Fix typos

docs/source/whatsnew/version0.9.rst

@@ -1,283 +1,283
 ========================================
 0.9 series
 ========================================
 
 Release 0.9.1
 =============
 
 This release was quickly made to restore compatibility with Python 2.4, which
 version 0.9 accidentally broke.  No new features were introduced, other than
 some additional testing support for internal use.
 
 
 Release 0.9
 ===========
 
 New features
 ------------
 
 * All furl files and security certificates are now put in a read-only
   directory named ~/.ipython/security.
 
 * A single function :func:`get_ipython_dir`, in :mod:`IPython.genutils` that
   determines the user's IPython directory in a robust manner.
 
 * Laurent's WX application has been given a top-level script called
   ipython-wx, and it has received numerous fixes. We expect this code to be
   architecturally better integrated with Gael's WX 'ipython widget' over the
   next few releases.
 
 * The Editor synchronization work by Vivian De Smedt has been merged in.  This
   code adds a number of new editor hooks to synchronize with editors under
   Windows.
 
 * A new, still experimental but highly functional, WX shell by Gael Varoquaux.
   This work was sponsored by Enthought, and while it's still very new, it is
   based on a more cleanly organized architecture of the various IPython
   components. We will continue to develop this over the next few releases as a
   model for GUI components that use IPython.
 
 * Another GUI frontend, Cocoa based (Cocoa is the OSX native GUI framework),
   authored by Barry Wark.  Currently the WX and the Cocoa ones have slightly
   different internal organizations, but the whole team is working on finding
   what the right abstraction points are for a unified codebase.
 
 * As part of the frontend work, Barry Wark also implemented an experimental
   event notification system that various ipython components can use.  In the
   next release the implications and use patterns of this system regarding the
   various GUI options will be worked out.
 
 * IPython finally has a full test system, that can test docstrings with
   IPython-specific functionality.  There are still a few pieces missing for it
   to be widely accessible to all users (so they can run the test suite at any
   time and report problems), but it now works for the developers.  We are
   working hard on continuing to improve it, as this was probably IPython's
   major Achilles heel (the lack of proper test coverage made it effectively
   impossible to do large-scale refactoring).  The full test suite can now
   be run using the :command:`iptest` command line program.
 
 * The notion of a task has been completely reworked.  An `ITask` interface has
   been created.  This interface defines the methods that tasks need to
   implement.  These methods are now responsible for things like submitting
   tasks and processing results.  There are two basic task types:
   :class:`IPython.kernel.task.StringTask` (this is the old `Task` object, but
   renamed) and the new :class:`IPython.kernel.task.MapTask`, which is based on
   a function.
 
 * A new interface, :class:`IPython.kernel.mapper.IMapper` has been defined to
   standardize the idea of a `map` method.  This interface has a single `map`
   method that has the same syntax as the built-in `map`.  We have also defined
   a `mapper` factory interface that creates objects that implement
   :class:`IPython.kernel.mapper.IMapper` for different controllers.  Both the
   multiengine and task controller now have mapping capabilities.
 
 * The parallel function capabilities have been reworks.  The major changes are
   that i) there is now an `@parallel` magic that creates parallel functions,
   ii) the syntax for multiple variable follows that of `map`, iii) both the
   multiengine and task controller now have a parallel function implementation.
 
 * All of the parallel computing capabilities from `ipython1-dev` have been
   merged into IPython proper.  This resulted in the following new subpackages:
   :mod:`IPython.kernel`, :mod:`IPython.kernel.core`, :mod:`traitlets.config`,
   :mod:`IPython.tools` and :mod:`IPython.testing`.
 
 * As part of merging in the `ipython1-dev` stuff, the ``setup.py`` script and
   friends have been completely refactored.  Now we are checking for
   dependencies using the approach that matplotlib uses.
 
 * The documentation has been completely reorganized to accept the 
   documentation from `ipython1-dev`.
 
 * We have switched to using Foolscap for all of our network protocols in
   :mod:`IPython.kernel`.  This gives us secure connections that are both
   encrypted and authenticated.
 
 * We have a brand new `COPYING.txt` files that describes the IPython license
   and copyright. The biggest change is that we are putting "The IPython
   Development Team" as the copyright holder. We give more details about
   exactly what this means in this file. All developer should read this and use
   the new banner in all IPython source code files.
 
 * sh profile: ./foo runs foo as system command, no need to do !./foo anymore
 
 * String lists now support ``sort(field, nums = True)`` method (to easily sort
   system command output). Try it with ``a = !ls -l ; a.sort(1, nums=1)``.
 
 * '%cpaste foo' now assigns the pasted block as string list, instead of string
 
 * The ipcluster script now run by default with no security.  This is done
   because the main usage of the script is for starting things on localhost.
   Eventually when ipcluster is able to start things on other hosts, we will put
   security back.
 
 * 'cd --foo' searches directory history for string foo, and jumps to that dir.
   Last part of dir name is checked first. If no matches for that are found,
   look at the whole path.
 
   
 Bug fixes
 ---------
 
 * The Windows installer has been fixed.  Now all IPython scripts have ``.bat``
   versions created.  Also, the Start Menu shortcuts have been updated.
 
 * The colors escapes in the multiengine client are now turned off on win32 as
   they don't print correctly.
 
 * The :mod:`IPython.kernel.scripts.ipengine` script was exec'ing
   mpi_import_statement incorrectly, which was leading the engine to crash when
   mpi was enabled.
 
 * A few subpackages had missing ``__init__.py`` files.
 
 * The documentation is only created if Sphinx is found.  Previously, the
   ``setup.py`` script would fail if it was missing.
 
 * Greedy ``cd`` completion has been disabled again (it was enabled in 0.8.4) as
   it caused problems on certain platforms.
           
 
 Backwards incompatible changes
 ------------------------------
 
 * The ``clusterfile`` options of the :command:`ipcluster` command has been
   removed as it was not working and it will be replaced soon by something much
   more robust.
 
 * The :mod:`IPython.kernel` configuration now properly find the user's
   IPython directory.
 
 * In ipapi, the :func:`make_user_ns` function has been replaced with
   :func:`make_user_namespaces`, to support dict subclasses in namespace
   creation.
 
 * :class:`IPython.kernel.client.Task` has been renamed
   :class:`IPython.kernel.client.StringTask` to make way for new task types.
 
 * The keyword argument `style` has been renamed `dist` in `scatter`, `gather`
   and `map`.
 
 * Renamed the values that the rename `dist` keyword argument can have from
   `'basic'` to `'b'`.
 
 * IPython has a larger set of dependencies if you want all of its capabilities.
   See the ``setup.py`` script for details.
 
 * The constructors for :class:`IPython.kernel.client.MultiEngineClient` and 
   :class:`IPython.kernel.client.TaskClient` no longer take the (ip,port) tuple.
   Instead they take the filename of a file that contains the FURL for that
   client.  If the FURL file is in your IPYTHONDIR, it will be found automatically
   and the constructor can be left empty.
 
 * The asynchronous clients in :mod:`IPython.kernel.asyncclient` are now created 
   using the factory functions :func:`get_multiengine_client` and 
   :func:`get_task_client`.  These return a `Deferred` to the actual client.
 
 * The command line options to `ipcontroller` and `ipengine` have changed to
   reflect the new Foolscap network protocol and the FURL files.  Please see the
   help for these scripts for details.
 
 * The configuration files for the kernel have changed because of the Foolscap
   stuff.  If you were using custom config files before, you should delete them
   and regenerate new ones.
 
 Changes merged in from IPython1
 -------------------------------
 
 New features
 ............
 
 * Much improved ``setup.py`` and ``setupegg.py`` scripts.  Because Twisted and
   zope.interface are now easy installable, we can declare them as dependencies
   in our setupegg.py script.
 
 * IPython is now compatible with Twisted 2.5.0 and 8.x.
 
 * Added a new example of how to use :mod:`ipython1.kernel.asynclient`.
 
 * Initial draft of a process daemon in :mod:`ipython1.daemon`.  This has not
   been merged into IPython and is still in `ipython1-dev`.
   
 * The ``TaskController`` now has methods for getting the queue status.
 
 * The ``TaskResult`` objects not have information about how long the task
   took to run.
   
 * We are attaching additional attributes to exceptions ``(_ipython_*)`` that 
   we use to carry additional info around.
   
 * New top-level module :mod:`asyncclient` that has asynchronous versions (that
   return deferreds) of the client classes.  This is designed to users who want
   to run their own Twisted reactor.
   
 * All the clients in :mod:`client` are now based on Twisted.  This is done by 
   running the Twisted reactor in a separate thread and using the
   :func:`blockingCallFromThread` function that is in recent versions of Twisted.
 
 * Functions can now be pushed/pulled to/from engines using
   :meth:`MultiEngineClient.push_function` and
   :meth:`MultiEngineClient.pull_function`.
 
 * Gather/scatter are now implemented in the client to reduce the work load
   of the controller and improve performance.
 
-* Complete rewrite of the IPython docuementation.  All of the documentation
+* Complete rewrite of the IPython documentation.  All of the documentation
   from the IPython website has been moved into docs/source as restructured
   text documents.  PDF and HTML documentation are being generated using 
   Sphinx.
 
 * New developer oriented documentation: development guidelines and roadmap. 
 
 * Traditional ``ChangeLog`` has been changed to a more useful ``changes.txt``
   file that is organized by release and is meant to provide something more
   relevant for users.
 
 Bug fixes
 .........
 
 * Created a proper ``MANIFEST.in`` file to create source distributions.
 
 * Fixed a bug in the ``MultiEngine`` interface.  Previously, multi-engine 
   actions were being collected with a :class:`DeferredList` with 
   ``fireononeerrback=1``.  This meant that methods were returning 
   before all engines had given their results.  This was causing extremely odd 
   bugs in certain cases. To fix this problem, we have 1) set 
   ``fireononeerrback=0`` to make sure all results (or exceptions) are in 
   before returning and 2) introduced a :exc:`CompositeError` exception 
   that wraps all of the engine exceptions.  This is a huge change as it means 
   that users will have to catch :exc:`CompositeError` rather than the actual
   exception.
 
 Backwards incompatible changes
 ..............................
 
 * All names have been renamed to conform to the lowercase_with_underscore
   convention.  This will require users to change references to all names like
   ``queueStatus`` to ``queue_status``.
 
 * Previously, methods like :meth:`MultiEngineClient.push` and
   :meth:`MultiEngineClient.push` used ``*args`` and ``**kwargs``.  This was
   becoming a problem as we weren't able to introduce new keyword arguments into
   the API.  Now these methods simple take a dict or sequence.  This has also
   allowed us to get rid of the ``*All`` methods like :meth:`pushAll` and
   :meth:`pullAll`.  These things are now handled with the ``targets`` keyword
   argument that defaults to ``'all'``.
 
 * The :attr:`MultiEngineClient.magicTargets` has been renamed to
   :attr:`MultiEngineClient.targets`. 
 
 * All methods in the MultiEngine interface now accept the optional keyword
   argument ``block``.
 
 * Renamed :class:`RemoteController` to :class:`MultiEngineClient` and 
   :class:`TaskController` to :class:`TaskClient`.
 
 * Renamed the top-level module from :mod:`api` to :mod:`client`.
 
 * Most methods in the multiengine interface now raise a :exc:`CompositeError`
   exception that wraps the user's exceptions, rather than just raising the raw
   user's exception.
 
 * Changed the ``setupNS`` and ``resultNames`` in the ``Task`` class to ``push`` 
   and ``pull``.
 

docs/source/whatsnew/version7.rst

@@ -1,1798 +1,1798
 ============
  7.x Series
 ============
 
 .. _version 7.34:
 
 IPython 7.34
 ============
 
 This version contains a single fix:  fix uncaught BdbQuit exceptions on ipdb
 exit :ghpull:`13668`
 
 
 .. _version 7.33:
 
 IPython 7.33
 ============
 
  - Allow IPython hooks to receive current cell ids when frontend support it. See
    :ghpull:`13600`
 
  - ``?`` does not trigger the insertion of a new cell anymore as most frontend
    allow proper multiline edition. :ghpull:`13625`
 
 
 .. _version 7.32:
 
 IPython 7.32
 ============
 
 
 
 Autoload magic lazily
 ---------------------
 
 The ability to configure magics to be lazily loaded has been added to IPython.
 See the ``ipython --help-all`` section on ``MagicsManager.lazy_magic``.
 One can now use::
 
     c.MagicsManager.lazy_magics = {
               "my_magic": "slow.to.import",
               "my_other_magic": "also.slow",
     }
 
 And on first use of ``%my_magic``, or corresponding cell magic, or other line magic,
 the corresponding ``load_ext`` will be called just before trying to invoke the magic.
 
 Misc
 ----
 
  - Update sphinxify  for Docrepr 0.2.0  :ghpull:`13503`.
  - Set co_name for cells run line by line (to fix debugging with Python 3.10)
    :ghpull:`13535`
 
 
 Many thanks to all the contributors to this release. You can find all individual
 contributions to this milestone `on github
 <https://github.com/ipython/ipython/milestone/99>`__.
 
 Thanks as well to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 .. _version 7.31:
 
 IPython 7.31
 ============
 
 IPython 7.31 brings a couple of backports and fixes from the 8.0 branches,
 it is likely one of the last releases of the 7.x series, as 8.0 will probably be released
 between this release and what would have been 7.32.
 
 Please test 8.0 beta/rc releases in addition to this release.
 
 This Releases:
  - Backport some fixes for Python 3.10 (:ghpull:`13412`)
  - use full-alpha transparency on dvipng rendered LaTeX (:ghpull:`13372`)
 
 Many thanks to all the contributors to this release. You can find all individual
 contributions to this milestone `on github
 <https://github.com/ipython/ipython/milestone/95>`__.
 
 Thanks as well to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 7.30:
 
 IPython 7.30
 ============
 
 IPython 7.30 fixes a couple of bugs introduce in previous releases (in
 particular with respect to path handling), and introduce a few features and
 improvements:
 
 Notably we will highlight :ghpull:`13267` "Document that ``%run`` can execute
 notebooks and ipy scripts.", which is the first commit of Fernando Pérez since
 mid 2016 (IPython 5.1). If you are new to IPython, Fernando created IPython in
 2001. The other most recent contribution of Fernando to IPython itself was
 May 2018, by reviewing and merging PRs. I want to note that Fernando is still
 active but mostly as a mentor and leader of the whole Jupyter organisation, but
 we're still happy to see him contribute code !
 
 :ghpull:`13290` "Use sphinxify (if available) in object_inspect_mime path"
 should allow richer Repr of docstrings when using jupyterlab inspector.
 
 :ghpull:`13311` make the debugger use ``ThreadPoolExecutor`` for debugger cmdloop.
 This should fix some issues/infinite loop, but let us know if you come across
 any regressions. In particular this fixes issues with `kmaork/madbg <https://github.com/kmaork/madbg>`_,
 a remote debugger for IPython.
 
 Note that this is likely the ante-penultimate release of IPython 7.x as a stable
 branch, as I hope to release IPython 8.0 as well as IPython 7.31 next
 month/early 2022.
 
 IPython 8.0 will drop support for Python 3.7, removed nose as a dependency, and
 7.x will only get critical bug fixes with 8.x becoming the new stable. This will
 not be possible without `NumFOCUS Small Development Grants
 <https://numfocus.org/programs/small-development-grants>`_ Which allowed us to
 hire `Nikita Kniazev <https://github.com/Kojoley>`_ who provide Python and C++
 help and contracting work.
 
 
 Many thanks to all the contributors to this release. You can find all individual
 contributions to this milestone `on github
 <https://github.com/ipython/ipython/milestone/94?closed=1>`__.
 
 Thanks as well to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 7.29:
 
 IPython 7.29
 ============
 
 
 IPython 7.29 brings a couple of new functionalities to IPython and a number of bugfixes.
 It is one of the largest recent release, relatively speaking, with close to 15 Pull Requests.
 
 
  - fix an issue where base64 was returned instead of bytes when showing figures :ghpull:`13162`
  - fix compatibility with PyQt6, PySide 6 :ghpull:`13172`. This may be of
    interest if you are running on Apple Silicon as only qt6.2+ is natively
    compatible.
  - fix matplotlib qtagg eventloop :ghpull:`13179`
  - Multiple docs fixes, typos, ... etc.
  - Debugger will now exit by default on SigInt :ghpull:`13218`, this will be
    useful in notebook/lab if you forgot to exit the debugger. "Interrupt Kernel"
    will now exist the debugger.
 
 It give Pdb the ability to skip code in decorators. If functions contain a
 special value names ``__debuggerskip__ = True|False``, the function will not be
 stepped into, and Pdb will step into lower frames only if the value is set to
 ``False``. The exact behavior is still likely to have corner cases and will be
 refined in subsequent releases. Feedback welcome. See the debugger module
 documentation for more info. Thanks to the `D. E. Shaw
 group <https://deshaw.com/>`__ for funding this feature.
 
 The main branch of IPython is receiving a number of changes as we received a
 `NumFOCUS SDG <https://numfocus.org/programs/small-development-grants>`__
 ($4800), to help us finish replacing ``nose`` by ``pytest``, and make IPython
 future proof with an 8.0 release.
 
 
 Many thanks to all the contributors to this release. You can find all individual
 contributions to this milestone `on github
 <https://github.com/ipython/ipython/milestone/93>`__.
 
 Thanks as well to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 7.28:
 
 IPython 7.28
 ============
 
 
 IPython 7.28 is again a minor release that mostly bring bugfixes, and couple of
 improvement. Many thanks to MrMino, who again did all the work this month, and
 made a number of documentation improvements.
 
 Here is a non-exhaustive list of changes,
 
 Fixes:
 
  - async with doesn't allow newlines :ghpull:`13090`
  - Dynamically changing to vi mode via %config magic) :ghpull:`13091`
 
 Virtualenv handling fixes:
 
  - init_virtualenv now uses Pathlib :ghpull:`12548`
  - Fix Improper path comparison of virtualenv directories :ghpull:`13140`
- - Fix virtual environment user warning for lower case pathes :ghpull:`13094`
+ - Fix virtual environment user warning for lower case paths :ghpull:`13094`
  - Adapt to all sorts of drive names for cygwin :ghpull:`13153`
 
 New Features:
 
  - enable autoplay in embed YouTube player :ghpull:`13133`
 
  Documentation:
 
  - Fix formatting for the core.interactiveshell documentation :ghpull:`13118`
  - Fix broken ipyparallel's refs :ghpull:`13138`
  - Improve formatting of %time documentation :ghpull:`13125`
  - Reword the YouTubeVideo autoplay WN :ghpull:`13147`
 
 
 Highlighted features
 --------------------
 
 
 ``YouTubeVideo`` autoplay and the ability to add extra attributes to ``IFrame``
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 You can add any extra attributes to the ``<iframe>`` tag using the new
 ``extras`` argument in the ``IFrame`` class. For example::
 
     In [1]: from IPython.display import IFrame
 
     In [2]: IFrame(src="src", width=300, height=300, extras=['loading="eager"'])
 
 The above cells will result in the following HTML code being displayed in a
 notebook::
 
     <iframe
         width="300"
         height="300"
         src="src"
         frameborder="0"
         allowfullscreen
         loading="eager"
     ></iframe>
 
 Related to the above, the ``YouTubeVideo`` class now takes an
 ``allow_autoplay`` flag, which sets up the iframe of the embedded YouTube video
 such that it allows autoplay.
 
 .. note::
     Whether this works depends on the autoplay policy of the browser rendering
     the HTML allowing it. It also could get blocked by some browser extensions.
 
 Try it out!
 
 ::
 
     In [1]: from IPython.display import YouTubeVideo
 
     In [2]: YouTubeVideo("dQw4w9WgXcQ", allow_autoplay=True)
 
 
 
 Thanks
 ------
 
 Many thanks to all the contributors to this release. You can find all individual
 contributions to this milestone `on github
 <https://github.com/ipython/ipython/milestone/92>`__.
 
 Thanks as well to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 7.27:
 
 IPython 7.27
 ============
 
 IPython 7.27 is a minor release that fixes a couple of issues and compatibility.
 
 - Add support for GTK4 :ghpull:`131011`
 - Add support for Qt6 :ghpull:`13085`
 - Fix an issue with pip magic on windows :ghpull:`13093`
 
 Thanks
 ------
 
 Many thanks to all the contributors to this release. You can find all individual
 contributions to this milestone `on github
 <https://github.com/ipython/ipython/milestone/91>`__.
 
 Thanks as well to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 .. _version 7.26:
 
 IPython 7.26
 ============
 
 IPython 7.26 is a minor release that fixes a couple of issues, updates in API
 and Copyright/Licenses issues around various part of the codebase.
 
 We'll highlight `this issue <https://github.com/ipython/ipython/issues/13039>`
 pointing out we were including and refereeing to code from Stack Overflow which
 was CC-BY-SA, hence incompatible with the BSD license of IPython. This lead us
 to a rewriting of the corresponding logic which in our case was done in a more
 efficient way (in our case we were searching string prefixes instead of full
 strings).
 
 You will notice also a number of documentation improvements and cleanup.
 
 Of particular interest are the following Pull-requests:
 
 
  - The IPython directive now uses Sphinx logging for warnings. :ghpull:`13030`.
  - Add expiry days option to pastebin magic and change http protocol to https.
    :ghpull:`13056`
  - Make Ipython.utils.timing work with jupyterlite :ghpull:`13050`.
 
 Pastebin magic expiry days option
 ---------------------------------
 
 The Pastebin magic now has ``-e`` option to determine 
 the number of days for paste expiration. For example
 the paste that created with ``%pastebin -e 20 1`` magic will
 be available for next 20 days.
 
 
 
 
 
 Thanks
 ------
 
 Many thanks to all the contributors to this release and in particular MrMino who
 is doing most of the work those days. You can find all individual contributions
 to this milestone `on github <https://github.com/ipython/ipython/milestone/90>`__.
 
 Thanks as well to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 7.25:
 
 IPython 7.25
 ============
 
 IPython 7.25 is a minor release that contains a single bugfix, which is highly
 recommended for all users of ipdb, ipython debugger %debug magic and similar.
 
 Issuing commands like ``where`` from within the debugger would reset the
 local variables changes made by the user. It is interesting to look at the root
 cause of the issue as accessing an attribute (``frame.f_locals``) would trigger
 this side effects.
 
 Thanks in particular to the patience from the reporters at D.E. Shaw for their
 initial bug report that was due to a similar coding oversight in an extension,
 and who took time to debug and narrow down the problem.
 
 Thanks
 ------
 
 Many thanks to all the contributors to this release you can find all individual
 contributions to this milestone `on github <https://github.com/ipython/ipython/milestone/89>`__.
 
 Thanks as well to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 7.24:
 
 IPython 7.24
 ============
 
 Third release of IPython for 2021, mostly containing bug fixes. A couple of not
 typical updates:
 
 Misc
 ----
 
 
  - Fix an issue where ``%recall`` would both succeeded and print an error message
    it failed. :ghpull:`12952`
  - Drop support for NumPy 1.16 – practically has no effect beyond indicating in
    package metadata that we do not support it. :ghpull:`12937`
 
 Debugger improvements
 ---------------------
 
 The debugger (and ``%debug`` magic) have been improved and can skip or hide frames
 originating from files that are not writable to the user, as these are less
 likely to be the source of errors, or be part of system files this can be a useful
 addition when debugging long errors.
 
 In addition to the global ``skip_hidden True|False`` command, the debugger has
 gained finer grained control of predicates as to whether to a frame should be
 considered hidden. So far 3 predicates are available :
 
   - ``tbhide``: frames containing the local variable ``__tracebackhide__`` set to
     True.
   - ``readonly``: frames originating from readonly files, set to False.
   - ``ipython_internal``: frames that are likely to be from IPython internal
     code, set to True.
 
 You can toggle individual predicates during a session with
 
 .. code-block::
 
    ipdb> skip_predicates readonly True
 
 Read-only files will now be considered hidden frames.
 
 
 You can call ``skip_predicates`` without arguments to see the states of current
 predicates:
 
 .. code-block::
 
     ipdb> skip_predicates
     current predicates:
         tbhide : True
         readonly : False
         ipython_internal : True
 
 If all predicates are set to ``False``,  ``skip_hidden`` will practically have
 no effect. We attempt to warn you when all predicates are False.
 
 Note that the ``readonly`` predicate may increase disk access as we check for
 file access permission for all frames on many command invocation, but is usually
 cached by operating systems. Let us know if you encounter any issues.
 
 As the IPython debugger does not use the traitlets infrastructure for
 configuration, by editing your ``.pdbrc`` files and appending commands you would
 like to be executed just before entering the interactive prompt. For example:
 
 
 .. code::
 
     # file : ~/.pdbrc
     skip_predicates readonly True
     skip_predicates tbhide False
 
 Will hide read only frames by default and show frames marked with
 ``__tracebackhide__``.
 
 
 
 
 Thanks
 ------
 
 Many thanks to all the contributors to this release you can find all individual
 contributions to this milestone `on github <https://github.com/ipython/ipython/milestone/87>`__.
 
 Thanks as well to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries, in particular above mentioned
 improvements to the debugger.
 
 
 
 
 .. _version 7.23:
 
 IPython 7.23 and 7.23.1
 =======================
 
 
 Third release of IPython for 2021, mostly containing bug fixes. A couple of not
 typical updates:
 
  - We moved to GitHub actions away from Travis-CI, the transition may not be
    100% complete (not testing on nightly anymore), but as we ran out of
    Travis-Ci hours on the IPython organisation that was a necessary step.
    :ghpull:`12900`.
 
  - We have a new dependency: ``matplotlib-inline``, which try to extract
    matplotlib inline backend specific behavior. It is available on PyPI and
    conda-forge thus should not be a problem to upgrade to this version. If you
    are a package maintainer that might be an extra dependency to package first.
    :ghpull:`12817` (IPython 7.23.1 fix a typo that made this change fail)
 
 In the addition/new feature category, ``display()`` now have a ``clear=True``
 option to clear the display if any further outputs arrives, allowing users to
 avoid having to use ``clear_output()`` directly. :ghpull:`12823`.
 
 In bug fixes category, this release fix an issue when printing tracebacks
 containing Unicode characters :ghpull:`12758`.
 
 In code cleanup category :ghpull:`12932` remove usage of some deprecated
 functionality for compatibility with Python 3.10.
 
 
 
 Thanks
 ------
 
 Many thanks to all the contributors to this release you can find all individual
 contributions to this milestone `on github <https://github.com/ipython/ipython/milestone/86>`__.
 In particular MrMino for responding to almost all new issues, and triaging many
 of the old ones, as well as takluyver, minrk, willingc for reacting quikly when
 we ran out of CI Hours.
 
 Thanks as well to organisations, QuantStack (martinRenou and SylvainCorlay) for
 extracting matplotlib inline backend into its own package, and the `D. E. Shaw group
 <https://deshaw.com/>`__ for sponsoring work on IPython and related libraries.
 
 
 .. _version 7.22:
 
 IPython 7.22
 ============
 
 Second release of IPython for 2021, mostly containing bug fixes. Here is a quick
 rundown of the few changes.
 
 - Fix some ``sys.excepthook`` shenanigan when embedding with qt, recommended if
   you – for example – use `napari <https://napari.org>`__. :ghpull:`12842`.
 - Fix bug when using the new ipdb ``%context`` magic :ghpull:`12844`
 - Couples of deprecation cleanup :ghpull:`12868`
 - Update for new dpast.com api if you use the ``%pastbin`` magic. :ghpull:`12712`
 - Remove support for numpy before 1.16. :ghpull:`12836`
 
 
 Thanks
 ------
 
 We have a new team member that you should see more often on the IPython
 repository, Błażej Michalik (@MrMino) have been doing regular contributions to
 IPython, and spent time replying to many issues and guiding new users to the
 codebase; they now have triage permissions to the IPython repository and we'll
 work toward giving them more permission in the future.
 
 Many thanks to all the contributors to this release you can find all individual
 contributions to this milestone `on github <https://github.com/ipython/ipython/milestone/84>`__.
 
 Thanks as well to organisations, QuantStack for working on debugger
 compatibility for Xeus_python, and the `D. E. Shaw group
 <https://deshaw.com/>`__ for sponsoring work on IPython and related libraries.
 
 .. _version 721:
 
 IPython 7.21
 ============
 
 IPython 7.21 is the first release we have back on schedule of one release every
 month; it contains a number of minor fixes and improvements, notably, the new
 context command for ipdb
 
 
 New "context" command in ipdb
 -----------------------------
 
 It is now possible to change the number of lines shown in the backtrace
 information in ipdb using "context" command. :ghpull:`12826`
 
 (thanks @MrMino, there are other improvement from them on master).
 
 Other notable changes in IPython 7.21
 -------------------------------------
 
 - Fix some issues on new osx-arm64 :ghpull:`12804`, :ghpull:`12807`. 
 - Compatibility with Xeus-Python for debugger protocol, :ghpull:`12809`
 - Misc docs fixes for compatibility and uniformity with Numpydoc.
   :ghpull:`12824`
 
 
 Thanks
 ------
 
 Many thanks to all the contributors to this release you can find all individual
 contribution to this milestone `on github <https://github.com/ipython/ipython/milestone/83>`__.
 
 
 .. _version 720:
 
 IPython 7.20
 ============
 
 IPython 7.20 is the accumulation of 3 month of work on IPython, spacing between
 IPython release have been increased from the usual once a month for various
 reason.
 
    - Mainly as I'm too busy and the effectively sole maintainer, and
    - Second because not much changes happened before mid December.
 
 The main driver for this release was the new version of Jedi 0.18 breaking API;
 which was taken care of in the master branch early in 2020 but not in 7.x as I
 though that by now 8.0 would be out.
 
 The inclusion of a resolver in pip did not help and actually made things worse.
 If usually I would have simply pinned Jedi to ``<0.18``; this is not a solution
 anymore as now pip is free to install Jedi 0.18, and downgrade IPython.
 
 I'll do my best to keep the regular release, but as the 8.0-dev branch and 7.x
 are starting to diverge this is becoming difficult in particular with my limited
 time, so if you have any cycles to spare I'll appreciate your help to respond to
 issues and pushing 8.0 forward.
 
 Here are thus some of the changes for IPython 7.20.
 
   - Support for PyQt5 >= 5.11 :ghpull:`12715`
-  - ``%reset`` remove imports more agressively :ghpull:`12718`
+  - ``%reset`` remove imports more aggressively :ghpull:`12718`
   - fix the ``%conda`` magic :ghpull:`12739`
   - compatibility with Jedi 0.18, and bump minimum Jedi version. :ghpull:`12793`
 
 
 .. _version 719:
 
 IPython 7.19
 ============
 
 IPython 7.19 accumulative two month of works, bug fixes and improvements, there
 was exceptionally no release last month.
 
   - Fix to restore the ability to specify more than one extension using command
     line flags when using traitlets 5.0 :ghpull:`12543`
   - Docs docs formatting that make the install commands work on zsh
     :ghpull:`12587`
   - Always display the last frame in tracebacks even if hidden with
     ``__tracebackhide__`` :ghpull:`12601`
   - Avoid an issue where a callback can be registered multiple times.
     :ghpull:`12625`
   - Avoid an issue in debugger mode where frames changes could be lost.
     :ghpull:`12627`
 
   - Never hide the frames that invoke a debugger, even if marked as hidden by
     ``__tracebackhide__`` :ghpull:`12631`
   - Fix calling the debugger in a recursive manner :ghpull:`12659`
 
 
 A number of code changes have landed on master and we are getting close to
 enough new features and codebase improvement that a 8.0 start to make sens.
 For downstream packages, please start working on migrating downstream testing
 away from iptest and using pytest, as nose will not work on Python 3.10 and we
 will likely start removing it as a dependency for testing.
 
 .. _version 718:
 
 IPython 7.18
 ============
 
 IPython 7.18 is a minor release that mostly contains bugfixes.
 
  - ``CRLF`` is now handled by magics my default; solving some issues due to copy
    pasting on windows. :ghpull:`12475`
 
  - Requiring pexpect ``>=4.3`` as we are Python 3.7+ only and earlier version of
    pexpect will be incompatible. :ghpull:`12510`
 
  - Minimum jedi version is now 0.16. :ghpull:`12488`
 
 
 
 .. _version 717:
 
 IPython 7.17
 ============
 
 IPython 7.17 brings a couple of new improvements to API and a couple of user
 facing changes to make the terminal experience more user friendly.
 
 :ghpull:`12407` introduces the ability to pass extra argument to the IPython
 debugger class; this is to help a new project from ``kmaork``
 (https://github.com/kmaork/madbg) to feature a fully remote debugger.
 
 :ghpull:`12410` finally remove support for 3.6, while the codebase is still
 technically compatible; IPython will not install on Python 3.6.
 
 lots of work on the debugger and hidden frames from ``@impact27`` in
 :ghpull:`12437`, :ghpull:`12445`, :ghpull:`12460` and in particular
 :ghpull:`12453` which make the debug magic more robust at handling spaces.
 
 Biggest API addition is code transformation which is done before code execution;
 IPython allows a number of hooks to catch non-valid Python syntax (magic, prompt
 stripping...etc). Transformers are usually called many time; typically:
 
  - When trying to figure out whether the code is complete and valid (should we
    insert a new line or execute ?)
  - During actual code execution pass before giving the code to Python's
    ``exec``.
 
 This lead to issues when transformer might have had side effects; or do external
 queries. Starting with IPython 7.17 you can expect your transformer to be called
 less time.
 
 Input transformers are now called only once in the execution path of
 `InteractiveShell`, allowing to register transformer that potentially have side
 effects (note that this is not recommended). Internal methods `should_run_async`, and
 `run_cell_async` now take a recommended optional `transformed_cell`, and
 `preprocessing_exc_tuple` parameters that will become mandatory at some point in
 the future; that is to say cells need to be explicitly transformed to be valid
 Python syntax ahead of trying to run them. :ghpull:`12440`;
 
 ``input_transformers`` can now also have an attribute ``has_side_effects`` set
 to `True`, when this attribute is present; this  will prevent the transformers
 from being ran when IPython is trying to guess whether the user input is
 complete. Note that this may means you will need to explicitly execute in some
 case where your transformations are now not ran; but will not affect users with
 no custom extensions.
 
 
 API Changes
 -----------
 
 Change of API and exposed objects automatically detected using `frappuccino
 <https://pypi.org/project/frappuccino/>`_
 
 
  The following items are new since 7.16.0::
 
      + IPython.core.interactiveshell.InteractiveShell.get_local_scope(self, stack_depth)
 
  The following signatures differ since 7.16.0::
 
      - IPython.core.interactiveshell.InteractiveShell.run_cell_async(self, raw_cell, store_history=False, silent=False, shell_futures=True)
      + IPython.core.interactiveshell.InteractiveShell.run_cell_async(self, raw_cell, store_history=False, silent=False, shell_futures=True, *, transformed_cell=None, preprocessing_exc_tuple=None)
 
      - IPython.core.interactiveshell.InteractiveShell.should_run_async(self, raw_cell)
      + IPython.core.interactiveshell.InteractiveShell.should_run_async(self, raw_cell, *, transformed_cell=None, preprocessing_exc_tuple=None)
 
      - IPython.terminal.debugger.TerminalPdb.pt_init(self)
      + IPython.terminal.debugger.TerminalPdb.pt_init(self, pt_session_options=None)
 
 This method was added::
 
      + IPython.core.interactiveshell.InteractiveShell.get_local_scope
 
 Which is now also present on subclasses::
 
      + IPython.terminal.embed.InteractiveShellEmbed.get_local_scope
      + IPython.terminal.interactiveshell.TerminalInteractiveShell.get_local_scope
 
 
 .. _version 716:
 
 IPython 7.16.1, 7.16.2
 ======================
 
 IPython 7.16.1 was release immediately after 7.16.0 to fix a conda packaging issue.
 The source is identical to 7.16.0 but the file permissions in the tar are different.
 
 IPython 7.16.2 pins jedi dependency to "<=0.17.2" which should prevent some
 issues for users still on python 3.6. This may not be sufficient as pip may
 still allow to downgrade IPython.
 
 Compatibility with Jedi > 0.17.2 was not added as this would have meant bumping
 the minimal version to >0.16.
 
 IPython 7.16
 ============
 
 
 The default traceback mode will now skip frames that are marked with
 ``__tracebackhide__ = True`` and show how many traceback frames have been
 skipped. This can be toggled by using :magic:`xmode` with the ``--show`` or
 ``--hide`` attribute. It will have no effect on non verbose traceback modes.
 
 The ipython debugger also now understands ``__tracebackhide__`` as well and will
 skip hidden frames when displaying. Movement up and down the stack will skip the
 hidden frames and will show how many frames were hidden. Internal IPython frames
 are also now hidden by default. The behavior can be changed with the
 ``skip_hidden`` while in the debugger, command and accepts "yes", "no", "true"
 and "false" case insensitive parameters.
 
 
 Misc Noticeable changes:
 ------------------------
 
 - Exceptions are now (re)raised when running notebooks via the :magic:`%run`, helping to catch issues in workflows and
   pipelines. :ghpull:`12301`
 - Fix inputhook for qt 5.15.0 :ghpull:`12355`
 - Fix wx inputhook :ghpull:`12375`
 - Add handling for malformed pathext env var (Windows) :ghpull:`12367`
 - use $SHELL in system_piped :ghpull:`12360` for uniform behavior with
   ipykernel.
 
 Reproducible Build
 ------------------
 
 IPython 7.15 reproducible build did not work, so we try again this month
 :ghpull:`12358`.
 
 
 API Changes
 -----------
 
 Change of API and exposed objects automatically detected using `frappuccino
 <https://pypi.org/project/frappuccino/>`_ (still in beta):
 
 
 The following items are new and mostly related to understanding ``__tracebackhide__``::
 
     + IPython.core.debugger.Pdb.do_down(self, arg)
     + IPython.core.debugger.Pdb.do_skip_hidden(self, arg)
     + IPython.core.debugger.Pdb.do_up(self, arg)
     + IPython.core.debugger.Pdb.hidden_frames(self, stack)
     + IPython.core.debugger.Pdb.stop_here(self, frame)
 
 
 The following items have been removed::
 
     - IPython.core.debugger.Pdb.new_do_down
     - IPython.core.debugger.Pdb.new_do_up
 
 Those were implementation details.
 
 
 .. _version 715:
 
 IPython 7.15
 ============
 
 IPython 7.15 brings a number of bug fixes and user facing improvements.
 
 Misc Noticeable changes:
 ------------------------
 
  - Long completion name have better elision in terminal :ghpull:`12284`
  - I've started to test on Python 3.9 :ghpull:`12307` and fix some errors.
  - Hi DPI scaling of figures when using qt eventloop :ghpull:`12314`
  - Document the ability to have systemwide configuration for IPython.
    :ghpull:`12328`
  - Fix issues with input autoformatting :ghpull:`12336`
  - ``IPython.core.debugger.Pdb`` is now interruptible (:ghpull:`12168`, in 7.14
    but forgotten in release notes)
  - Video HTML attributes (:ghpull:`12212`, in 7.14 but forgotten in release
    notes)
 
 Reproducible Build
 ------------------
 
 Starting with IPython 7.15, I am attempting to provide reproducible builds,
 that is to say you should be able from the source tree to generate an sdist
 and wheel that are identical byte for byte with the publish version on PyPI.
 
 I've only tested on a couple of machines so far and the process is relatively
 straightforward, so this mean that IPython not only have a deterministic build
 process, but also I have either removed, or put under control all effects of
 the build environments on the final artifact.  I encourage you to attempt the
 build process on your machine as documented in :ref:`core_developer_guide`
 and let me know if you do not obtain an identical artifact.
 
 While reproducible builds is critical to check that the supply chain of (open
 source) software has not been compromised, it can also help to speedup many
 of the build processes in large environment (conda, apt...) by allowing
 better caching of intermediate build steps.
 
 Learn more on `<https://reproducible-builds.org/>`_. `Reflections on trusting
 trust <https://dl.acm.org/doi/10.1145/358198.358210>`_ is also one of the
 cornerstone and recommended reads on this subject.
 
 .. note::
 
    The build commit from which the sdist is generated is also `signed
    <https://en.wikipedia.org/wiki/Digital_signature>`_, so you should be able to
    check it has not been compromised, and the git repository is a `merkle-tree
    <https://en.wikipedia.org/wiki/Merkle_tree>`_, you can check the consistency
    with `git-fsck <https://git-scm.com/docs/git-fsck>`_ which you likely `want
    to enable by default
    <https://gist.github.com/mbbx6spp/14b86437e794bffb4120>`_.
 
 NEP29: Last version to support Python 3.6
 -----------------------------------------
 
 IPython 7.15 will be the Last IPython version to officially support Python
 3.6, as stated by `NumPy Enhancement Proposal 29
 <https://numpy.org/neps/nep-0029-deprecation_policy.html>`_. Starting with
 next minor version of IPython I may stop testing on Python 3.6 and may stop
 publishing release artifacts that install on Python 3.6
 
 Highlighted features
 --------------------
 
 Highlighted features are not new, but seem to not be widely known, this
 section will help you discover in more narrative form what you can do with
 IPython.
 
 Increase Tab Completion Menu Height
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-In terminal IPython it is possible to increase the hight of the tab-completion
+In terminal IPython it is possible to increase the height of the tab-completion
 menu. To do so set the value of
 :configtrait:`TerminalInteractiveShell.space_for_menu`, this will reserve more
 space at the bottom of the screen for various kind of menus in IPython including
 tab completion and searching in history. 
 
 Autoformat Code in the terminal
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 If you have a preferred code formatter, you can configure IPython to
 reformat your code. Set the value of
 :configtrait:`TerminalInteractiveShell.autoformatter` to for example ``'black'``
 and IPython will auto format your code when possible.
 
 
 .. _version 714:
 
 IPython 7.14
 ============
 
 IPython  7.14 is a minor release that fix a couple of bugs and prepare
 compatibility with new or future versions of some libraries. 
 
 Important changes:
 ------------------
 
  - Fix compatibility with Sphinx 3+ :ghpull:`12235`
  - Remove deprecated matplotlib parameter usage, compatibility with matplotlib
    3.3+ :`122250`
 
 Misc Changes
 ------------
 
  - set ``.py`` extension when editing current buffer in vi/emacs. :ghpull:`12167`
  - support for unicode identifiers in ``?``/``??`` :ghpull:`12208`
  - add extra options to the ``Video`` Rich objects :ghpull:`12212`
  - add pretty-printing to ``SimpleNamespace`` :ghpull:`12230`
 
 IPython.core.debugger.Pdb is now interruptible
 ----------------------------------------------
 
 A ``KeyboardInterrupt`` will now interrupt IPython's extended debugger, in order to make Jupyter able to interrupt it. (:ghpull:`12168`)
 
 Video HTML attributes
 ---------------------
 
 Add an option to `IPython.display.Video` to change the attributes of the HTML display of the video (:ghpull:`12212`)
 
 
 Pending deprecated imports
 --------------------------
 
 Many object present in ``IPython.core.display`` are there for internal use only,
 and should  already been imported from ``IPython.display`` by users and external
 libraries. Trying to import those from ``IPython.core.display`` is still possible
 but will trigger a
 deprecation warning in later versions of IPython and will become errors in the
 future. 
 
 This will simplify compatibility with other Python kernels (like Xeus-Python),
 and simplify code base. 
 
 
 
 
 .. _version 713:
 
 IPython 7.13
 ============
 
 IPython 7.13 is the final release of the 7.x branch since master is diverging
 toward an 8.0. Exiting new features have already been merged in 8.0 and will
 not be available on the 7.x branch. All the changes below have been backported
 from the master branch.
 
 
  - Fix inability to run PDB when inside an event loop :ghpull:`12141`
  - Fix ability to interrupt some processes on windows :ghpull:`12137`
  - Fix debugger shortcuts :ghpull:`12132`
  - improve tab completion when inside a string by removing irrelevant elements :ghpull:`12128`
  - Fix display of filename tab completion when the path is long :ghpull:`12122`
  - Many removal of Python 2 specific code path :ghpull:`12110`
  - displaying wav files do not require NumPy anymore, and is 5x to 30x faster :ghpull:`12113`
 
 See the list of all closed issues and pull request on `github
 <https://github.com/ipython/ipython/pulls?q=is%3Aclosed+milestone%3A7.13>`_.
 
 .. _version 712:
 
 IPython 7.12
 ============
 
 IPython 7.12 is a minor update that mostly brings code cleanup, removal of
 longtime deprecated function and a couple update to documentation cleanup as well.
 
 Notable changes are the following:
 
  - Exit non-zero when ipython is given a file path to run that doesn't exist :ghpull:`12074`
  - Test PR on ARM64 with Travis-CI :ghpull:`12073`
  - Update CI to work with latest Pytest :ghpull:`12086`
  - Add infrastructure to run ipykernel eventloop via trio :ghpull:`12097`
  - Support git blame ignore revs :ghpull:`12091`
  - Start multi-line ``__repr__`` s on their own line :ghpull:`12099`
 
 .. _version 7111:
 
 IPython 7.11.1
 ==============
 
 A couple of deprecated functions (no-op) have been reintroduces in py3compat as
 Cython was still relying on them, and will be removed in a couple of versions.
 
 .. _version 711:
 
 IPython 7.11
 ============
 
 IPython 7.11 received a couple of compatibility fixes and code cleanup.
 
 A number of function in the ``py3compat`` have been removed; a number of types
 in the IPython code base are now non-ambiguous and now always ``unicode``
 instead of ``Union[Unicode,bytes]``; many of the relevant code path have thus
 been simplified/cleaned and types annotation added.
 
 IPython support several verbosity level from exceptions. ``xmode plain`` now
 support chained exceptions. :ghpull:`11999`
 
 We are starting to remove ``shell=True`` in some usages of subprocess. While not directly
 a security issue (as IPython is made to run arbitrary code anyway) it is not good
 practice and we'd like to show the example. :ghissue:`12023`. This discussion
 was started by ``@mschwager`` thanks to a new auditing tool they are working on
 with duo-labs (`dlint <https://github.com/duo-labs/dlint>`_).
 
 Work around some bugs in Python 3.9 tokenizer :ghpull:`12057`
 
 IPython will now print its version after a crash. :ghpull:`11986`
 
 This is likely the last release from the 7.x series that will see new feature.
 The master branch will soon accept large code changes and thrilling new
 features; the 7.x branch will only start to accept critical bug fixes, and
 update dependencies.
 
 .. _version 7102:
 
 IPython 7.10.2
 ==============
 
 IPython 7.10.2 fix a couple of extra incompatibility between IPython, ipdb,
 asyncio and Prompt Toolkit 3.
 
 .. _version 7101:
 
 IPython 7.10.1
 ==============
 
 IPython 7.10.1 fix a couple of incompatibilities with Prompt toolkit 3 (please
 update Prompt toolkit to 3.0.2 at least), and fixes some interaction with
 headless IPython.
 
 .. _version 7100:
 
 IPython 7.10.0
 ==============
 
 IPython 7.10 is the first double digit minor release in the  last decade, and
 first since the release of IPython 1.0, previous double digit minor release was
 in August 2009.
 
 We've been trying to give you regular release on the last Friday of every month
 for a guaranty of rapid access to bug fixes and new features.
 
 Unlike the previous first few releases that have seen only a couple of code
 changes, 7.10 bring a number of changes, new features and bugfixes.
 
 Stop Support for Python 3.5 – Adopt NEP 29
 ------------------------------------------
 
 IPython has decided to follow the informational `NEP 29
 <https://numpy.org/neps/nep-0029-deprecation_policy.html>`_ which layout a clear
 policy as to which version of (C)Python and NumPy are supported.
 
 We thus dropped support for Python 3.5, and cleaned up a number of code path
-that were Python-version dependant. If you are on 3.5 or earlier pip should
+that were Python-version dependent. If you are on 3.5 or earlier pip should
 automatically give you the latest compatible version of IPython so you do not
 need to pin to a given version.
 
 Support for Prompt Toolkit 3.0
 ------------------------------
 
 Prompt Toolkit 3.0 was release a week before IPython 7.10 and introduces a few
 breaking changes. We believe IPython 7.10 should be compatible with both Prompt
 Toolkit 2.x and 3.x, though it has not been extensively tested with 3.x so
 please report any issues.
 
 
 Prompt Rendering Performance improvements
 -----------------------------------------
 
 Pull Request :ghpull:`11933` introduced an optimisation in the prompt rendering
 logic that should decrease the resource usage of IPython when using the
 _default_ configuration but could potentially introduce a regression of
 functionalities if you are using a custom prompt.
 
 We know assume if you haven't changed the default keybindings that the prompt
 **will not change** during the duration of your input – which is for example
 not true when using vi insert mode that switches between `[ins]` and `[nor]`
 for the current mode.
 
 If you are experiencing any issue let us know.
 
 Code autoformatting
 -------------------
 
 The IPython terminal can now auto format your code just before entering a new
 line or executing a command. To do so use the
 ``--TerminalInteractiveShell.autoformatter`` option and set it to ``'black'``;
 if black is installed IPython will use black to format your code when possible.
 
 IPython cannot always properly format your code; in particular it will
 auto formatting with *black* will only work if:
 
    - Your code does not contains magics or special python syntax.
 
    - There is no code after your cursor.
 
 The Black API is also still in motion; so this may not work with all versions of
 black.
 
 It should be possible to register custom formatter, though the API is till in
 flux.
 
 Arbitrary Mimetypes Handing in Terminal (Aka inline images in terminal)
 -----------------------------------------------------------------------
 
 When using IPython terminal it is now possible to register function to handle
 arbitrary mimetypes. While rendering non-text based representation was possible in
 many jupyter frontend; it was not possible in terminal IPython, as usually
 terminal are limited to displaying text. As many terminal these days provide
 escape sequences to display non-text; bringing this loved feature to IPython CLI
 made a lot of sens. This functionality will not only allow inline images; but
 allow opening of external program; for example ``mplayer`` to "display" sound
 files.
 
 So far only the hooks necessary for this are in place, but no default mime
 renderers added; so inline images will only be available via extensions. We will
 progressively enable these features by default in the next few releases, and
 contribution is welcomed.
 
 We welcome any feedback on the API. See :ref:`shell_mimerenderer` for more
-informations.
+information.
 
 This is originally based on work form in :ghpull:`10610` from @stephanh42
 started over two years ago, and still a lot need to be done.
 
 MISC
 ----
 
  - Completions can define their own ordering :ghpull:`11855`
  - Enable Plotting in the same cell than the one that import matplotlib
    :ghpull:`11916`
  - Allow to store and restore multiple variables at once :ghpull:`11930`
 
 You can see `all pull-requests <https://github.com/ipython/ipython/pulls?q=is%3Apr+milestone%3A7.10+is%3Aclosed>`_ for this release.
 
 API Changes
 -----------
 
 Change of API and exposed objects automatically detected using `frappuccino <https://pypi.org/project/frappuccino/>`_ (still in beta):
 
 The following items are new in IPython 7.10::
 
     + IPython.terminal.shortcuts.reformat_text_before_cursor(buffer, document, shell)
     + IPython.terminal.interactiveshell.PTK3
     + IPython.terminal.interactiveshell.black_reformat_handler(text_before_cursor)
     + IPython.terminal.prompts.RichPromptDisplayHook.write_format_data(self, format_dict, md_dict='None')
 
 The following items have been removed in 7.10::
 
     - IPython.lib.pretty.DICT_IS_ORDERED
 
 The following signatures differ between versions::
 
     - IPython.extensions.storemagic.restore_aliases(ip)
     + IPython.extensions.storemagic.restore_aliases(ip, alias='None')
 
 Special Thanks
 --------------
 
  - @stephanh42 who started the work on inline images in terminal 2 years ago
  - @augustogoulart who spent a lot of time triaging issues and responding to
    users.
  - @con-f-use who is my (@Carreau) first sponsor on GitHub, as a reminder if you
    like IPython, Jupyter and many other library of the SciPy stack you can
    donate to numfocus.org non profit
 
 .. _version 790:
 
 IPython 7.9.0
 =============
 
 IPython 7.9 is a small release with a couple of improvement and bug fixes.
 
  - Xterm terminal title should be restored on exit :ghpull:`11910`
  - special variables ``_``,``__``, ``___`` are not set anymore when cache size
    is 0 or less.  :ghpull:`11877`
  - Autoreload should have regained some speed by using a new heuristic logic to
    find all objects needing reload. This should avoid large objects traversal
    like pandas dataframes. :ghpull:`11876`
  - Get ready for Python 4. :ghpull:`11874`
  - `%env` Magic now has heuristic to hide potentially sensitive values :ghpull:`11896`
 
 This is a small release despite a number of Pull Request Pending that need to
 be reviewed/worked on. Many of the core developers have been busy outside of
 IPython/Jupyter and we thanks all contributor for their patience; we'll work on
 these as soon as we have time.
 
 
 .. _version780:
 
 IPython 7.8.0
 =============
 
 IPython 7.8.0 contain a few bugfix and 2 new APIs:
 
  - Enable changing the font color for LaTeX rendering :ghpull:`11840`
  - and Re-Expose some PDB API (see below)
 
 Expose Pdb API
 --------------
 
 Expose the built-in ``pdb.Pdb`` API. ``Pdb`` constructor arguments are generically
 exposed, regardless of python version.
 Newly exposed arguments:
 
 - ``skip`` - Python 3.1+
 - ``nosiginnt`` - Python 3.2+
 - ``readrc`` - Python 3.6+
 
 Try it out::
 
     from IPython.terminal.debugger import TerminalPdb
     pdb = TerminalPdb(skip=["skipthismodule"])
 
 
 See :ghpull:`11840`
 
 .. _version770:
 
 IPython 7.7.0
 =============
 
 IPython 7.7.0 contain multiple bug fixes and documentation updates; Here are a
 few of the outstanding issue fixed:
 
    - Fix a bug introduced in 7.6 where the ``%matplotlib`` magic would fail on
      previously acceptable arguments :ghpull:`11814`.
    - Fix the manage location on freebsd :ghpull:`11808`.
    - Fix error message about aliases after ``%reset`` call in ipykernel
      :ghpull:`11806`
    - Fix Duplication completions in emacs :ghpull:`11803`
 
 We are planning to adopt `NEP29 <https://github.com/numpy/numpy/pull/14086>`_
 (still currently in draft) which may make this minor version of IPython the
 last one to support Python 3.5 and will make the code base more aggressive
 toward removing compatibility with older versions of Python.
 
 GitHub now support to give only "Triage" permissions to users; if you'd like to
 help close stale issues and labels issues please reach to us with your GitHub
 Username and we'll add you to the triage team. It is a great way to start
 contributing and a path toward getting commit rights.
 
 .. _version761:
 
 IPython 7.6.1
 =============
 
 IPython 7.6.1 contain a critical bugfix in the ``%timeit`` magic, which would
 crash on some inputs as a side effect of :ghpull:`11716`. See :ghpull:`11812`
 
 
 .. _whatsnew760:
 
 IPython 7.6.0
 =============
 
 IPython 7.6.0 contains a couple of bug fixes and number of small features
 additions as well as some compatibility with the current development version of
 Python 3.8.
 
    - Add a ``-l`` option to :magic:`psearch` to list the available search
      types. :ghpull:`11672`
    - Support ``PathLike`` for ``DisplayObject`` and ``Image``. :ghpull:`11764`
    - Configurability of timeout in the test suite for slow platforms.
      :ghpull:`11756`
    - Accept any casing for matplotlib backend. :ghpull:`121748`
    - Properly skip test that requires numpy to be installed :ghpull:`11723`
    - More support for Python 3.8 and positional only arguments (pep570)
      :ghpull:`11720`
    - Unicode names for the completion are loaded lazily on first use which
      should decrease startup time. :ghpull:`11693`
    - Autoreload now update the types of reloaded objects; this for example allow
      pickling of reloaded objects. :ghpull:`11644`
    - Fix a bug where ``%%time`` magic would suppress cell output. :ghpull:`11716`
 
 
 Prepare migration to pytest (instead of nose) for testing
 ---------------------------------------------------------
 
 Most of the work between 7.5 and 7.6 was to prepare the migration from our
 testing framework to pytest. Most of the test suite should now work by simply
 issuing ``pytest`` from the root of the repository.
 
 The migration to pytest is just at its beginning. Many of our test still rely
 on IPython-specific plugins for nose using pytest (doctest using IPython syntax
 is one example of this where test appear as "passing", while no code has been
 ran). Many test also need to be updated like ``yield-test`` to be properly
 parametrized tests.
 
 Migration to pytest allowed me to discover a number of issues in our test
 suite; which was hiding a number of subtle issues – or not actually running
 some of the tests in our test suite – I have thus corrected many of those; like
 improperly closed resources; or used of deprecated features. I also made use of
 the ``pytest --durations=...`` to find some of our slowest test and speed them
 up (our test suite can now be up to 10% faster). Pytest as also a variety of
 plugins and flags which will make the code quality of IPython and the testing
 experience better.
 
 Misc
 ----
 
 We skipped the release of 7.6 at the end of May, but will attempt to get back
 on schedule. We are starting to think about making introducing backward
 incompatible change and start the 8.0 series.
 
 Special Thanks to Gabriel (@gpotter2 on GitHub), who among other took care many
 of the remaining task for 7.4 and 7.5, like updating the website.
 
 .. _whatsnew750:
 
 IPython 7.5.0
 =============
 
 IPython 7.5.0 consist mostly of bug-fixes, and documentation updates, with one
 minor new feature. The `Audio` display element can now be assigned an element
 id when displayed in browser. See :ghpull:`11670`
 
 The major outstanding bug fix correct a change of behavior that was introduce
 in 7.4.0 where some cell magics would not be able to access or modify global
 scope when using the ``@needs_local_scope`` decorator. This was typically
 encountered with the ``%%time`` and ``%%timeit`` magics. See :ghissue:`11659`
 and :ghpull:`11698`.
 
 .. _whatsnew740:
 
 IPython 7.4.0
 =============
 
 Unicode name completions
 ------------------------
 
 Previously, we provided completion for a unicode name with its relative symbol.
 With this, now IPython provides complete suggestions to unicode name symbols.
 
 As on the PR, if user types ``\LAT<tab>``, IPython provides a list of
 possible completions. In this case, it would be something like::
 
    'LATIN CAPITAL LETTER A',
    'LATIN CAPITAL LETTER B',
    'LATIN CAPITAL LETTER C',
    'LATIN CAPITAL LETTER D',
    ....
 
 This help to type unicode character that do not have short latex aliases, and
 have long unicode names. for example ``Ͱ``, ``\GREEK CAPITAL LETTER HETA``.
 
 This feature was contributed by Luciana Marques :ghpull:`11583`.
 
 Make audio normalization optional
 ---------------------------------
 
 Added 'normalize' argument to `IPython.display.Audio`. This argument applies
 when audio data is given as an array of samples. The default of `normalize=True`
 preserves prior behavior of normalizing the audio to the maximum possible range.
 Setting to `False` disables normalization.
 
 
 Miscellaneous
 -------------
 
  - Fix improper acceptation of ``return`` outside of functions. :ghpull:`11641`.
  - Fixed PyQt 5.11 backwards incompatibility causing sip import failure.
    :ghpull:`11613`.
  - Fix Bug where ``type?`` would crash IPython. :ghpull:`1608`.
  - Allow to apply ``@needs_local_scope`` to cell magics for convenience.
    :ghpull:`11542`.
 
 .. _whatsnew730:
 
 IPython 7.3.0
 =============
 
 
 IPython 7.3.0 bring several bug fixes and small improvements that you will
-described bellow. 
+described below.
 
 The biggest change to this release is the implementation of the ``%conda`` and
 ``%pip`` magics, that will attempt to install packages in the **current
 environment**. You may still need to restart your interpreter or kernel for the
 change to be taken into account, but it should simplify installation of packages
 into remote environment. Installing using pip/conda from the command line is
 still the prefer method.
 
 The ``%pip`` magic was already present, but was only printing a warning; now it
 will actually forward commands to pip. 
 
 Misc bug fixes and improvements:
 
  - Compatibility with Python 3.8.
  - Do not expand shell variable in execution magics, and added the
    ``no_var_expand`` decorator for magic requiring a similar functionality
    :ghpull:`11516`
  - Add ``%pip`` and ``%conda`` magic :ghpull:`11524`
  - Re-initialize posix aliases after a ``%reset`` :ghpull:`11528`
  - Allow the IPython command line to run ``*.ipynb`` files :ghpull:`11529`
 
 .. _whatsnew720:
    
 IPython 7.2.0
 =============
 
 IPython 7.2.0 brings minor bugfixes, improvements, and new configuration options:
 
  - Fix a bug preventing PySide2 GUI integration from working :ghpull:`11464`
  - Run CI on Mac OS ! :ghpull:`11471`
  - Fix IPython "Demo" mode. :ghpull:`11498`
  - Fix ``%run`` magic  with path in name :ghpull:`11499`
  - Fix: add CWD to sys.path *after* stdlib :ghpull:`11502`
  - Better rendering of signatures, especially long ones. :ghpull:`11505`
  - Re-enable jedi by default if it's installed :ghpull:`11506`
  - Add New ``minimal`` exception reporting mode (useful for educational purpose). See :ghpull:`11509`
 
 
 Added ability to show subclasses when using pinfo and other utilities
 ---------------------------------------------------------------------
 
 When using ``?``/``??`` on a class, IPython will now list the first 10 subclasses.
 
 Special Thanks to Chris Mentzel of the Moore Foundation for this feature. Chris
 is one of the people who played a critical role in IPython/Jupyter getting
 funding.
 
 We are grateful for all the help Chris has given us over the years,
 and we're now proud to have code contributed by Chris in IPython.
 
 OSMagics.cd_force_quiet configuration option
 --------------------------------------------
 
 You can set this option to force the %cd magic to behave as if ``-q`` was passed::
 
     In [1]: cd /
     /
 
     In [2]: %config OSMagics.cd_force_quiet = True
 
     In [3]: cd /tmp
 
     In [4]:
 
 See :ghpull:`11491`
 
 In vi editing mode, whether the prompt includes the current vi mode can now be configured
 -----------------------------------------------------------------------------------------
 
 Set the ``TerminalInteractiveShell.prompt_includes_vi_mode`` to a boolean value
 (default: True) to control this feature. See :ghpull:`11492`
 
 .. _whatsnew710:
 
 IPython 7.1.0
 =============
 
 IPython 7.1.0 is the first minor release after 7.0.0 and mostly brings fixes to
 new features, internal refactoring, and fixes for regressions that happened during the 6.x->7.x
 transition. It also brings **Compatibility with Python 3.7.1**, as we're
 unwillingly relying on a bug in CPython.
 
 New Core Dev:
 
- - We welcome Jonathan Slenders to the commiters. Jonathan has done a fantastic
+ - We welcome Jonathan Slenders to the committers. Jonathan has done a fantastic
    work on prompt_toolkit, and we'd like to recognise his impact by giving him
    commit rights. :ghissue:`11397`
 
 Notable Changes
 
  - Major update of "latex to unicode" tab completion map (see below)
 
 Notable New Features:
 
  - Restore functionality and documentation of the **sphinx directive**, which
    is now stricter (fail on error by daefault), has new configuration options,
    has a brand new documentation page :ref:`ipython_directive` (which needs
    some cleanup). It is also now *tested* so we hope to have less regressions.
    :ghpull:`11402`
 
  - ``IPython.display.Video`` now supports ``width`` and ``height`` arguments,
    allowing a custom width and height to be set instead of using the video's
    width and height. :ghpull:`11353`
 
  - Warn when using ``HTML('<iframe>')`` instead of ``IFrame`` :ghpull:`11350`
 
  - Allow Dynamic switching of editing mode between vi/emacs and show
    normal/input mode in prompt when using vi. :ghpull:`11390`. Use ``%config
    TerminalInteractiveShell.editing_mode = 'vi'`` or ``%config
    TerminalInteractiveShell.editing_mode = 'emacs'`` to dynamically switch
    between modes.
 
 
 Notable Fixes:
 
  - Fix entering of **multi-line blocks in terminal** IPython, and various
    crashes in the new input transformation machinery :ghpull:`11354`,
    :ghpull:`11356`, :ghpull:`11358`. These also fix a **Compatibility bug
    with Python 3.7.1**.
 
  - Fix moving through generator stack in ipdb :ghpull:`11266`
 
  - %Magic command arguments now support quoting. :ghpull:`11330`
 
  - Re-add ``rprint`` and ``rprinte`` aliases. :ghpull:`11331`
 
  - Remove implicit dependency on ``ipython_genutils`` :ghpull:`11317`
 
  - Make ``nonlocal`` raise ``SyntaxError`` instead of silently failing in async
    mode. :ghpull:`11382`
 
  - Fix mishandling of magics and ``= !`` assignment just after a dedent in
    nested code blocks :ghpull:`11418`
 
  - Fix instructions for custom shortcuts :ghpull:`11426`
 
 
 Notable Internals improvements:
 
  - Use of ``os.scandir`` (Python 3 only) to speed up some file system operations.
    :ghpull:`11365`
 
  - use ``perf_counter`` instead of ``clock`` for more precise
    timing results with ``%time`` :ghpull:`11376`
 
 Many thanks to all the contributors and in particular to ``bartskowron`` and
 ``tonyfast`` who handled some pretty complicated bugs in the input machinery. We
 had a number of first time contributors and maybe hacktoberfest participants that
 made significant contributions and helped us free some time to focus on more
 complicated bugs.
 
 You
 can see all the closed issues and Merged PR, new features and fixes `here
 <https://github.com/ipython/ipython/issues?utf8=%E2%9C%93&q=+is%3Aclosed+milestone%3A7.1+>`_.
 
 Unicode Completion update
 -------------------------
 
 In IPython 7.1 the Unicode completion map has been updated and synchronized with
 the Julia language.
 
 Added and removed character characters:
 
  ``\jmath`` (``ȷ``), ``\\underleftrightarrow`` (U+034D, combining) have been
  added, while ``\\textasciicaron`` have been removed
 
 Some sequences have seen their prefix removed:
 
  - 6 characters ``\text...<tab>`` should now be inputed with ``\...<tab>`` directly,
  - 45 characters ``\Elz...<tab>`` should now be inputed with ``\...<tab>`` directly,
  - 65 characters ``\B...<tab>`` should now be inputed with ``\...<tab>`` directly,
  - 450 characters ``\m...<tab>`` should now be inputed with ``\...<tab>`` directly,
 
 Some sequences have seen their prefix shortened:
 
  - 5 characters ``\mitBbb...<tab>`` should now be inputed with ``\bbi...<tab>`` directly,
  - 52 characters ``\mit...<tab>`` should now be inputed with ``\i...<tab>`` directly,
  - 216 characters ``\mbfit...<tab>`` should now be inputed with ``\bi...<tab>`` directly,
  - 222 characters ``\mbf...<tab>`` should now be inputed with ``\b...<tab>`` directly,
 
 A couple of characters had their sequence simplified:
 
  - ``ð``, type ``\dh<tab>``, instead of ``\eth<tab>``
  - ``ħ``, type ``\hbar<tab>``, instead of ``\Elzxh<tab>``
  - ``ɸ``, type ``\ltphi<tab>``, instead of ``\textphi<tab>``
  - ``ϴ``, type ``\varTheta<tab>``, instead of ``\textTheta<tab>``
  - ``ℇ``, type ``\eulermascheroni<tab>``, instead of ``\Eulerconst<tab>``
  - ``ℎ``, type ``\planck<tab>``, instead of ``\Planckconst<tab>``
 
  - U+0336 (COMBINING LONG STROKE OVERLAY), type ``\strike<tab>``, instead of ``\Elzbar<tab>``.
 
 A couple of sequences have been updated:
 
  - ``\varepsilon`` now gives ``ɛ`` (GREEK SMALL LETTER EPSILON) instead of ``ε`` (GREEK LUNATE EPSILON SYMBOL),
  - ``\underbar`` now gives U+0331 (COMBINING MACRON BELOW) instead of U+0332 (COMBINING LOW LINE).
 
 
 .. _whatsnew700:
 
 IPython 7.0.0
 =============
 
 Released Thursday September 27th, 2018
 
 IPython 7 includes major feature improvements.
 This is also the second major version of IPython to support only
 Python 3 – starting at Python 3.4. Python 2 is still community-supported
 on the bugfix only 5.x branch, but we remind you that Python 2 "end of life"
 is on Jan 1st 2020.
 
 We were able to backport bug fixes to the 5.x branch thanks to our backport bot which
 backported more than `70 Pull-Requests
 <https://github.com/ipython/ipython/pulls?page=3&q=is%3Apr+sort%3Aupdated-desc+author%3Aapp%2Fmeeseeksdev++5.x&utf8=%E2%9C%93>`_, but there are still many PRs that required manual work. This is an area of the project where you can easily contribute by looking for `PRs that still need manual backport <https://github.com/ipython/ipython/issues?q=label%3A%22Still+Needs+Manual+Backport%22+is%3Aclosed+sort%3Aupdated-desc>`_
 
 The IPython 6.x branch will likely not see any further release unless critical
 bugs are found.
 
 Make sure you have pip > 9.0 before upgrading. You should be able to update by running:
 
 .. code::
 
     pip install ipython --upgrade
 
 .. only:: ipydev
 
   If you are trying to install or update an ``alpha``, ``beta``, or ``rc``
   version, use pip ``--pre`` flag.
 
   .. code::
 
       pip install ipython --upgrade --pre
 
 
 Or, if you have conda installed: 
 
 .. code::
    
    conda install ipython
 
 
 
 Prompt Toolkit 2.0
 ------------------
 
 IPython 7.0+ now uses ``prompt_toolkit 2.0``. If you still need to use an earlier
 ``prompt_toolkit`` version, you may need to pin IPython to ``<7.0``.
 
 Autowait: Asynchronous REPL
 ---------------------------
 
 Staring with IPython 7.0 on Python 3.6+, IPython can automatically ``await``
 top level code. You should not need to access an event loop or runner
 yourself. To learn more, read the :ref:`autoawait` section of our docs, see
 :ghpull:`11265`, or try the following code::
 
     Python 3.6.0
     Type 'copyright', 'credits' or 'license' for more information
     IPython 7.0.0 -- An enhanced Interactive Python. Type '?' for help.
 
     In [1]: import aiohttp
        ...: result = aiohttp.get('https://api.github.com')
 
     In [2]: response = await result
     <pause for a few 100s ms>
 
     In [3]: await response.json()
     Out[3]:
     {'authorizations_url': 'https://api.github.com/authorizations',
      'code_search_url': 'https://api.github.com/search/code?q={query}{&page,per_page,sort,order}',
     ...
     }
 
 .. note::
 
    Async integration is experimental code, behavior may change or be removed
    between Python and IPython versions without warnings.
 
 Integration is by default with `asyncio`, but other libraries can be configured --
 like ``curio`` or ``trio`` -- to improve concurrency in the REPL::
 
     In [1]: %autoawait trio
 
     In [2]: import trio
 
     In [3]: async def child(i):
        ...:     print("   child %s goes to sleep"%i)
        ...:     await trio.sleep(2)
        ...:     print("   child %s wakes up"%i)
 
     In [4]: print('parent start')
        ...: async with trio.open_nursery() as n:
        ...:     for i in range(3):
        ...:         n.spawn(child, i)
        ...: print('parent end')
     parent start
        child 2 goes to sleep
        child 0 goes to sleep
        child 1 goes to sleep
        <about 2 seconds pause>
        child 2 wakes up
        child 1 wakes up
        child 0 wakes up
     parent end
 
 See :ref:`autoawait` for more information.
 
 
 Asynchronous code in a Notebook interface or any other frontend using the
 Jupyter Protocol will require further updates to the IPykernel package.
 
 Non-Asynchronous code
 ~~~~~~~~~~~~~~~~~~~~~
 
 As the internal API of IPython is now asynchronous, IPython needs to run under
 an event loop. In order to allow many workflows, (like using the :magic:`%run`
 magic, or copy-pasting code that explicitly starts/stop event loop), when
 top-level code is detected as not being asynchronous, IPython code is advanced
 via a pseudo-synchronous runner, and may not advance pending tasks.
 
 Change to Nested Embed
 ~~~~~~~~~~~~~~~~~~~~~~
 
 The introduction of the ability to run async code had some effect on the
 ``IPython.embed()`` API. By default, embed will not allow you to run asynchronous
 code unless an event loop is specified.
 
 Effects on Magics
 ~~~~~~~~~~~~~~~~~
 
 Some magics will not work with async until they're updated.
 Contributions welcome.
 
 Expected Future changes
 ~~~~~~~~~~~~~~~~~~~~~~~
 
 We expect more internal but public IPython functions to become ``async``, and
 will likely end up having a persistent event loop while IPython is running.
 
 Thanks
 ~~~~~~
 
 This release took more than a year in the making.
 The code was rebased a number of
 times; leading to commit authorship that may have been lost in the final
 Pull-Request. Huge thanks to many people for contribution, discussion, code,
 documentation, use-cases: dalejung, danielballan, ellisonbg, fperez, gnestor,
 minrk, njsmith, pganssle, tacaswell, takluyver , vidartf ... And many others.
 
 
 Autoreload Improvement
 ----------------------
 
 The magic :magic:`%autoreload 2 <autoreload>` now captures new methods added to
 classes. Earlier, only methods existing as of the initial import were being
 tracked and updated.  
 
 This new feature helps dual environment development - Jupyter+IDE - where the
 code gradually moves from notebook cells to package files as it gets
 structured.
 
 **Example**: An instance of the class ``MyClass`` will be able to access the
 method ``cube()`` after it is uncommented and the file ``file1.py`` is saved on
 disk.
 
 
 .. code::
 
    # notebook
 
    from mymodule import MyClass
    first = MyClass(5)
 
 .. code::
 
    # mymodule/file1.py
 
    class MyClass:
 
        def __init__(self, a=10):
            self.a = a
 
        def square(self):
            print('compute square')
            return self.a*self.a
 
        # def cube(self):
        #     print('compute cube')
        #     return self.a*self.a*self.a
 
 
 
 
 Misc
 ----
 
 The autoindent feature that was deprecated in 5.x was re-enabled and
 un-deprecated in :ghpull:`11257`
 
 Make :magic:`%run -n -i ... <run>` work correctly. Earlier, if :magic:`%run` was
 passed both arguments, ``-n`` would be silently ignored. See :ghpull:`10308`
 
 
 The :cellmagic:`%%script` (as well as :cellmagic:`%%bash`,
 :cellmagic:`%%ruby`... ) cell magics now raise by default if the return code of
 the given code is non-zero (thus halting execution of further cells in a
 notebook). The behavior can be disable by passing the ``--no-raise-error`` flag.
 
 
 Deprecations
 ------------
 
 A couple of unused functions and methods have been deprecated and will be removed
 in future versions:
 
   - ``IPython.utils.io.raw_print_err``
   - ``IPython.utils.io.raw_print``
 
   
 Backwards incompatible changes
 ------------------------------
 
 * The API for transforming input before it is parsed as Python code has been
   completely redesigned: any custom input transformations will need to be
   rewritten. See :doc:`/config/inputtransforms` for details of the new API.

docs/source/whatsnew/version8.rst

@@ -1,2397 +1,2397
 ============
  8.x Series
 ============
 .. _version 8.28:
 
 IPython 8.28
 ============
 
 Slight delay of this September release as I was busy at Pydata Paris last week.
 Not many user visible changes for this release, a couple of bug fixes and
 workaround:
 
  - :ghpull:`14480` AssertionError: assert _xterm_term_title_saved in WSL – It is
    unclear why the terminal title is not saved in WSL, if you've WSL experience
    we'd love your feedback and help to not just ignore an error
  - :ghpull:`14510` Fix use of pyside6 >= 6.7.0
  - :ghpull:`14518` Make values public (_tb_highlight & _tb_highlight_style)
  - :ghpull:`14515` Use environment variable to identify conda / mamba
 
 
 As usual you can find the full list of PRs on GitHub under `the 8.28
 <https://github.com/ipython/ipython/milestone/135?closed=1>`__ milestone.
 
 For something completely different
 ----------------------------------
 
 One of the first works of Science Fiction (`Frankenstein
 <https://en.wikipedia.org/wiki/Frankenstein>`__), was written by `Mary Shelley
 <https://en.wikipedia.org/wiki/Mary_Shelley>`__ when she was 18, before being
 published in London on 1 January 1818 when she was 20. This is often overlooked,
 and the role of founders of science fiction attribute to Edgar Allan Poe and
 Jules Verne despite being published later.
 
 Thanks
 ------
 
 Thanks as well to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 8.27:
 
 IPython 8.27
 ============
 
 New release of IPython after a month off (not enough changes). We can see a few
 important changes for this release.
 
- - autocall was beeing  call getitem, :ghpull:`14486`
+ - autocall was being  call getitem, :ghpull:`14486`
  - Only copy files in startup dir if we just created it. :ghpull:`14497`
  - Fix some tests on Python 3.13 RC1 :ghpull:`14504`; this one I guess make this
    the first IPython release officially compatible with Python 3.13; you will
    need the most recent ``executing`` and ``stack_data``, we won't pin to avoid
    forcing user of older Python version to upgrade.
 
 
 As usual you can find the full list of PRs on GitHub under `the 8.27
 <https://github.com/ipython/ipython/milestone/134?closed=1>`__ milestone.
 
 Thanks
 ------
 
 Many thanks to `@Kleirre <https://github.com/Kleirre>`__ our June intern for
 doing her first contribution to open source, doing the releases notes and
 release. I guess you didn't even notice it was not me who released :-). I wish
 her all the best in her future endeavor and look forward for her work in
 astrophysics.
 
 Thanks as well to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 .. _version 8.26:
 
 IPython 8.26
 ============
 
 Hey, the release of IPython for this month is here! (I know you were waiting for it)
 
 - :ghpull:`14453` bugfix for call to structured_traceback
 
 - :ghpull:`14466` fixed honoring custom repr for NamedTuple if assigned by partialmethod
 
 - :ghpull:`14451` Convert matplotlib gui name in enable_gui
 
 As usual you can find the full list of PRs on GitHub under `the 8.26
 <https://github.com/ipython/ipython/milestone/133?closed=1>`__ milestone.
 
 Thanks
 ------
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 8.25:
 
 IPython 8.25
 ============
 
 Mostly internal changes for this end of may release of IPython.
 
 We'll count about a dozen PRs for this moth, with small bugfixes related to
 matplotlib fixes.
 
 Of notable interest,
 
  - :ghpull:`14426` replaces the unicode micro symbol with greek letter mu,
    visually identical but should fix nfkc normalisations issues.
 
  - :ghpull:`14444` introduces ``intersphinx_registry``  as a new dependency
    which is recommended only to build documentation.
 
 As usual you can find the full list of PRs on GitHub under `the 8.25
 <https://github.com/ipython/ipython/milestone/132?closed=1>`__ milestone.
 
 Thanks
 ------
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 8.24:
 
 IPython 8.24
 ============
 
 Back on regular release schedule, as usual month releases are relatively tiny.
 
 The biggest change is the move of the matplotlib backend handling from IPython
 to matplotlib. :ghpull:`14371` :ghpull:`14403`.
 
 We will note:
 
  - pytest 8 compatibility :ghpull:`14413`
  - ``typing-extension`` now needs 4.6 or newer. It was already the case, but not
    explicated. :ghpull:`14380`
  - Attempt to speed running code under debugger in some cases. :ghpull:`14386`
    :ghpull:`14418`.
  - Multiple fixes to documentation for ipyparallel, simple_prompt and emacs
    :ghpull:`14384` :ghpull:`14404` :ghpull:`14407`
  - Maintenance and cleanup of debugger :ghpull:`14387` :ghpull:`14393`
 
 As usual you can find the full list of PRs on GitHub under `the 8.24
 <https://github.com/ipython/ipython/milestone/131?closed=1>`__ milestone.
 
 Thanks
 ------
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 8.23:
 
 IPython 8.23
 ============
 
 Super tiny release of IPython on Sunday – a bit later than usual, which is also
 `🏳️‍⚧️ International Transgender Day of Visibility🏳️‍⚧️
 <https://en.wikipedia.org/wiki/International_Transgender_Day_of_Visibility>`_ –
 so a though for you on this day, you matter and you are valid [1]_.
 
 This is a minuscule release with only 5 Pull requests.
 
 Main change is :ghpull:`14357` which improve inference from return type
 annotations in completer and the introduction of the optional target
 ``ipython[matplotlib]`` to explicitly request the matplotlib optional
 dependencies.
 
 As usual you can find the full list of PRs on GitHub under `the 8.23
 <https://github.com/ipython/ipython/milestone/130?closed=1>`__ milestone.
 
 Thanks
 ------
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 8.22:
 
 IPython 8.22, 8.22.1 and 8.22.2
 ===============================
 
 Quick release of IPython for this short month of February, with quite a bit of
 activity with more than 15 PRs.
 
 I am not going to details all the changes, but among other we have :
 
  - More compatibility with emscripten :ghpull:`14316`, :ghpull:`14318`,
  - Test more downstream project to avoid breakage :ghpull:`14317`
  - Fix recently introduced bug with the ``store`` magic.
  - Fix issues with multiple call to ``matplotlib.pyplot.switch_backend``
  - Fix crashing IPython when some tracebacks encounter dynamically evaluated
    code.
 
 IPython 8.22.1 increase the minimal traitlets version, and 8.22.2 fix a critical
 bug on emscripten  preventing to use some magics like ``%matplotlib`` on
 jupyter-light.
 
 API changes
 -----------
 
 One of the largest change is the update the mimehooks and inspector API, see
 :ghpull:`14342`. It should be backward compatible, but many hooks now receive a
 single object with many fields allowing us flexibility to update the API later.
 
 
 Packaging changes
 -----------------
 
 Thanks to `@mkoppe <https://github.com/mkoeppe>`__, we are slowly getting rid of
 setup.py finally migrating to ``pyproject.toml``. There is still quite a bit of
 work, and please open an issue if you encounter any problem.
 
 
 Deprecation
 -----------
 
 A number of unused functions have been marked deprecated or pending deprecation.
 Please let us know if you encounter any of those deprecation messages for us to
 adjust the removal timeline.
 
 
 Thanks
 ------
 
 Many thanks to `@mkoppe <https://github.com/mkoeppe>`__ and `@krassowski
 <https://github.com/krassowski>`__ for their multiple contributions and codebase
 cleanup.
 
 As usual you can find the full list of PRs on GitHub under `the 8.22
 <https://github.com/ipython/ipython/milestone/129?closed=1>`__ milestone.
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 8.21:
 
 IPython 8.21
 ------------
 
 More substantial release of IPython slightly out of schedule as it was not
 possible for me to make a release last Friday.
 
 Few new features are present, but the codebase has been cleaned, and a couple
 of API are _considered_ for deprecation. They are not deprecated yet, but as
 they do not seem to be quite used, they may emit a warning, in which case please
 comment on the relevant issue to inform me of _which_ project use those feature
 and how you use them. Depending on the feedback I might change the timeline for
 deprecation.
 
 This release saw 14 PRs, with more outside contribution than usual,
 I'll note in particular PRs related to making IPython work on emscripten.
 
 I also want to point that we are _trying_ to keep compatibility with Python 3.13,
 but it's a cat and mouse game. Plus I am low on time, so I would appreciate any
 help with that.
 
 Deprecations
 ~~~~~~~~~~~~
 
  - :ghpull:`14307` Pending Deprecation of
    ``ColorSchemeTable.set_active_scheme(...)``'s ``case_sensitive`` Parameter.
  - :ghpull:`14305` Pending Deprecation of constructing ``ColorScheme`` via
    ``kwargs``, in favor passing a single dict.
 
 
 Fixes
 ~~~~~
 
  - :ghpull:`14284` TerminalIPythonApp's would warn that ``auto_create`` option is not
    recognized.
  - :ghpull:`14286` Fix a crash with ``NotOneValueFound`` when rendering complex
    tracebacks.
 
  - :ghpull:`14287` Partial Python 3.13 compatibility
  - :ghpull:`14290` Docs/Typos.
 
 Changes
 ~~~~~~~
 
  - :ghpull:`14289` ``ipdb.set_trace()`` now accepts ``header=`` for better
    compatibility with ``pdb.set_trace()``
 
  - :ghpull:`14300` and :ghpull:`14301` Add hooking ability to produce
    mimebundle.
 
 We'll outline :ghpull:`14300`, it is now possible to extend the ``?/??``
 operator to return more mimetypes to render richer help in frontends that
 support it. In particular you could send a json representation of the help that
 could be displayed in a customizable way.
 
 Miscellaneous
 ~~~~~~~~~~~~~
 
  - :ghpull:`14291` Misc Refactor of Color handling
  - :ghpull:`14295` Misc test skip on problematic Pypy versions.
 
 
 Thanks
 ~~~~~~
 
 Special thanks to all our contributors, and to the Pypy team that was extremely
 reactive in helping to investigate a fixing a rare unicode+windows bug.
 
 As usual you can find the full list of PRs on GitHub under `the 8.21
 <https://github.com/ipython/ipython/milestone/128?closed=1>`__ milestone.
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 8.20:
 
 IPython 8.20
 ------------
 
 Quick IPython release in this beginning of 2024, barely 2 weeks after the previous
 release.
 
 This is mostly to fix a backward compatibility issue, I would have done a  patch
 release earlier if I could. As a few other cleanup are also part of this
 release, this will get a minor version bump.
 
 
 The crux of this release is :ghpull:`14274` (Inspect continuation prompt
 signature and pass only viable arguments), the rest of the changes are mostly
 type annotation, and a few compatibility issues with Python 3.13 that are
 getting addressed.
 
 Python 3.13 compatibility is still not complete (help welcomed).
 
 As usual you can find the full list of PRs on GitHub under `the 8.20
 <https://github.com/ipython/ipython/milestone/127?closed=1>`__ milestone.
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 8.19:
 
 IPython 8.19
 ------------
 
 New release of IPython a bit before the end of the month, and end of the year.
 
 Mostly cleanup and deprecation, due to upstream deprecation and removal.
 
 Remove of Python 3.9 support
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 A bit later than originally plan, IPython 8.19 does not support Python 3.9
 anymore, as well as the few conditional code that were executing only on Python
 3.9. :ghpull:`14254`
 
 We used the opportunity to deprecate ``IPython.utils.tz`` :ghpull:`14256`, due
 to upstream deprecation of some timezone utilities. It will be removed at a later
 date.
 
 We now also run CI on Python 3.12 (what I likely should have done before), but
 running on too many Python version uses a lot of CI time.
 
 Absolute and relative Line Numbers in Prompts
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Thanks to the contribution of ``cohml``, IPython CLI now support absolute and
 relative line numbers in both vi and emacs prompt, use for example
 ``c.TerminalInteractiveShell.prompt_line_number_format='{line: 4d}/{rel_line:+03d} | '``
 configuration option to display both in a custom format.
 
 Miscellaneous
 ~~~~~~~~~~~~~
 
 In addition to various bugfixes, I unpinned pytest, let me know if there are any
 issues and we'll re-pin.
 
 See you in 2024
 ~~~~~~~~~~~~~~~
 
 As usual you can find the full list of PRs on GitHub under `the 8.19
 <https://github.com/ipython/ipython/milestone/126?closed=1>`__ milestone.
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 .. _version 8.18:
 
 IPython 8.18 and 8.18.1
 -----------------------
 
 8.18.1 is identical to 8.18 but pin ``prompt_toolkit`` to greater than ``3.0.41``
 
 Small release of IPython that fixes a small number of inconveniences.
 
  - :ghpull:`14251` Fix a memory leak in qt event loop integration by setting
    the Loop parent to None.
  - :ghpull:`14252` Pickleshare was made an optional dependency in 8.17, this
    leads to warnings in some installations when using modules completions. The
    warning has been silenced.
  - :ghpull:`14241` Update event loop code for compatibility with more recent
    ``prompt_toolkit`` due to deprecations in Python 3.12.
  - :ghpull:`14245` Fix doc example on Pygments styles
  - :ghpull:`14238` Remove dependency on app_nope, this is actually only a
    dependency of IPykernel.
 
 As usual you can find the full list of PRs on GitHub under `the 8.18
 <https://github.com/ipython/ipython/milestone/125?closed=1>`__ milestone.
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 .. _version 8.17.1:
 .. _version 8.17:
 
 IPython 8.17, 8.17.1
 --------------------
 
 Medium-sized release of IPython that includes some cleanup (backcall, python2 leftovers)
 and some refactoring improvements (typing, pathlib) and a fix on completion.
 
   - :ghpull:`14216` remove backcall dependency
   - :ghpull:`14217` make pickleshare dependency optional
   - :ghpull:`14185` support completion based on type annotations of calls
 
 Reverted in 8.17.1:
 
   - :ghpull:`14190` remove support for python 2 in lexers (reverted in 8.17.1 as it is imported by qtconsole/spyder)
 
 
 Mamba and Micromamba magic commands
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 In addition to the ``%conda`` magic command for calling ``conda`` in IPython,
 the ``%mamba`` and ``%micromamba`` magic commands now
 call ``mamba`` and ``micromamba`` if they are on ``sys.path``.
 
 .. code::
 
    %mamba install pkgname
    %micromamba install pkgname
    %conda install pkgname
    %pip install pkgname
 
    %mamba --help
    %micromamba --help
    %conda --help
    %pip --help    # works w/ JupyterLite
    !pip --help
 
 
 :ghpull:`14191`
 
 ----
 
 As usual you can find the full list of PRs on GitHub under `the 8.17
 <https://github.com/ipython/ipython/milestone/123?closed=1>`__ milestone.
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 .. _version 8.16:
 .. _version 8.16.1:
 
 IPython 8.16, 8.16.1
 --------------------
 
 Small double release of IPython (with the 8.12.3 release notes just below).
 Mostly bug fixes and cleanups, and type annotations. Of interest for users:
 
  - :ghpull:`14153` Fix a bug of the new iPdb chained traceback where some
    Exception would not have any traceback. (see upstream fix in CPython for more
    details).
  - :ghpull:`14168` Fix case with spurious message about event loops when using
    matplotlib.
 
 This PR is in 8.16.0 but reverted in 8.16.1, we'll  rework the fix for 8.17
 
  - :ghpull:`14163` Fix an error where semicolon would not suppress output.
 
 As usual you can find the full list of PRs on GitHub under `the 8.16
 <https://github.com/ipython/ipython/milestone/121?closed=1>`__ and `8.16.1 milestone
 <https://github.com/ipython/ipython/milestone/124?closed=1>`__.
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 .. _version 8.12.3:
 
 IPython 8.12.3
 --------------
 
 Tiny release of 8.12.3 that backport a small number of fixes for users still
 using Python 3.8.
 
  - :ghpull:`14080` add passthrough filter shortcuts
  - :ghpull:`14169` Fix `InteractiveShellEmbed`
 
 .. _version 8.15:
 
 IPython 8.15
 ------------
 
 Medium release of IPython after a couple of month hiatus, and a bit
 off-schedule.
 
 Among other, IPython 8.15:
 
  - Improve compatibility with future version of Python 3.12/3.13
    :ghpull:`14107`, :ghpull:`14139`,
  - Improve support for ``ExceptionGroups``, :ghpull:`14108`
  - Fix hangs in ``%gui osx``, :ghpull:`14125`
  - Fix memory lead with ``%reset``, :ghpull:`14133`
  - Unstable config option to modify traceback highlighting that is sometime hard
    to read :ghpull:`14138`
  - Support ``.`` in ``ipdb`` as an argument to the ``list`` command
    :ghpull:`14121`
  - Workroud ``parso`` showing warning message when the default logger level is
    changed :ghpull:`14119`
  - Fix multiple issues with matplotlib interactive mode, qt5/qt6 :ghpull:`14128`
 
 Support for PEP-678 Exception Notes
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Ultratb now shows :pep:`678` notes, improving your debugging experience on
 Python 3.11+ or with libraries such as Pytest and Hypothesis.
 
 Native fallback for displaying ExceptionGroup
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 ExceptionGroups are now displayed with ``traceback.print_exc``, as a temporary fix until UltraTB properly supports displaying child exceptions.
 
 
 We have two larger features:
 
 AST-based macros
 ~~~~~~~~~~~~~~~~
 
 :ghpull:`14100` introduce a new and efficient way to modify each execution block
 (cell) using an template-ast-based transform. Unlike IPython pre and post code
 execution hooks, this actually transform the code that is execute with as
 minimal as possible overhead. While it was already technically possible to
 register ast transformers for IPython this was far from evident.
 
 This should make it trivial to hook into IPython to implement custom hooks, that
 for example time or profile your code, catch exceptions to provide error
 messages for students or do any other kind of transformations.
 
 In addition to programmatic API there is also a magic to quickly register
 hooks::
 
    In [1]: %%code_wrap before_after
       ...: print('before')
       ...: __code__
       ...: print('after')
       ...: __ret__
 
 This mean that  for any subsequent execution code will be executed.
 You can modify the above to print the date, compute the execution time,
 retry the code in a for loop....
 
 
 Allow IPdb/Pdb to move between chained exceptions
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 The main change is the addition of the ability to move between chained
 exceptions when using IPdb, this feature was also contributed to upstream Pdb
 and is thus native to CPython in Python 3.13+ Though ipdb should support this
 feature in older version of Python. I invite you to look at the `CPython changes
 and docs <https://github.com/python/cpython/pull/106676>`__ for more details.
 
 In short, once in post-mortem debugger (``%debug``), you can use the ipdb
 ``exceptions`` command to switch exceptions, for example:
 
 .. code-block:: ipython
 
     In [1]: def foo(x):
         ...:     try:
         ...:         bar(x)
         ...:     except Exception as e:
         ...:         raise ValueError("foo (): bar failed") from e
         ...:
         ...: def bar(x):
         ...:     1 / X
         ...:
 
     In [2]: foo(0)
     ---------------------------------------------------------------------------
     NameError                                 Traceback (most recent call last)
     Cell In[1], line 3, in foo(x)
           2 try:
     ----> 3     bar(x)
           4 except Exception as e:
 
     Cell In[1], line 9, in bar(x)
           8 def bar(x):
     ----> 9     1 / X
 
     NameError: name 'X' is not defined
 
     The above exception was the direct cause of the following exception:
 
     ValueError                                Traceback (most recent call last)
     Cell In[2], line 1
     ----> 1 foo(0)
 
     Cell In[1], line 5, in foo(x)
           3     bar(x)
           4 except Exception as e:
     ----> 5     raise ValueError("foo (): bar failed") from e
 
     ValueError: foo (): bar failed
 
     In [3]: %debug
     > <ipython-input-1-b0bbdc271ffb>(5)foo()
           3         bar(x)
           4     except Exception as e:
     ----> 5         raise ValueError("foo (): bar failed") from e
 
 In previous ipdb you could not go into the bar error, now from within pdb you
 can use ``exceptions``:
 
 .. code-block:: ipython
 
     ipdb> exceptions
         0 NameError("name 'X' is not defined")
     >   1 ValueError('foo (): bar failed')
 
     ipdb> exceptions 0
     > <ipython-input-1-b0bbdc271ffb>(9)bar()
           6
           7
           8 def bar(x):
     ----> 9     1 / X
          10
 
     ipdb>
 
 In particular I want to thank the `D.E. Shaw group <https://www.deshaw.com/>`__
 for suggesting and funding the two largest feature as well as many bug fixes of
 this release.
 
 As usual you can find the full list of PRs on GitHub under `the 8.15 milestone
 <https://github.com/ipython/ipython/milestone/120?closed=1>`__.
 
 
 
 .. _version 8.14:
 
 IPython 8.14
 ------------
 
 Small release of IPython.
 
  - :ghpull:`14080` fixes some shortcuts issues.
  - :ghpull:`14056` Add option to ``%autoreload`` to hide errors when reloading code. This will be the default for spyder
    user is my understanding.
  - :ghpull:`14039` (and :ghpull:`14040`) to show exception notes in tracebacks.
 
  - :ghpull:`14076` Add option to EventManager to prevent printing
 
 
 SPEC 0 and SPEC 4
 ~~~~~~~~~~~~~~~~~
 
 You've heard about the NEPs, (NumPy enhancement Proposal), having a NEP for something non-numpy specific was sometime confusing.
 Long live the `SPECs <https://scientific-python.org/specs/>`_.
 
 We are now trying to follow SPEC 0 (aka old NEP 29) for support of upstream libraries.
 
 We also now try to follow SPEC 4 (test and publish nightly on a centralized nightly repository).
 We encourage you to do so as well in order to report breakage, and contribute to the SPEC process !
 
 
 Python 3.12 compatibility ?
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Python 3.12 changed its tokenizer to have better support for f-strings and allow arbitrary expression.
 This is a great new feature and performance improvement in Python 3.12.
 
 Unfortunately this means the new tokenizer does not support incomplete or invalid Python which will
-break many features of IPython. Thus compatibility of IPython with Python 3.12 is not guarantied.
+break many features of IPython. Thus compatibility of IPython with Python 3.12 is not guaranteed.
 It is unclear to which extent IPython is affected, and whether we can/should try to still support magics, shell
 escape (``! ....``), ...,  as well as how to do it if we can.
 
 In addition even if we there is technical feasibility to do so, it is no clear we have the resources to do it.
 We are thus looking for your help if you can _test_ on Python 3.12 to see to which extent this affects users and which
 features are critical.
 
 We are not going to pin IPython to Python ``<3.12`` as otherwise on install pip would downgrade/resolve to IPython 8.13,
 so if you plan to update to Python 3.12 after its release, we encourage for extra care.
 
 
 .. _version 8.13.1:
 .. _version 8.13.2:
 .. _version 8.12.2:
 
 IPython 8.13.1, 8.13.2 and 8.12.2
 ---------------------------------
 
 3 quick in succession patch release of IPython in addition to IPython 8.13.0
 having been yanked.
 
 IPython 8.13.0 was improperly tagged as still compatible with Python 3.8, and
 still had some mention of compatibility with 3.8. IPython 8.13.1 is identical to
 8.13 but with the exception of being correctly tagged. This release and yank was
 mostly done to fix CI.
 
 IPython 8.12.2 and 8.13.2 contain UI fixes, with respect to right arrow not
 working in some case in the terminal, and 8.12.2 contain also a requested
 backport of :ghpull:`14029` (Allow safe access to the ``__getattribute__``
 method of modules) for tab completion.
 
 .. _version 8.13:
 
 IPython 8.13
 ------------
 
 As usual for the end of the month, minor release of IPython. This release is
 significant in that it not only has a number of bugfixes, but also drop support
 for Python 3.8 as per NEP 29 (:ghpull:`14023`).
 
 All the critical bugfixes have been backported onto the 8.12.1 release (see
 below). In addition to that went into 8.12.1 you'll find:
 
  - Pretty representation for ``Counter`` has been fixed to match the Python one
    and be in decreasing order. :ghpull:`14032`
  - Module completion is better when jedi is disabled :ghpull:`14029`.
  - Improvement of ``%%bash`` magic that would get stuck :ghpull:`14019`
 
 
 We hope you enjoy this release an will maybe see you at JupyterCon in less than
 two weeks.
 
 As usual you can find the full list of PRs on GitHub under `the 8.13 milestone
 <https://github.com/ipython/ipython/milestone/115?closed=1>`__.
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 8.12.1:
 
 IPython 8.12.1
 --------------
 
 This is the twin release of IPython 8.13 that contain only critical UI and bug
 fixes. The next minor version of IPython has dropped support for Python 3.8 – as
 per Nep 29 and this IPython 8.12.x will now only receive bugfixes.
 
 
  - :ghpull:`14004` Fix a bug introduced in IPython 8.12 that crash when
    inspecting some docstrings.
  - :ghpull:`14010` Fix fast traceback code that was not working in some case.
  - :ghpull:`14014` Fix ``%page`` magic broken in some case.
  - :ghpull:`14026`, :ghpull:`14027` Tweak default shortcut with respect to
    autosuggestions.
  - :ghpull:`14033` add back the ability to use ``.get()`` on OInfo object for
    backward compatibility with h5py (this will be re-deprecated later, and h5py
    will also get a fix).
 
 As usual you can find the full list of PRs on GitHub under `the 8.12.1 milestone
 <https://github.com/ipython/ipython/milestone/116?closed=1>`__.
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 .. _version 8.12.0:
 
 IPython 8.12
 ------------
 
 Hopefully slightly early release for IPython 8.12. Last Thursday of the month,
 even if I guess it's likely already Friday somewhere in the pacific ocean.
 
 A number of PRs and bug fixes this month with close to 20 PRs merged !
 
 
 The IPython repo reached :ghpull:`14000` !! Actually the PR that create those exact release
 note is :ghpull:`14000`. Ok, more issues and PR is not always better, and I'd
 love to have more time to close issues and Pull Requests.
 
 Let's note that in less than 2 month JupyterCon is back, in Paris please visit
 `jupytercon.com <https://jupytercon.com>`__, and looking forward to see you
 there.
 
 Packagers should take note that ``typing_extension`` is now a mandatory dependency
 for Python versions ``<3.10``.
 
 
 
 Let's note also that according to `NEP29
 <https://numpy.org/neps/nep-0029-deprecation_policy.html>`__, It is soon time to
 stop support for Python 3.8 that will be release more than 3 and 1/2 years ago::
 
     On Apr 14, 2023 drop support for Python 3.8 (initially released on Oct 14, 2019)
 
 Thus I am likely to stop advertising support for Python 3.8 in the next
 release at the end of April.
 
 
 Here are some miscellaneous updates of interest:
 
  - :ghpull:`13957` brings updates to the Qt integration, particularly for Qt6.
  - :ghpull:`13960` fixes the %debug magic command to give access to the local
    scope.
  - :ghpull:`13964` fixes some crashes with the new fast traceback code. Note that
    there are still some issues with the fast traceback code, and I a, likely
    to fix and tweak behavior.
  - :ghpull:`13973` We are slowly migrating IPython internals to use proper type
    objects/dataclasses instead of dictionaries to allow static typing checks.
    These are technically public API and could lead to breakage, so please let us
    know if that's the case and I'll mitigate.
  - :ghpull:`13990`, :ghpull:`13991`, :ghpull:`13994` all improve keybinding and
    shortcut configurability.
 
 As usual you can find the full list of PRs on GitHub under `the 8.12 milestone
 <https://github.com/ipython/ipython/milestone/114?closed=1>`__.
 
 We want to thank the D.E. Shaw group for requesting and sponsoring the work on
 the following big feature. We had productive discussions on how to best expose
 this feature
 
 Dynamic documentation dispatch
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 We are experimenting with dynamic documentation dispatch for object attribute.
 See :ghissue:`13860`. The goal is to allow object to define documentation for
 their attributes, properties, even when those are dynamically defined with
 `__getattr__`.
 
 In particular when those objects are base types it can be useful to show the
 documentation
 
 
 .. code-block:: ipython
 
 
     In [1]: class User:
        ...:
        ...:     __custom_documentations__ = {
        ...:         "first": "The first name of the user.",
        ...:         "last": "The last name of the user.",
        ...:     }
        ...:
        ...:     first:str
        ...:     last:str
        ...:
        ...:     def __init__(self, first, last):
        ...:         self.first = first
        ...:         self.last = last
        ...:
        ...:     @property
        ...:     def full(self):
        ...:         """`self.first` and `self.last` joined by a space."""
        ...:         return self.first + " " + self.last
        ...:
        ...:
        ...: user = Person('Jane', 'Doe')
 
     In [2]: user.first?
     Type:            str
     String form:     Jane
     Length:          4
     Docstring:       the first name of a the person object, a str
     Class docstring:
     ....
 
     In [3]: user.last?
     Type:            str
     String form:     Doe
     Length:          3
     Docstring:       the last name, also a str
     ...
 
 
 We can see here the symmetry with IPython looking for the docstring on the
 properties:
 
 .. code-block:: ipython
 
 
     In [4]: user.full?
     HERE
     Type:        property
     String form: <property object at 0x102bb15d0>
     Docstring:   first and last join by a space
 
 
 Note that while in the above example we use a static dictionary, libraries may
 decide to use a custom object that define ``__getitem__``, we caution against
 using objects that would trigger computation to show documentation, but it is
 sometime preferable for highly dynamic code that for example export ans API as
 object.
 
 
 
 .. _version 8.11.0:
 
 IPython 8.11
 ------------
 
 Back on almost regular monthly schedule for IPython with end-of-month
 really-late-Friday release to make sure some bugs are properly fixed.
 Small addition of with a few new features, bugfix and UX improvements.
 
 This is a non-exhaustive list, but among other you will find:
 
 Faster Traceback Highlighting
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Resurrection of pre-IPython-8 traceback highlighting code.
 
 Really long and complicated files were slow to highlight in traceback with
 IPython 8 despite upstream improvement that make many case better. Therefore
 starting with IPython 8.11 when one of the highlighted file is more than 10 000
 line long by default, we'll fallback to a faster path that does not have all the
 features of highlighting failing AST nodes.
 
 This can be configures by setting the value of
 ``IPython.code.ultratb.FAST_THRESHOLD`` to an arbitrary low or large value.
 
 
 Autoreload verbosity
 ~~~~~~~~~~~~~~~~~~~~
 
 We introduce more descriptive names for the ``%autoreload`` parameter:
 
 - ``%autoreload now`` (also ``%autoreload``) - perform autoreload immediately.
 - ``%autoreload off`` (also ``%autoreload 0``) - turn off autoreload.
 - ``%autoreload explicit`` (also ``%autoreload 1``) - turn on autoreload only for modules
   whitelisted by ``%aimport`` statements.
 - ``%autoreload all`` (also ``%autoreload 2``) - turn on autoreload for all modules except those
   blacklisted by ``%aimport`` statements.
-- ``%autoreload complete`` (also ``%autoreload 3``) - all the fatures of ``all`` but also adding new
+- ``%autoreload complete`` (also ``%autoreload 3``) - all the features of ``all`` but also adding new
   objects from the imported modules (see
   IPython/extensions/tests/test_autoreload.py::test_autoload_newly_added_objects).
 
 The original designations (e.g. "2") still work, and these new ones are case-insensitive.
 
 Additionally, the option ``--print`` or ``-p`` can be added to the line to print the names of
 modules being reloaded. Similarly, ``--log`` or ``-l`` will output the names to the logger at INFO
 level. Both can be used simultaneously.
 
 The parsing logic for ``%aimport`` is now improved such that modules can be whitelisted and
 blacklisted in the same line, e.g. it's now possible to call ``%aimport os, -math`` to include
 ``os`` for ``%autoreload explicit`` and exclude ``math`` for modes ``all`` and ``complete``.
 
 Terminal shortcuts customization
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Previously modifying shortcuts was only possible by hooking into startup files
 and practically limited to adding new shortcuts or removing all shortcuts bound
 to a specific key. This release enables users to override existing terminal
 shortcuts, disable them or add new keybindings.
 
 For example, to set the :kbd:`right` to accept a single character of auto-suggestion
 you could use::
 
     my_shortcuts = [
         {
             "command": "IPython:auto_suggest.accept_character",
             "new_keys": ["right"]
         }
     ]
     %config TerminalInteractiveShell.shortcuts = my_shortcuts
 
 You can learn more in :std:configtrait:`TerminalInteractiveShell.shortcuts`
 configuration reference.
 
 Miscellaneous
 ~~~~~~~~~~~~~
 
  - ``%gui`` should now support PySide6. :ghpull:`13864`
  - Cli shortcuts can now be configured :ghpull:`13928`, see above.
    (note that there might be an issue with prompt_toolkit 3.0.37 and shortcut configuration).
 
  - Capture output should now respect ``;`` semicolon to suppress output.
    :ghpull:`13940`
  - Base64 encoded images (in jupyter frontend), will not have trailing newlines.
    :ghpull:`13941`
 
 As usual you can find the full list of PRs on GitHub under `the 8.11 milestone
 <https://github.com/ipython/ipython/milestone/113?closed=1>`__.
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 .. _version 8.10.0:
 
 IPython 8.10
 ------------
 
 Out of schedule release of IPython with minor fixes to patch a potential CVE-2023-24816.
 This is a really low severity CVE that you most likely are not affected by unless:
 
  - You are on windows.
  - You have a custom build of Python without ``_ctypes``
  - You cd or start IPython or Jupyter in untrusted directory which names may be
    valid shell commands.
 
 You can read more on `the advisory
 <https://github.com/ipython/ipython/security/advisories/GHSA-29gw-9793-fvw7>`__.
 
 In addition to fixing this CVE we also fix a couple of outstanding bugs and issues.
 
 As usual you can find the full list of PRs on GitHub under `the 8.10 milestone
 <https://github.com/ipython/ipython/milestone/112?closed=1>`__.
 
 In Particular:
 
  - bump minimum numpy to `>=1.21` version following NEP29. :ghpull:`13930`
  - fix for compatibility with MyPy 1.0. :ghpull:`13933`
  - fix nbgrader stalling when IPython's ``showtraceback`` function is
    monkeypatched. :ghpull:`13934`
 
 
 
 As this release also contains those minimal changes in addition to fixing the
 CVE I decided to bump the minor version anyway.
 
 This will not affect the normal release schedule, so IPython 8.11 is due in
 about 2 weeks.
 
 .. _version 8.9.0:
 
 IPython 8.9.0
 -------------
 
 Second release of IPython in 2023, last Friday of the month, we are back on
 track. This is a small release with a few bug-fixes, and improvements, mostly
 with respect to terminal shortcuts.
 
 
 The biggest improvement for 8.9 is a drastic amelioration of the
 auto-suggestions sponsored by D.E. Shaw and implemented by the more and more
 active contributor `@krassowski <https://github.com/krassowski>`.
 
 - ``right`` accepts a single character from suggestion
 - ``ctrl+right`` accepts a semantic token (macos default shortcuts take
   precedence and need to be disabled to make this work)
 - ``backspace`` deletes a character and resumes hinting autosuggestions
 - ``ctrl-left`` accepts suggestion and moves cursor left one character.
 - ``backspace`` deletes a character and resumes hinting autosuggestions
 - ``down`` moves to suggestion to later in history when no lines are present below the cursors.
 - ``up`` moves to suggestion from earlier in history when no lines are present above the cursor.
 
 This is best described by the Gif posted by `@krassowski
 <https://github.com/krassowski>`, and in the PR itself :ghpull:`13888`.
 
 .. image:: ../_images/autosuggest.gif
 
 Please report any feedback in order for us to improve the user experience.
 In particular we are also working on making the shortcuts configurable.
 
 If you are interested in better terminal shortcuts, I also invite you to
 participate in issue `13879
 <https://github.com/ipython/ipython/issues/13879>`__.
 
 
 As we follow `NEP29
 <https://numpy.org/neps/nep-0029-deprecation_policy.html>`__, next version of
 IPython will officially stop supporting numpy 1.20, and will stop supporting
 Python 3.8 after April release.
 
 As usual you can find the full list of PRs on GitHub under `the 8.9 milestone
 <https://github.com/ipython/ipython/milestone/111?closed=1>`__.
 
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 .. _version 8.8.0:
 
 IPython 8.8.0
 -------------
 
 First release of IPython in 2023 as there was no release at the end of
 December.
 
 This is an unusually big release (relatively speaking) with more than 15 Pull
 Requests merged.
 
 Of particular interest are:
 
  - :ghpull:`13852` that replaces the greedy completer and improves
    completion, in particular for dictionary keys.
  - :ghpull:`13858` that adds ``py.typed`` to ``setup.cfg`` to make sure it is
    bundled in wheels.
  - :ghpull:`13869` that implements tab completions for IPython options in the
    shell when using `argcomplete <https://github.com/kislyuk/argcomplete>`. I
    believe this also needs a recent version of Traitlets.
  - :ghpull:`13865` makes the ``inspector`` class of `InteractiveShell`
    configurable.
  - :ghpull:`13880` that removes minor-version entrypoints as the minor version
    entry points that would be included in the wheel would be the one of the
    Python version that was used to build the ``whl`` file.
 
 In no particular order, the rest of the changes update the test suite to be
 compatible with Pygments 2.14, various docfixes, testing on more recent python
 versions and various updates.
 
 As usual you can find the full list of PRs on GitHub under `the 8.8 milestone
 <https://github.com/ipython/ipython/milestone/110>`__.
 
 Many thanks to @krassowski for the many PRs and @jasongrout for reviewing and
 merging contributions.
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 .. _version 8.7.0:
 
 IPython 8.7.0
 -------------
 
 
 Small release of IPython with a couple of bug fixes and new features for this
 month. Next month is the end of year, it is unclear if there will be a release
 close to the new year's eve, or if the next release will be at the end of January.
 
 Here are a few of the relevant fixes,
 as usual you can find the full list of PRs on GitHub under `the 8.7 milestone
 <https://github.com/ipython/ipython/pulls?q=milestone%3A8.7>`__.
 
 
    - :ghpull:`13834` bump the minimum prompt toolkit to 3.0.11.
    - IPython shipped with the ``py.typed`` marker now, and we are progressively
      adding more types. :ghpull:`13831`
    - :ghpull:`13817` add configuration of code blacks formatting.
 
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 8.6.0:
 
 IPython 8.6.0
 -------------
 
 Back to a more regular release schedule (at least I try), as Friday is
 already over by more than 24h hours. This is a slightly bigger release with a
 few new features that contain no less than 25 PRs.
 
 We'll notably found a couple of non negligible changes:
 
 The ``install_ext`` and related functions have been removed after being
 deprecated for years. You can use pip to install extensions. ``pip`` did not
 exist when ``install_ext`` was introduced. You can still load local extensions
 without installing them. Just set your ``sys.path`` for example. :ghpull:`13744`
 
 IPython now has extra entry points that use the major *and minor* version of
 python. For some of you this means that you can do a quick ``ipython3.10`` to
 launch IPython from the Python 3.10 interpreter, while still using Python 3.11
 as your main Python. :ghpull:`13743`
 
 The completer matcher API has been improved. See :ghpull:`13745`. This should
 improve the type inference and improve dict keys completions in many use case.
 Thanks ``@krassowski`` for all the work, and the D.E. Shaw group for sponsoring
 it.
 
 The color of error nodes in tracebacks can now be customized. See
 :ghpull:`13756`. This is a private attribute until someone finds the time to
 properly add a configuration option. Note that with Python 3.11 that also shows
 the relevant nodes in traceback, it would be good to leverage this information
 (plus the "did you mean" info added on attribute errors). But that's likely work
 I won't have time to do before long, so contributions welcome.
 
 As we follow NEP 29, we removed support for numpy 1.19 :ghpull:`13760`.
 
 
 The ``open()`` function present in the user namespace by default will now refuse
 to open the file descriptors 0,1,2 (stdin, out, err), to avoid crashing IPython.
 This mostly occurs in teaching context when incorrect values get passed around.
 
 
 The ``?``, ``??``, and corresponding ``pinfo``, ``pinfo2`` magics can now find
 objects inside arrays. That is to say, the following now works::
 
 
    >>> def my_func(*arg, **kwargs):pass
    >>> container = [my_func]
    >>> container[0]?
 
 
 If ``container`` define a custom ``getitem``, this __will__ trigger the custom
 method. So don't put side effects in your ``getitems``. Thanks to the D.E. Shaw
 group for the request and sponsoring the work.
 
 
 As usual you can find the full list of PRs on GitHub under `the 8.6 milestone
 <https://github.com/ipython/ipython/pulls?q=milestone%3A8.6>`__.
 
 Thanks to all hacktoberfest contributors, please contribute to
 `closember.org <https://closember.org/>`__.
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 .. _version 8.5.0:
 
 IPython 8.5.0
 -------------
 
 First release since a couple of month due to various reasons and timing preventing
 me for sticking to the usual monthly release the last Friday of each month. This
 is of non negligible size as it has more than two dozen PRs with various fixes
 an bug fixes.
 
 Many thanks to everybody who contributed PRs for your patience in review and
 merges.
 
 Here is a non-exhaustive list of changes that have been implemented for IPython
 8.5.0. As usual you can find the full list of issues and PRs tagged with `the
 8.5 milestone
 <https://github.com/ipython/ipython/pulls?q=is%3Aclosed+milestone%3A8.5+>`__.
 
  - Added a shortcut for accepting auto suggestion. The End key shortcut for
    accepting auto-suggestion This binding works in Vi mode too, provided
    ``TerminalInteractiveShell.emacs_bindings_in_vi_insert_mode`` is set to be
    ``True`` :ghpull:`13566`.
 
  - No popup in window for latex generation when generating latex (e.g. via
    `_latex_repr_`) no popup window is shows under Windows. :ghpull:`13679`
 
  - Fixed error raised when attempting to tab-complete an input string with
    consecutive periods or forward slashes (such as "file:///var/log/...").
    :ghpull:`13675`
 
  - Relative filenames in Latex rendering :
    The `latex_to_png_dvipng` command internally generates input and output file
    arguments to `latex` and `dvipis`. These arguments are now generated as
    relative files to the current working directory instead of absolute file
    paths. This solves a problem where the current working directory contains
    characters that are not handled properly by `latex` and `dvips`. There are
    no changes to the user API. :ghpull:`13680`
 
  - Stripping decorators bug: Fixed bug which meant that ipython code blocks in
    restructured text documents executed with the ipython-sphinx extension
    skipped any lines of code containing python decorators. :ghpull:`13612`
 
  - Allow some modules with frozen dataclasses to be reloaded. :ghpull:`13732`
  - Fix paste magic on wayland. :ghpull:`13671`
  - show maxlen in deque's repr. :ghpull:`13648`
 
 Restore line numbers for Input
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Line number information in tracebacks from input are restored.
 Line numbers from input were removed during the transition to v8 enhanced traceback reporting.
 
 So, instead of::
 
     ---------------------------------------------------------------------------
     ZeroDivisionError                         Traceback (most recent call last)
     Input In [3], in <cell line: 1>()
     ----> 1 myfunc(2)
 
     Input In [2], in myfunc(z)
           1 def myfunc(z):
     ----> 2     foo.boo(z-1)
 
     File ~/code/python/ipython/foo.py:3, in boo(x)
           2 def boo(x):
     ----> 3     return 1/(1-x)
 
     ZeroDivisionError: division by zero
 
 The error traceback now looks like::
 
       ---------------------------------------------------------------------------
       ZeroDivisionError                         Traceback (most recent call last)
       Cell In [3], line 1
       ----> 1 myfunc(2)
 
       Cell In [2], line 2, in myfunc(z)
             1 def myfunc(z):
       ----> 2     foo.boo(z-1)
 
       File ~/code/python/ipython/foo.py:3, in boo(x)
             2 def boo(x):
       ----> 3     return 1/(1-x)
 
       ZeroDivisionError: division by zero
 
 or, with xmode=Plain::
 
     Traceback (most recent call last):
       Cell In [12], line 1
         myfunc(2)
       Cell In [6], line 2 in myfunc
         foo.boo(z-1)
       File ~/code/python/ipython/foo.py:3 in boo
         return 1/(1-x)
     ZeroDivisionError: division by zero
 
 :ghpull:`13560`
 
 New setting to silence warning if working inside a virtual environment
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Previously, when starting IPython in a virtual environment without IPython installed (so IPython from the global environment is used), the following warning was printed:
 
     Attempting to work in a virtualenv. If you encounter problems, please install IPython inside the virtualenv.
 
 This warning can be permanently silenced by setting ``c.InteractiveShell.warn_venv`` to ``False`` (the default is ``True``).
 
 :ghpull:`13706`
 
 -------
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 8.4.0:
 
 IPython 8.4.0
 -------------
 
 As for 7.34, this version contains a single fix:  fix uncaught BdbQuit exceptions on ipdb
 exit :ghpull:`13668`, and a single typo fix in documentation: :ghpull:`13682`
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 
 .. _version 8.3.0:
 
 IPython 8.3.0
 -------------
 
  - :ghpull:`13625`, using ``?``, ``??``, ``*?`` will not call
    ``set_next_input`` as most frontend allow proper multiline editing and it was
    causing issues for many users of multi-cell frontends. This has been backported to 7.33
 
 
  - :ghpull:`13600`, ``pre_run_*``-hooks will now have a ``cell_id`` attribute on
    the info object when frontend provides it. This has been backported to 7.33
 
  - :ghpull:`13624`, fixed :kbd:`End` key being broken after accepting an
    auto-suggestion.
 
  - :ghpull:`13657` fixed an issue where history from different sessions would be mixed.
 
 .. _version 8.2.0:
 
 IPython 8.2.0
 -------------
 
 IPython 8.2 mostly bring bugfixes to IPython.
 
  - Auto-suggestion can now be elected with the ``end`` key. :ghpull:`13566`
  - Some traceback issues with ``assert etb is not None`` have been fixed. :ghpull:`13588`
  - History is now pulled from the sqitel database and not from in-memory.
    In particular when using the ``%paste`` magic, the content of the pasted text will
    be part of the history and not the verbatim text ``%paste`` anymore. :ghpull:`13592`
  - Fix ``Ctrl-\\`` exit cleanup :ghpull:`13603`
  - Fixes to ``ultratb`` ipdb support when used outside of IPython. :ghpull:`13498`
 
 
 I am still trying to fix and investigate :ghissue:`13598`, which seems to be
 random, and would appreciate help if you find a reproducible minimal case. I've
 tried to make various changes to the codebase to mitigate it, but a proper fix
 will be difficult without understanding the cause.
 
 
 All the issues on pull-requests for this release can be found in the `8.2
 milestone. <https://github.com/ipython/ipython/milestone/100>`__ . And some
 documentation only PR can be found as part of the `7.33 milestone
 <https://github.com/ipython/ipython/milestone/101>`__ (currently not released).
 
 Thanks to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries.
 
 .. _version 8.1.1:
 
 IPython 8.1.1
 -------------
 
 Fix an issue with virtualenv and Python 3.8 introduced in 8.1
 
 Revert :ghpull:`13537` (fix an issue with symlinks in virtualenv) that raises an
 error in Python 3.8, and fixed in a different way in :ghpull:`13559`.
 
 .. _version 8.1:
 
 IPython 8.1.0
 -------------
 
 IPython 8.1 is the first minor release after 8.0 and fixes a number of bugs and
 updates a few behaviors that were problematic with the 8.0 as with many new major
 release.
 
 Note that beyond the changes listed here, IPython 8.1.0 also contains all the
 features listed in :ref:`version 7.32`.
 
  - Misc and multiple fixes around quotation auto-closing. It is now disabled by
    default. Run with ``TerminalInteractiveShell.auto_match=True`` to re-enabled
  - Require pygments>=2.4.0 :ghpull:`13459`, this was implicit in the code, but
    is now explicit in ``setup.cfg``/``setup.py``
  - Docs improvement of ``core.magic_arguments`` examples. :ghpull:`13433`
  - Multi-line edit executes too early with await. :ghpull:`13424`
 
  - ``black``  is back as an optional dependency, and autoformatting disabled by
    default until some fixes are implemented (black improperly reformat magics).
    :ghpull:`13471` Additionally the ability to use ``yapf`` as a code
    reformatter has been added :ghpull:`13528` . You can use
    ``TerminalInteractiveShell.autoformatter="black"``,
    ``TerminalInteractiveShell.autoformatter="yapf"`` to re-enable auto formatting
    with black, or switch to yapf.
 
  - Fix and issue where ``display`` was not defined.
 
  - Auto suggestions are now configurable. Currently only
    ``AutoSuggestFromHistory`` (default) and ``None``. new provider contribution
    welcomed. :ghpull:`13475`
 
  - multiple packaging/testing improvement to simplify downstream packaging
    (xfail with reasons, try to not access network...).
 
  - Update deprecation. ``InteractiveShell.magic`` internal method has been
    deprecated for many years but did not emit a warning until now.
 
  - internal ``appended_to_syspath`` context manager has been deprecated.
 
  - fix an issue with symlinks in virtualenv :ghpull:`13537` (Reverted in 8.1.1)
 
  - Fix an issue with vim mode, where cursor would not be reset on exit :ghpull:`13472`
 
  - ipython directive now remove only known pseudo-decorators :ghpull:`13532`
 
  - ``IPython/lib/security`` which used to be used for jupyter notebook has been
    removed.
 
  - Fix an issue where ``async with`` would execute on new lines. :ghpull:`13436`
 
 
 We want to remind users that IPython is part of the Jupyter organisations, and
 thus governed by a Code of Conduct. Some of the behavior we have seen on GitHub is not acceptable.
 Abuse and non-respectful comments on discussion will not be tolerated.
 
 Many thanks to all the contributors to this release, many of the above fixed issues and
 new features were done by first time contributors, showing there is still
 plenty of easy contribution possible in IPython
 . You can find all individual contributions
 to this milestone `on github <https://github.com/ipython/ipython/milestone/91>`__.
 
 Thanks as well to the `D. E. Shaw group <https://deshaw.com/>`__ for sponsoring
 work on IPython and related libraries. In particular the Lazy autoloading of
 magics that you will find described in the 7.32 release notes.
 
 
 .. _version 8.0.1:
 
 IPython 8.0.1 (CVE-2022-21699)
 ------------------------------
 
 IPython 8.0.1, 7.31.1 and 5.11 are security releases that change some default
 values in order to prevent potential Execution with Unnecessary Privileges.
 
 Almost all version of IPython looks for configuration and profiles in current
 working directory. Since IPython was developed before pip and environments
 existed it was used a convenient way to load code/packages in a project
-dependant way.
+dependent way.
 
 In 2022, it is not necessary anymore, and can lead to confusing behavior where
 for example cloning a repository and starting IPython or loading a notebook from
 any Jupyter-Compatible interface that has ipython set as a kernel can lead to
 code execution.
 
 
 I did not find any standard way for packaged to advertise CVEs they fix, I'm
 thus trying to add a ``__patched_cves__`` attribute to the IPython module that
 list the CVEs that should have been fixed. This attribute is informational only
 as if a executable has a flaw, this value can always be changed by an attacker.
 
 .. code::
 
     In [1]: import IPython
 
     In [2]: IPython.__patched_cves__
     Out[2]: {'CVE-2022-21699'}
 
     In [3]: 'CVE-2022-21699' in IPython.__patched_cves__
     Out[3]: True
 
 Thus starting with this version:
 
  - The current working directory is not searched anymore for profiles or
    configurations files.
  - Added a ``__patched_cves__`` attribute (set of strings) to IPython module that contain
    the list of fixed CVE. This is informational only.
 
 Further details can be read on the `GitHub Advisory <https://github.com/ipython/ipython/security/advisories/GHSA-pq7m-3gw7-gq5x>`__
 
 
 .. _version 8.0:
 
 IPython 8.0
 -----------
 
 IPython 8.0 is bringing a large number of new features and improvements to both the
 user of the terminal and of the kernel via Jupyter. The removal of compatibility
 with an older version of Python is also the opportunity to do a couple of
 performance improvements in particular with respect to startup time.
 The 8.x branch started diverging from its predecessor around IPython 7.12
 (January 2020).
 
 This release contains 250+ pull requests, in addition to many of the features
 and backports that have made it to the 7.x branch. Please see the
 `8.0 milestone <https://github.com/ipython/ipython/milestone/73?closed=1>`__ for the full list of pull requests.
 
 Please feel free to send pull requests to update those notes after release,
 I have likely forgotten a few things reviewing 250+ PRs.
 
 Dependencies changes/downstream packaging
 -----------------------------------------
 
 Most of our building steps have been changed to be (mostly) declarative
 and follow PEP 517. We are trying to completely remove ``setup.py`` (:ghpull:`13238`) and are
 looking for help to do so.
 
  - minimum supported ``traitlets`` version is now 5+
  - we now require ``stack_data``
  - minimal Python is now 3.8
  - ``nose`` is not a testing requirement anymore
  - ``pytest`` replaces nose.
  - ``iptest``/``iptest3`` cli entrypoints do not exist anymore.
  - the minimum officially ​supported ``numpy`` version has been bumped, but this should
    not have much effect on packaging.
 
 
 Deprecation and removal
 -----------------------
 
 We removed almost all features, arguments, functions, and modules that were
 marked as deprecated between IPython 1.0 and 5.0. As a reminder, 5.0 was released
 in 2016, and 1.0 in 2013. Last release of the 5 branch was 5.10.0, in May 2020.
 The few remaining deprecated features we left have better deprecation warnings
 or have been turned into explicit errors for better error messages.
 
 I will use this occasion to add the following requests to anyone emitting a
 deprecation warning:
 
  - Please add at least ``stacklevel=2`` so that the warning is emitted into the
    caller context, and not the callee one.
  - Please add **since which version** something is deprecated.
 
 As a side note, it is much easier to conditionally compare version
 numbers rather than using ``try/except`` when functionality changes with a version.
 
 I won't list all the removed features here, but modules like ``IPython.kernel``,
 which was just a shim module around ``ipykernel`` for the past 8 years, have been
 removed, and so many other similar things that pre-date the name **Jupyter**
 itself.
 
 We no longer need to add ``IPython.extensions`` to the PYTHONPATH because that is being
 handled by ``load_extension``.
 
 We are also removing ``Cythonmagic``, ``sympyprinting`` and ``rmagic`` as they are now in
 other packages and no longer need to be inside IPython.
 
 
 Documentation
 -------------
 
 The majority of our docstrings have now been reformatted and automatically fixed by
 the experimental `Vélin <https://pypi.org/project/velin/>`_ project to conform
 to numpydoc.
 
 Type annotations
 ----------------
 
 While IPython itself is highly dynamic and can't be completely typed, many of
 the functions now have type annotations, and part of the codebase is now checked
 by mypy.
 
 
 Featured changes
 ----------------
 
 Here is a features list of changes in IPython 8.0. This is of course non-exhaustive.
 Please note as well that many features have been added in the 7.x branch as well
 (and hence why you want to read the 7.x what's new notes), in particular
 features contributed by QuantStack (with respect to debugger protocol and Xeus
 Python), as well as many debugger features that I was pleased to implement as
 part of my work at QuanSight and sponsored by DE Shaw.
 
 Traceback improvements
 ~~~~~~~~~~~~~~~~~~~~~~
 
 Previously, error tracebacks for errors happening in code cells were showing a
 hash, the one used for compiling the Python AST::
 
     In [1]: def foo():
     ...:     return 3 / 0
     ...:
 
     In [2]: foo()
     ---------------------------------------------------------------------------
     ZeroDivisionError                         Traceback (most recent call last)
     <ipython-input-2-c19b6d9633cf> in <module>
     ----> 1 foo()
 
     <ipython-input-1-1595a74c32d5> in foo()
         1 def foo():
     ----> 2     return 3 / 0
         3
 
     ZeroDivisionError: division by zero
 
 The error traceback is now correctly formatted, showing the cell number in which the error happened::
 
     In [1]: def foo():
     ...:     return 3 / 0
     ...:
 
     Input In [2]: foo()
     ---------------------------------------------------------------------------
     ZeroDivisionError                         Traceback (most recent call last)
     input In [2], in <module>
     ----> 1 foo()
 
     Input In [1], in foo()
         1 def foo():
     ----> 2     return 3 / 0
 
     ZeroDivisionError: division by zero
 
 The ``stack_data`` package has been integrated, which provides smarter information in the traceback;
 in particular it will highlight the AST node where an error occurs which can help to quickly narrow down errors.
 
 For example in the following snippet::
 
     def foo(i):
         x = [[[0]]]
         return x[0][i][0]
 
 
     def bar():
         return foo(0) + foo(
             1
         ) + foo(2)
 
 
 calling ``bar()`` would raise an ``IndexError`` on the return line of ``foo``,
 and IPython 8.0 is capable of telling you where the index error occurs::
 
 
     IndexError
     Input In [2], in <module>
     ----> 1 bar()
             ^^^^^
 
     Input In [1], in bar()
           6 def bar():
     ----> 7     return foo(0) + foo(
                                 ^^^^
           8         1
              ^^^^^^^^
           9     ) + foo(2)
              ^^^^
 
     Input In [1], in foo(i)
           1 def foo(i):
           2     x = [[[0]]]
     ----> 3     return x[0][i][0]
                        ^^^^^^^
 
 The corresponding locations marked here with ``^`` will show up highlighted in
 the terminal and notebooks.
 
 Finally, a colon ``::`` and line number is appended after a filename in
 traceback::
 
 
     ZeroDivisionError               Traceback (most recent call last)
     File ~/error.py:4, in <module>
           1 def f():
           2     1/0
     ----> 4 f()
 
     File ~/error.py:2, in f()
           1 def f():
     ----> 2     1/0
 
 Many terminals and editors have integrations enabling you to directly jump to the
 relevant file/line when this syntax is used, so this small addition may have a high
 impact on productivity.
 
 
 Autosuggestions
 ~~~~~~~~~~~~~~~
 
 Autosuggestion is a very useful feature available in `fish <https://fishshell.com/>`__, `zsh <https://en.wikipedia.org/wiki/Z_shell>`__, and `prompt-toolkit <https://python-prompt-toolkit.readthedocs.io/en/master/pages/asking_for_input.html#auto-suggestion>`__.
 
 `Ptpython <https://github.com/prompt-toolkit/ptpython#ptpython>`__ allows users to enable this feature in
 `ptpython/config.py <https://github.com/prompt-toolkit/ptpython/blob/master/examples/ptpython_config/config.py#L90>`__.
 
 This feature allows users to accept autosuggestions with ctrl e, ctrl f,
 or right arrow as described below.
 
 1. Start ipython
 
 .. image:: ../_images/8.0/auto_suggest_1_prompt_no_text.png
 
 2. Run ``print("hello")``
 
 .. image:: ../_images/8.0/auto_suggest_2_print_hello_suggest.png
 
 3. start typing ``print`` again to see the autosuggestion
 
 .. image:: ../_images/8.0/auto_suggest_3_print_hello_suggest.png
 
 4. Press ``ctrl-f``, or ``ctrl-e``, or ``right-arrow`` to accept the suggestion
 
 .. image:: ../_images/8.0/auto_suggest_4_print_hello.png
 
 You can also complete word by word:
 
 1. Run ``def say_hello(): print("hello")``
 
 .. image:: ../_images/8.0/auto_suggest_second_prompt.png
 
 2. Start typing  the first letter if ``def`` to see the autosuggestion
 
 .. image:: ../_images/8.0/auto_suggest_d_phantom.png
 
 3. Press ``alt-f`` (or ``escape`` followed by ``f``), to accept the first word of the suggestion
 
 .. image:: ../_images/8.0/auto_suggest_def_phantom.png
 
 Importantly, this feature does not interfere with tab completion:
 
 1. After running ``def say_hello(): print("hello")``, press d
 
 .. image:: ../_images/8.0/auto_suggest_d_phantom.png
 
 2. Press Tab to start tab completion
 
 .. image:: ../_images/8.0/auto_suggest_d_completions.png
 
 3A. Press Tab again to select the first option
 
 .. image:: ../_images/8.0/auto_suggest_def_completions.png
 
 3B. Press ``alt f`` (``escape``, ``f``) to accept to accept the first word of the suggestion
 
 .. image:: ../_images/8.0/auto_suggest_def_phantom.png
 
 3C. Press ``ctrl-f`` or ``ctrl-e`` to accept the entire suggestion
 
 .. image:: ../_images/8.0/auto_suggest_match_parens.png
 
 
 Currently, autosuggestions are only shown in the emacs or vi insert editing modes:
 
 - The ctrl e, ctrl f, and alt f shortcuts work by default in emacs mode.
 - To use these shortcuts in vi insert mode, you will have to create `custom keybindings in your config.py <https://github.com/mskar/setup/commit/2892fcee46f9f80ef7788f0749edc99daccc52f4/>`__.
 
 
 Show pinfo information in ipdb using "?" and "??"
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 In IPDB, it is now possible to show the information about an object using "?"
 and "??", in much the same way that it can be done when using the IPython prompt::
 
     ipdb> partial?
     Init signature: partial(self, /, *args, **kwargs)
     Docstring:
     partial(func, *args, **keywords) - new function with partial application
     of the given arguments and keywords.
     File:           ~/.pyenv/versions/3.8.6/lib/python3.8/functools.py
     Type:           type
     Subclasses:
 
 Previously, ``pinfo`` or ``pinfo2`` command had to be used for this purpose.
 
 
 Autoreload 3 feature
 ~~~~~~~~~~~~~~~~~~~~
 
 Example: When an IPython session is run with the 'autoreload' extension loaded,
 you will now have the option '3' to select, which means the following:
 
     1. replicate all functionality from option 2
     2. autoload all new funcs/classes/enums/globals from the module when they are added
     3. autoload all newly imported funcs/classes/enums/globals from external modules
 
 Try ``%autoreload 3`` in an IPython session after running ``%load_ext autoreload``.
 
 For more information please see the following unit test : ``extensions/tests/test_autoreload.py:test_autoload_newly_added_objects``
 
 Auto formatting with black in the CLI
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 This feature was present in 7.x, but disabled by default.
 
 In 8.0, input was automatically reformatted with Black when black was installed.
 This feature has been reverted for the time being.
 You can re-enable it by setting ``TerminalInteractiveShell.autoformatter`` to ``"black"``
 
 History Range Glob feature
 ~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Previously, when using ``%history``, users could specify either
 a range of sessions and lines, for example:
 
 .. code-block:: python
 
    ~8/1-~6/5   # see history from the first line of 8 sessions ago,
                # to the fifth line of 6 sessions ago.``
 
 Or users could specify a glob pattern:
 
 .. code-block:: python
 
    -g <pattern>  # glob ALL history for the specified pattern.
 
 However users could *not* specify both.
 
 If a user *did* specify both a range and a glob pattern,
 then the glob pattern would be used (globbing *all* history) *and the range would be ignored*.
 
 With this enhancement, if a user specifies both a range and a glob pattern, then the glob pattern will be applied to the specified range of history.
 
 Don't start a multi-line cell with sunken parenthesis
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 From now on, IPython will not ask for the next line of input when given a single
 line with more closing than opening brackets. For example, this means that if
 you (mis)type ``]]`` instead of ``[]``, a ``SyntaxError`` will show up, instead of
 the ``...:`` prompt continuation.
 
 IPython shell for ipdb interact
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 The ipdb ``interact`` starts an IPython shell instead of Python's built-in ``code.interact()``.
 
 Automatic Vi prompt stripping
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 When pasting code into IPython, it will strip the leading prompt characters if
 there are any. For example, you can paste the following code into the console -
 it will still work, even though each line is prefixed with prompts (``In``,
 ``Out``)::
 
     In [1]: 2 * 2 == 4
     Out[1]: True
 
     In [2]: print("This still works as pasted")
 
 
 Previously, this was not the case for the Vi-mode prompts::
 
     In [1]: [ins] In [13]: 2 * 2 == 4
        ...: Out[13]: True
        ...:
       File "<ipython-input-1-727bb88eaf33>", line 1
         [ins] In [13]: 2 * 2 == 4
               ^
     SyntaxError: invalid syntax
 
 This is now fixed, and Vi prompt prefixes - ``[ins]`` and ``[nav]`` -  are
 skipped just as the normal ``In`` would be.
 
 IPython shell can be started in the Vi mode using ``ipython --TerminalInteractiveShell.editing_mode=vi``,
 You should be able to change mode dynamically with ``%config TerminalInteractiveShell.editing_mode='vi'``
 
 Empty History Ranges
 ~~~~~~~~~~~~~~~~~~~~
 
 A number of magics that take history ranges can now be used with an empty
 range. These magics are:
 
  * ``%save``
  * ``%load``
  * ``%pastebin``
  * ``%pycat``
 
 Using them this way will make them take the history of the current session up
 to the point of the magic call (such that the magic itself will not be
 included).
 
 Therefore it is now possible to save the whole history to a file using
 ``%save <filename>``, load and edit it using ``%load`` (makes for a nice usage
 when followed with :kbd:`F2`), send it to `dpaste.org <http://dpast.org>`_ using
 ``%pastebin``, or view the whole thing syntax-highlighted with a single
 ``%pycat``.
 
 
 Windows timing implementation: Switch to process_time
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Timing on Windows, for example with ``%%time``,  was changed from being based on ``time.perf_counter``
 (which counted time even when the process was sleeping) to being based on ``time.process_time`` instead
 (which only counts CPU time). This brings it closer to the behavior on Linux. See :ghpull:`12984`.
 
 Miscellaneous
 ~~~~~~~~~~~~~
  - Non-text formatters are not disabled in the terminal, which should simplify
    writing extensions displaying images or other mimetypes in supporting terminals.
    :ghpull:`12315`
  - It is now possible to automatically insert matching brackets in Terminal IPython using the
    ``TerminalInteractiveShell.auto_match=True`` option. :ghpull:`12586`
  - We are thinking of deprecating the current ``%%javascript`` magic in favor of a better replacement. See :ghpull:`13376`.
  - ``~`` is now expanded when part of a path in most magics :ghpull:`13385`
  - ``%/%%timeit`` magic now adds a comma every thousands to make reading a long number easier :ghpull:`13379`
  - ``"info"`` messages can now be customised to hide some fields :ghpull:`13343`
  - ``collections.UserList`` now pretty-prints :ghpull:`13320`
  - The debugger now has a persistent history, which should make it less
    annoying to retype commands :ghpull:`13246`
  - ``!pip`` ``!conda`` ``!cd`` or ``!ls`` are likely doing the wrong thing. We
    now warn users if they use one of those commands. :ghpull:`12954`
  - Make ``%precision`` work for ``numpy.float64`` type :ghpull:`12902`
 
 Re-added support for XDG config directories
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 XDG support through the years comes and goes. There is a tension between having
 an identical location for configuration in all platforms versus having simple instructions.
 After initial failures a couple of years ago, IPython was modified to automatically migrate XDG
 config files back into ``~/.ipython``. That migration code has now been removed.
 IPython now checks the XDG locations, so if you _manually_ move your config
 files to your preferred location, IPython will not move them back.
 
 
 Preparing for Python 3.10
 -------------------------
 
 To prepare for Python 3.10, we have started working on removing reliance and
 any dependency that is not compatible with Python 3.10. This includes migrating our
 test suite to pytest and starting to remove nose. This also means that the
 ``iptest`` command is now gone and all testing is via pytest.
 
 This was in large part thanks to the NumFOCUS Small Developer grant, which enabled us to
 allocate \$4000 to hire `Nikita Kniazev (@Kojoley) <https://github.com/Kojoley>`_,
 who did a fantastic job at updating our code base, migrating to pytest, pushing
 our coverage, and fixing a large number of bugs. I highly recommend contacting
 them if you need help with C++ and Python projects.
 
 You can find all relevant issues and PRs with `the SDG 2021 tag <https://github.com/ipython/ipython/issues?q=label%3A%22Numfocus+SDG+2021%22+>`__
 
 Removing support for older Python versions
 ------------------------------------------
 
 
 We are removing support for Python up through 3.7, allowing internal code to use the more
 efficient ``pathlib`` and to make better use of type annotations.
 
 .. image:: ../_images/8.0/pathlib_pathlib_everywhere.jpg
    :alt: "Meme image of Toy Story with Woody and Buzz, with the text 'pathlib, pathlib everywhere'"
 
 
 We had about 34 PRs only to update some logic to update some functions from managing strings to
 using Pathlib.
 
 The completer has also seen significant updates and now makes use of newer Jedi APIs,
 offering faster and more reliable tab completion.
 
 Misc Statistics
 ---------------
 
 Here are some numbers::
 
     7.x: 296 files, 12561 blank lines, 20282 comments, 35142 line of code.
     8.0: 252 files, 12053 blank lines, 19232 comments, 34505 line of code.
 
     $ git diff --stat 7.x...master  | tail -1
     340 files changed, 13399 insertions(+), 12421 deletions(-)
 
 We have commits from 162 authors, who contributed 1916 commits in 23 month, excluding merges (to not bias toward
 maintainers pushing buttons).::
 
    $ git shortlog  -s --no-merges  7.x...master | sort -nr
    535	Matthias Bussonnier
     86	Nikita Kniazev
     69	Blazej Michalik
     49	Samuel Gaist
     27	Itamar Turner-Trauring
     18	Spas Kalaydzhisyki
     17	Thomas Kluyver
     17	Quentin Peter
     17	James Morris
     17	Artur Svistunov
     15	Bart Skowron
     14	Alex Hall
     13	rushabh-v
     13	Terry Davis
     13	Benjamin Ragan-Kelley
      8	martinRenou
      8	farisachugthai
      7	dswij
      7	Gal B
      7	Corentin Cadiou
      6	yuji96
      6	Martin Skarzynski
      6	Justin Palmer
      6	Daniel Goldfarb
      6	Ben Greiner
      5	Sammy Al Hashemi
      5	Paul Ivanov
      5	Inception95
      5	Eyenpi
      5	Douglas Blank
      5	Coco Mishra
      5	Bibo Hao
      5	André A. Gomes
      5	Ahmed Fasih
      4	takuya fujiwara
      4	palewire
      4	Thomas A Caswell
      4	Talley Lambert
      4	Scott Sanderson
      4	Ram Rachum
      4	Nick Muoh
      4	Nathan Goldbaum
      4	Mithil Poojary
      4	Michael T
      4	Jakub Klus
      4	Ian Castleden
      4	Eli Rykoff
      4	Ashwin Vishnu
      3	谭九鼎
      3	sleeping
      3	Sylvain Corlay
      3	Peter Corke
      3	Paul Bissex
      3	Matthew Feickert
      3	Fernando Perez
      3	Eric Wieser
      3	Daniel Mietchen
      3	Aditya Sathe
      3	007vedant
      2	rchiodo
      2	nicolaslazo
      2	luttik
      2	gorogoroumaru
      2	foobarbyte
      2	bar-hen
      2	Theo Ouzhinski
      2	Strawkage
      2	Samreen Zarroug
      2	Pete Blois
      2	Meysam Azad
      2	Matthieu Ancellin
      2	Mark Schmitz
      2	Maor Kleinberger
      2	MRCWirtz
      2	Lumir Balhar
      2	Julien Rabinow
      2	Juan Luis Cano Rodríguez
      2	Joyce Er
      2	Jakub
      2	Faris A Chugthai
      2	Ethan Madden
      2	Dimitri Papadopoulos
      2	Diego Fernandez
      2	Daniel Shimon
      2	Coco Bennett
      2	Carlos Cordoba
      2	Boyuan Liu
      2	BaoGiang HoangVu
      2	Augusto
      2	Arthur Svistunov
      2	Arthur Moreira
      2	Ali Nabipour
      2	Adam Hackbarth
      1	richard
      1	linar-jether
      1	lbennett
      1	juacrumar
      1	gpotter2
      1	digitalvirtuoso
      1	dalthviz
      1	Yonatan Goldschmidt
      1	Tomasz Kłoczko
      1	Tobias Bengfort
      1	Timur Kushukov
      1	Thomas
      1	Snir Broshi
      1	Shao Yang Hong
      1	Sanjana-03
      1	Romulo Filho
      1	Rodolfo Carvalho
      1	Richard Shadrach
      1	Reilly Tucker Siemens
      1	Rakessh Roshan
      1	Piers Titus van der Torren
      1	PhanatosZou
      1	Pavel Safronov
      1	Paulo S. Costa
      1	Paul McCarthy
      1	NotWearingPants
      1	Naelson Douglas
      1	Michael Tiemann
      1	Matt Wozniski
      1	Markus Wageringel
      1	Marcus Wirtz
      1	Marcio Mazza
      1	Lumír 'Frenzy' Balhar
      1	Lightyagami1
      1	Leon Anavi
      1	LeafyLi
      1	L0uisJ0shua
      1	Kyle Cutler
      1	Krzysztof Cybulski
      1	Kevin Kirsche
      1	KIU Shueng Chuan
      1	Jonathan Slenders
      1	Jay Qi
      1	Jake VanderPlas
      1	Iwan Briquemont
      1	Hussaina Begum Nandyala
      1	Gordon Ball
      1	Gabriel Simonetto
      1	Frank Tobia
      1	Erik
      1	Elliott Sales de Andrade
      1	Daniel Hahler
      1	Dan Green-Leipciger
      1	Dan Green
      1	Damian Yurzola
      1	Coon, Ethan T
      1	Carol Willing
      1	Brian Lee
      1	Brendan Gerrity
      1	Blake Griffin
      1	Bastian Ebeling
      1	Bartosz Telenczuk
      1	Ankitsingh6299
      1	Andrew Port
      1	Andrew J. Hesford
      1	Albert Zhang
      1	Adam Johnson
 
 This does not, of course, represent non-code contributions, for which we are also grateful.
 
 
 API Changes using Frappuccino
 -----------------------------
 
 This is an experimental exhaustive API difference using `Frappuccino <https://pypi.org/project/frappuccino/>`_
 
 
 The following items are new in IPython 8.0 ::
 
     + IPython.core.async_helpers.get_asyncio_loop()
     + IPython.core.completer.Dict
     + IPython.core.completer.Pattern
     + IPython.core.completer.Sequence
     + IPython.core.completer.__skip_doctest__
     + IPython.core.debugger.Pdb.precmd(self, line)
     + IPython.core.debugger.__skip_doctest__
     + IPython.core.display.__getattr__(name)
     + IPython.core.display.warn
     + IPython.core.display_functions
     + IPython.core.display_functions.DisplayHandle
     + IPython.core.display_functions.DisplayHandle.display(self, obj, **kwargs)
     + IPython.core.display_functions.DisplayHandle.update(self, obj, **kwargs)
     + IPython.core.display_functions.__all__
     + IPython.core.display_functions.__builtins__
     + IPython.core.display_functions.__cached__
     + IPython.core.display_functions.__doc__
     + IPython.core.display_functions.__file__
     + IPython.core.display_functions.__loader__
     + IPython.core.display_functions.__name__
     + IPython.core.display_functions.__package__
     + IPython.core.display_functions.__spec__
     + IPython.core.display_functions.b2a_hex
     + IPython.core.display_functions.clear_output(wait=False)
     + IPython.core.display_functions.display(*objs, include='None', exclude='None', metadata='None', transient='None', display_id='None', raw=False, clear=False, **kwargs)
     + IPython.core.display_functions.publish_display_data(data, metadata='None', source='<deprecated>', *, transient='None', **kwargs)
     + IPython.core.display_functions.update_display(obj, *, display_id, **kwargs)
     + IPython.core.extensions.BUILTINS_EXTS
     + IPython.core.inputtransformer2.has_sunken_brackets(tokens)
     + IPython.core.interactiveshell.Callable
     + IPython.core.interactiveshell.__annotations__
     + IPython.core.ultratb.List
     + IPython.core.ultratb.Tuple
     + IPython.lib.pretty.CallExpression
     + IPython.lib.pretty.CallExpression.factory(name)
     + IPython.lib.pretty.RawStringLiteral
     + IPython.lib.pretty.RawText
     + IPython.terminal.debugger.TerminalPdb.do_interact(self, arg)
     + IPython.terminal.embed.Set
 
 The following items have been removed (or moved to superclass)::
 
     - IPython.core.application.BaseIPythonApplication.initialize_subcommand
     - IPython.core.completer.Sentinel
     - IPython.core.completer.skip_doctest
     - IPython.core.debugger.Tracer
     - IPython.core.display.DisplayHandle
     - IPython.core.display.DisplayHandle.display
     - IPython.core.display.DisplayHandle.update
     - IPython.core.display.b2a_hex
     - IPython.core.display.clear_output
     - IPython.core.display.display
     - IPython.core.display.publish_display_data
     - IPython.core.display.update_display
     - IPython.core.excolors.Deprec
     - IPython.core.excolors.ExceptionColors
     - IPython.core.history.warn
     - IPython.core.hooks.late_startup_hook
     - IPython.core.hooks.pre_run_code_hook
     - IPython.core.hooks.shutdown_hook
     - IPython.core.interactiveshell.InteractiveShell.init_deprecation_warnings
     - IPython.core.interactiveshell.InteractiveShell.init_readline
     - IPython.core.interactiveshell.InteractiveShell.write
     - IPython.core.interactiveshell.InteractiveShell.write_err
     - IPython.core.interactiveshell.get_default_colors
     - IPython.core.interactiveshell.removed_co_newlocals
     - IPython.core.magics.execution.ExecutionMagics.profile_missing_notice
     - IPython.core.magics.script.PIPE
     - IPython.core.prefilter.PrefilterManager.init_transformers
     - IPython.core.release.classifiers
     - IPython.core.release.description
     - IPython.core.release.keywords
     - IPython.core.release.long_description
     - IPython.core.release.name
     - IPython.core.release.platforms
     - IPython.core.release.url
     - IPython.core.ultratb.VerboseTB.format_records
     - IPython.core.ultratb.find_recursion
     - IPython.core.ultratb.findsource
     - IPython.core.ultratb.fix_frame_records_filenames
     - IPython.core.ultratb.inspect_error
     - IPython.core.ultratb.is_recursion_error
     - IPython.core.ultratb.with_patch_inspect
     - IPython.external.__all__
     - IPython.external.__builtins__
     - IPython.external.__cached__
     - IPython.external.__doc__
     - IPython.external.__file__
     - IPython.external.__loader__
     - IPython.external.__name__
     - IPython.external.__package__
     - IPython.external.__path__
     - IPython.external.__spec__
     - IPython.kernel.KernelConnectionInfo
     - IPython.kernel.__builtins__
     - IPython.kernel.__cached__
     - IPython.kernel.__warningregistry__
     - IPython.kernel.pkg
     - IPython.kernel.protocol_version
     - IPython.kernel.protocol_version_info
     - IPython.kernel.src
     - IPython.kernel.version_info
     - IPython.kernel.warn
     - IPython.lib.backgroundjobs
     - IPython.lib.backgroundjobs.BackgroundJobBase
     - IPython.lib.backgroundjobs.BackgroundJobBase.run
     - IPython.lib.backgroundjobs.BackgroundJobBase.traceback
     - IPython.lib.backgroundjobs.BackgroundJobExpr
     - IPython.lib.backgroundjobs.BackgroundJobExpr.call
     - IPython.lib.backgroundjobs.BackgroundJobFunc
     - IPython.lib.backgroundjobs.BackgroundJobFunc.call
     - IPython.lib.backgroundjobs.BackgroundJobManager
     - IPython.lib.backgroundjobs.BackgroundJobManager.flush
     - IPython.lib.backgroundjobs.BackgroundJobManager.new
     - IPython.lib.backgroundjobs.BackgroundJobManager.remove
     - IPython.lib.backgroundjobs.BackgroundJobManager.result
     - IPython.lib.backgroundjobs.BackgroundJobManager.status
     - IPython.lib.backgroundjobs.BackgroundJobManager.traceback
     - IPython.lib.backgroundjobs.__builtins__
     - IPython.lib.backgroundjobs.__cached__
     - IPython.lib.backgroundjobs.__doc__
     - IPython.lib.backgroundjobs.__file__
     - IPython.lib.backgroundjobs.__loader__
     - IPython.lib.backgroundjobs.__name__
     - IPython.lib.backgroundjobs.__package__
     - IPython.lib.backgroundjobs.__spec__
     - IPython.lib.kernel.__builtins__
     - IPython.lib.kernel.__cached__
     - IPython.lib.kernel.__doc__
     - IPython.lib.kernel.__file__
     - IPython.lib.kernel.__loader__
     - IPython.lib.kernel.__name__
     - IPython.lib.kernel.__package__
     - IPython.lib.kernel.__spec__
     - IPython.lib.kernel.__warningregistry__
     - IPython.paths.fs_encoding
     - IPython.terminal.debugger.DEFAULT_BUFFER
     - IPython.terminal.debugger.cursor_in_leading_ws
     - IPython.terminal.debugger.emacs_insert_mode
     - IPython.terminal.debugger.has_selection
     - IPython.terminal.debugger.vi_insert_mode
     - IPython.terminal.interactiveshell.DISPLAY_BANNER_DEPRECATED
     - IPython.terminal.ipapp.TerminalIPythonApp.parse_command_line
     - IPython.testing.test
     - IPython.utils.contexts.NoOpContext
     - IPython.utils.io.IOStream
     - IPython.utils.io.IOStream.close
     - IPython.utils.io.IOStream.write
     - IPython.utils.io.IOStream.writelines
     - IPython.utils.io.__warningregistry__
     - IPython.utils.io.atomic_writing
     - IPython.utils.io.stderr
     - IPython.utils.io.stdin
     - IPython.utils.io.stdout
     - IPython.utils.io.unicode_std_stream
     - IPython.utils.path.get_ipython_cache_dir
     - IPython.utils.path.get_ipython_dir
     - IPython.utils.path.get_ipython_module_path
     - IPython.utils.path.get_ipython_package_dir
     - IPython.utils.path.locate_profile
     - IPython.utils.path.unquote_filename
     - IPython.utils.py3compat.PY2
     - IPython.utils.py3compat.PY3
     - IPython.utils.py3compat.buffer_to_bytes
     - IPython.utils.py3compat.builtin_mod_name
     - IPython.utils.py3compat.cast_bytes
     - IPython.utils.py3compat.getcwd
     - IPython.utils.py3compat.isidentifier
     - IPython.utils.py3compat.u_format
 
 The following signatures differ between 7.x and 8.0::
 
     - IPython.core.completer.IPCompleter.unicode_name_matches(self, text)
     + IPython.core.completer.IPCompleter.unicode_name_matches(text)
 
     - IPython.core.completer.match_dict_keys(keys, prefix, delims)
     + IPython.core.completer.match_dict_keys(keys, prefix, delims, extra_prefix='None')
 
     - IPython.core.interactiveshell.InteractiveShell.object_inspect_mime(self, oname, detail_level=0)
     + IPython.core.interactiveshell.InteractiveShell.object_inspect_mime(self, oname, detail_level=0, omit_sections='()')
 
     - IPython.core.interactiveshell.InteractiveShell.set_hook(self, name, hook, priority=50, str_key='None', re_key='None', _warn_deprecated=True)
     + IPython.core.interactiveshell.InteractiveShell.set_hook(self, name, hook, priority=50, str_key='None', re_key='None')
 
     - IPython.core.oinspect.Inspector.info(self, obj, oname='', formatter='None', info='None', detail_level=0)
     + IPython.core.oinspect.Inspector.info(self, obj, oname='', info='None', detail_level=0)
 
     - IPython.core.oinspect.Inspector.pinfo(self, obj, oname='', formatter='None', info='None', detail_level=0, enable_html_pager=True)
     + IPython.core.oinspect.Inspector.pinfo(self, obj, oname='', formatter='None', info='None', detail_level=0, enable_html_pager=True, omit_sections='()')
 
     - IPython.core.profiledir.ProfileDir.copy_config_file(self, config_file, path='None', overwrite=False)
     + IPython.core.profiledir.ProfileDir.copy_config_file(self, config_file, path, overwrite=False)
 
     - IPython.core.ultratb.VerboseTB.format_record(self, frame, file, lnum, func, lines, index)
     + IPython.core.ultratb.VerboseTB.format_record(self, frame_info)
 
     - IPython.terminal.embed.InteractiveShellEmbed.mainloop(self, local_ns='None', module='None', stack_depth=0, display_banner='None', global_ns='None', compile_flags='None')
     + IPython.terminal.embed.InteractiveShellEmbed.mainloop(self, local_ns='None', module='None', stack_depth=0, compile_flags='None')
 
     - IPython.terminal.embed.embed(**kwargs)
     + IPython.terminal.embed.embed(*, header='', compile_flags='None', **kwargs)
 
     - IPython.terminal.interactiveshell.TerminalInteractiveShell.interact(self, display_banner='<object object at 0xffffff>')
     + IPython.terminal.interactiveshell.TerminalInteractiveShell.interact(self)
 
     - IPython.terminal.interactiveshell.TerminalInteractiveShell.mainloop(self, display_banner='<object object at 0xffffff>')
     + IPython.terminal.interactiveshell.TerminalInteractiveShell.mainloop(self)
 
     - IPython.utils.path.get_py_filename(name, force_win32='None')
     + IPython.utils.path.get_py_filename(name)
 
 The following are new attributes (that might be inherited)::
 
     + IPython.core.completer.IPCompleter.unicode_names
     + IPython.core.debugger.InterruptiblePdb.precmd
     + IPython.core.debugger.Pdb.precmd
     + IPython.core.ultratb.AutoFormattedTB.has_colors
     + IPython.core.ultratb.ColorTB.has_colors
     + IPython.core.ultratb.FormattedTB.has_colors
     + IPython.core.ultratb.ListTB.has_colors
     + IPython.core.ultratb.SyntaxTB.has_colors
     + IPython.core.ultratb.TBTools.has_colors
     + IPython.core.ultratb.VerboseTB.has_colors
     + IPython.terminal.debugger.TerminalPdb.do_interact
     + IPython.terminal.debugger.TerminalPdb.precmd
 
 The following attribute/methods have been removed::
 
     - IPython.core.application.BaseIPythonApplication.deprecated_subcommands
     - IPython.core.ultratb.AutoFormattedTB.format_records
     - IPython.core.ultratb.ColorTB.format_records
     - IPython.core.ultratb.FormattedTB.format_records
     - IPython.terminal.embed.InteractiveShellEmbed.init_deprecation_warnings
     - IPython.terminal.embed.InteractiveShellEmbed.init_readline
     - IPython.terminal.embed.InteractiveShellEmbed.write
     - IPython.terminal.embed.InteractiveShellEmbed.write_err
     - IPython.terminal.interactiveshell.TerminalInteractiveShell.init_deprecation_warnings
     - IPython.terminal.interactiveshell.TerminalInteractiveShell.init_readline
     - IPython.terminal.interactiveshell.TerminalInteractiveShell.write
     - IPython.terminal.interactiveshell.TerminalInteractiveShell.write_err
     - IPython.terminal.ipapp.LocateIPythonApp.deprecated_subcommands
     - IPython.terminal.ipapp.LocateIPythonApp.initialize_subcommand
     - IPython.terminal.ipapp.TerminalIPythonApp.deprecated_subcommands
     - IPython.terminal.ipapp.TerminalIPythonApp.initialize_subcommand
 
 ------
 
-.. [1] If this make you incomfortable feel free to not use IPython 8.23.
+.. [1] If this make you uncomfortable feel free to not use IPython 8.23.