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1 | 1 | ===================== |
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2 | 2 | Development version |
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3 | 3 | ===================== |
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4 | 4 | |
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5 | 5 | This document describes in-flight development work. |
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6 | 6 | |
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7 | 7 | .. warning:: |
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8 | 8 | |
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9 | 9 | Please do not edit this file by hand (doing so will likely cause merge |
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10 | 10 | conflicts for other Pull Requests). Instead, create a new file in the |
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11 | 11 | `docs/source/whatsnew/pr` folder |
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12 | 12 | |
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13 | 13 | |
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14 | 14 | Released .... ...., 2017 |
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15 | 15 | |
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16 | 16 | |
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17 | 17 | Need to be updated: |
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18 | 18 | |
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19 | 19 | .. toctree:: |
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20 | 20 | :maxdepth: 2 |
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21 | 21 | :glob: |
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22 | 22 | |
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23 | 23 | pr/* |
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24 | 24 | |
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25 | 25 | |
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26 | ||
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26 | 27 | .. DO NOT EDIT THIS LINE BEFORE RELEASE. FEATURE INSERTION POINT. |
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27 | 28 | |
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28 | 29 | |
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29 | 30 | Backwards incompatible changes |
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30 | 31 | ------------------------------ |
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31 | 32 | |
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32 | 33 | .. DO NOT EDIT THIS LINE BEFORE RELEASE. INCOMPAT INSERTION POINT. |
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1 | 1 | ============ |
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2 | 2 | 7.x Series |
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3 | 3 | ============ |
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4 | 4 | |
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5 | .. _version780: | |
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6 | ||
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7 | IPython 7.8.0 | |
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8 | ============= | |
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9 | ||
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10 | IPython 7.8.0 contain a few bugfix and 2 new APIs: | |
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11 | ||
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12 | - Enable changing the font color for LaTeX rendering :ghpull:`11840` | |
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13 | - and Re-Expose some PDB API (see below) | |
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14 | ||
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15 | Expose Pdb API | |
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16 | -------------- | |
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17 | ||
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18 | Expose the built-in ``pdb.Pdb`` API. ``Pdb`` constructor arguments are generically | |
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19 | exposed, regardless of python version. | |
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20 | Newly exposed arguments: | |
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21 | ||
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22 | - ``skip`` - Python 3.1+ | |
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23 | - ``nosiginnt`` - Python 3.2+ | |
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24 | - ``readrc`` - Python 3.6+ | |
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25 | ||
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26 | Try it out:: | |
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27 | ||
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28 | from IPython.terminal.debugger import TerminalPdb | |
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29 | pdb = TerminalPdb(skip=["skipthismodule"]) | |
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30 | ||
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31 | ||
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32 | See :ghpull:`11840` | |
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33 | ||
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5 | 34 | .. _version770: |
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6 | 35 | |
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7 | 36 | IPython 7.7.0 |
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8 | 37 | ============= |
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9 | 38 | |
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10 | 39 | IPython 7.7.0 contain multiple bug fixes and documentation updates; Here are a |
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11 | 40 | few of the outstanding issue fixed: |
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12 | 41 | |
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13 | 42 | - Fix a bug introduced in 7.6 where the ``%matplotlib`` magic would fail on |
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14 | 43 | previously acceptable arguments :ghpull:`11814`. |
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15 | 44 | - Fix the manage location on freebsd :ghpull:`11808`. |
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16 | 45 | - Fix error message about aliases after ``%reset`` call in ipykernel |
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17 | 46 | :ghpull:`11806` |
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18 | 47 | - Fix Duplication completions in emacs :ghpull:`11803` |
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19 | 48 | |
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20 | 49 | We are planning to adopt `NEP29 <https://github.com/numpy/numpy/pull/14086>`_ |
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21 | 50 | (still currently in draft) which may make this minor version of IPython the |
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22 | 51 | last one to support Python 3.5 and will make the code base more aggressive |
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23 | 52 | toward removing compatibility with older versions of Python. |
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24 | 53 | |
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25 | 54 | GitHub now support to give only "Triage" permissions to users; if you'd like to |
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26 | 55 | help close stale issues and labels issues please reach to us with your GitHub |
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27 | 56 | Username and we'll add you to the triage team. It is a great way to start |
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28 | 57 | contributing and a path toward getting commit rights. |
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29 | 58 | |
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30 | 59 | .. _version761: |
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31 | 60 | |
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32 | 61 | IPython 7.6.1 |
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33 | 62 | ============= |
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34 | 63 | |
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35 | 64 | IPython 7.6.1 contain a critical bugfix in the ``%timeit`` magic, which would |
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36 | 65 | crash on some inputs as a side effect of :ghpull:`11716`. See :ghpull:`11812` |
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37 | 66 | |
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38 | 67 | |
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39 | 68 | .. _whatsnew760: |
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40 | 69 | |
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41 | 70 | IPython 7.6.0 |
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42 | 71 | ============= |
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43 | 72 | |
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44 | 73 | IPython 7.6.0 contains a couple of bug fixes and number of small features |
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45 | 74 | additions as well as some compatibility with the current development version of |
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46 | 75 | Python 3.8. |
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47 | 76 | |
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48 | 77 | - Add a ``-l`` option to :magic:`psearch` to list the available search |
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49 | 78 | types. :ghpull:`11672` |
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50 | 79 | - Support ``PathLike`` for ``DisplayObject`` and ``Image``. :ghpull:`11764` |
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51 | 80 | - Configurability of timeout in the test suite for slow platforms. |
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52 | 81 | :ghpull:`11756` |
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53 | 82 | - Accept any casing for matplotlib backend. :ghpull:`121748` |
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54 | 83 | - Properly skip test that requires numpy to be installed :ghpull:`11723` |
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55 | 84 | - More support for Python 3.8 and positional only arguments (pep570) |
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56 | 85 | :ghpull:`11720` |
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57 | 86 | - Unicode names for the completion are loaded lazily on first use which |
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58 | 87 | should decrease startup time. :ghpull:`11693` |
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59 | 88 | - Autoreload now update the types of reloaded objects; this for example allow |
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60 | 89 | pickling of reloaded objects. :ghpull:`11644` |
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61 | 90 | - Fix a bug where ``%%time`` magic would suppress cell output. :ghpull:`11716` |
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62 | 91 | |
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63 | 92 | |
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64 | 93 | Prepare migration to pytest (instead of nose) for testing |
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65 | 94 | --------------------------------------------------------- |
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66 | 95 | |
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67 | 96 | Most of the work between 7.5 and 7.6 was to prepare the migration from our |
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68 | 97 | testing framework to pytest. Most of the test suite should now work by simply |
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69 | 98 | issuing ``pytest`` from the root of the repository. |
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70 | 99 | |
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71 | 100 | The migration to pytest is just at its beginning. Many of our test still rely |
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72 | 101 | on IPython-specific plugins for nose using pytest (doctest using IPython syntax |
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73 | 102 | is one example of this where test appear as "passing", while no code has been |
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74 | 103 | ran). Many test also need to be updated like ``yield-test`` to be properly |
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75 | 104 | parametrized tests. |
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76 | 105 | |
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77 | 106 | Migration to pytest allowed me to discover a number of issues in our test |
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78 | 107 | suite; which was hiding a number of subtle issues – or not actually running |
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79 | 108 | some of the tests in our test suite – I have thus corrected many of those; like |
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80 | 109 | improperly closed resources; or used of deprecated features. I also made use of |
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81 | 110 | the ``pytest --durations=...`` to find some of our slowest test and speed them |
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82 | 111 | up (our test suite can now be up to 10% faster). Pytest as also a variety of |
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83 | 112 | plugins and flags which will make the code quality of IPython and the testing |
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84 | 113 | experience better. |
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85 | 114 | |
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86 | 115 | Misc |
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87 | 116 | ---- |
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88 | 117 | |
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89 | 118 | We skipped the release of 7.6 at the end of May, but will attempt to get back |
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90 | 119 | on schedule. We are starting to think about making introducing backward |
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91 | 120 | incompatible change and start the 8.0 series. |
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92 | 121 | |
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93 | 122 | Special Thanks to Gabriel (@gpotter2 on GitHub), who among other took care many |
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94 | 123 | of the remaining task for 7.4 and 7.5, like updating the website. |
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95 | 124 | |
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96 | 125 | .. _whatsnew750: |
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97 | 126 | |
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98 | 127 | IPython 7.5.0 |
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99 | 128 | ============= |
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100 | 129 | |
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101 | 130 | IPython 7.5.0 consist mostly of bug-fixes, and documentation updates, with one |
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102 | 131 | minor new feature. The `Audio` display element can now be assigned an element |
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103 | 132 | id when displayed in browser. See :ghpull:`11670` |
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104 | 133 | |
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105 | 134 | The major outstanding bug fix correct a change of behavior that was introduce |
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106 | 135 | in 7.4.0 where some cell magics would not be able to access or modify global |
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107 | 136 | scope when using the ``@needs_local_scope`` decorator. This was typically |
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108 | 137 | encountered with the ``%%time`` and ``%%timeit`` magics. See :ghissue:`11659` |
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109 | 138 | and :ghpull:`11698`. |
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110 | 139 | |
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111 | 140 | .. _whatsnew740: |
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112 | 141 | |
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113 | 142 | IPython 7.4.0 |
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114 | 143 | ============= |
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115 | 144 | |
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116 | 145 | Unicode name completions |
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117 | 146 | ------------------------ |
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118 | 147 | |
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119 | 148 | Previously, we provided completion for a unicode name with its relative symbol. |
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120 | 149 | With this, now IPython provides complete suggestions to unicode name symbols. |
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121 | 150 | |
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122 | 151 | As on the PR, if user types ``\LAT<tab>``, IPython provides a list of |
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123 | 152 | possible completions. In this case, it would be something like:: |
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124 | 153 | |
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125 | 154 | 'LATIN CAPITAL LETTER A', |
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126 | 155 | 'LATIN CAPITAL LETTER B', |
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127 | 156 | 'LATIN CAPITAL LETTER C', |
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128 | 157 | 'LATIN CAPITAL LETTER D', |
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129 | 158 | .... |
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130 | 159 | |
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131 | 160 | This help to type unicode character that do not have short latex aliases, and |
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132 | 161 | have long unicode names. for example ``Ͱ``, ``\GREEK CAPITAL LETTER HETA``. |
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133 | 162 | |
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134 | 163 | This feature was contributed by Luciana Marques :ghpull:`11583`. |
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135 | 164 | |
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136 | 165 | Make audio normalization optional |
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137 | 166 | --------------------------------- |
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138 | 167 | |
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139 | 168 | Added 'normalize' argument to `IPython.display.Audio`. This argument applies |
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140 | 169 | when audio data is given as an array of samples. The default of `normalize=True` |
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141 | 170 | preserves prior behavior of normalizing the audio to the maximum possible range. |
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142 | 171 | Setting to `False` disables normalization. |
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143 | 172 | |
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144 | 173 | |
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145 | 174 | Miscellaneous |
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146 | 175 | ------------- |
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147 | 176 | |
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148 | 177 | - Fix improper acceptation of ``return`` outside of functions. :ghpull:`11641`. |
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149 | 178 | - Fixed PyQt 5.11 backwards incompatibility causing sip import failure. |
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150 | 179 | :ghpull:`11613`. |
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151 | 180 | - Fix Bug where ``type?`` would crash IPython. :ghpull:`1608`. |
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152 | 181 | - Allow to apply ``@needs_local_scope`` to cell magics for convenience. |
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153 | 182 | :ghpull:`11542`. |
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154 | 183 | |
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155 | 184 | .. _whatsnew730: |
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156 | 185 | |
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157 | 186 | IPython 7.3.0 |
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158 | 187 | ============= |
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159 | 188 | |
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160 | 189 | .. _whatsnew720: |
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161 | 190 | |
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162 | 191 | IPython 7.3.0 bring several bug fixes and small improvements that you will |
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163 | 192 | described bellow. |
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164 | 193 | |
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165 | 194 | The biggest change to this release is the implementation of the ``%conda`` and |
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166 | 195 | ``%pip`` magics, that will attempt to install packages in the **current |
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167 | 196 | environment**. You may still need to restart your interpreter or kernel for the |
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168 | 197 | change to be taken into account, but it should simplify installation of packages |
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169 | 198 | into remote environment. Installing using pip/conda from the command line is |
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170 | 199 | still the prefer method. |
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171 | 200 | |
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172 | 201 | The ``%pip`` magic was already present, but was only printing a warning; now it |
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173 | 202 | will actually forward commands to pip. |
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174 | 203 | |
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175 | 204 | Misc bug fixes and improvements: |
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176 | 205 | |
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177 | 206 | - Compatibility with Python 3.8. |
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178 | 207 | - Do not expand shell variable in execution magics, and added the |
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179 | 208 | ``no_var_expand`` decorator for magic requiring a similar functionality |
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180 | 209 | :ghpull:`11516` |
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181 | 210 | - Add ``%pip`` and ``%conda`` magic :ghpull:`11524` |
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182 | 211 | - Re-initialize posix aliases after a ``%reset`` :ghpull:`11528` |
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183 | 212 | - Allow the IPython command line to run ``*.ipynb`` files :ghpull:`11529` |
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184 | 213 | |
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185 | 214 | IPython 7.2.0 |
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186 | 215 | ============= |
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187 | 216 | |
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188 | 217 | IPython 7.2.0 brings minor bugfixes, improvements, and new configuration options: |
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189 | 218 | |
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190 | 219 | - Fix a bug preventing PySide2 GUI integration from working :ghpull:`11464` |
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191 | 220 | - Run CI on Mac OS ! :ghpull:`11471` |
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192 | 221 | - Fix IPython "Demo" mode. :ghpull:`11498` |
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193 | 222 | - Fix ``%run`` magic with path in name :ghpull:`11499` |
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194 | 223 | - Fix: add CWD to sys.path *after* stdlib :ghpull:`11502` |
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195 | 224 | - Better rendering of signatures, especially long ones. :ghpull:`11505` |
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196 | 225 | - Re-enable jedi by default if it's installed :ghpull:`11506` |
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197 | 226 | - Add New ``minimal`` exception reporting mode (useful for educational purpose). See :ghpull:`11509` |
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198 | 227 | |
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199 | 228 | |
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200 | 229 | Added ability to show subclasses when using pinfo and other utilities |
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201 | 230 | --------------------------------------------------------------------- |
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202 | 231 | |
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203 | 232 | When using ``?``/``??`` on a class, IPython will now list the first 10 subclasses. |
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204 | 233 | |
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205 | 234 | Special Thanks to Chris Mentzel of the Moore Foundation for this feature. Chris |
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206 | 235 | is one of the people who played a critical role in IPython/Jupyter getting |
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207 | 236 | funding. |
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208 | 237 | |
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209 | 238 | We are grateful for all the help Chris has given us over the years, |
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210 | 239 | and we're now proud to have code contributed by Chris in IPython. |
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211 | 240 | |
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212 | 241 | OSMagics.cd_force_quiet configuration option |
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213 | 242 | -------------------------------------------- |
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214 | 243 | |
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215 | 244 | You can set this option to force the %cd magic to behave as if ``-q`` was passed: |
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216 | 245 | :: |
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217 | 246 | |
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218 | 247 | In [1]: cd / |
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219 | 248 | / |
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220 | 249 | |
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221 | 250 | In [2]: %config OSMagics.cd_force_quiet = True |
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222 | 251 | |
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223 | 252 | In [3]: cd /tmp |
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224 | 253 | |
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225 | 254 | In [4]: |
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226 | 255 | |
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227 | 256 | See :ghpull:`11491` |
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228 | 257 | |
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229 | 258 | In vi editing mode, whether the prompt includes the current vi mode can now be configured |
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230 | 259 | ----------------------------------------------------------------------------------------- |
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231 | 260 | |
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232 | 261 | Set the ``TerminalInteractiveShell.prompt_includes_vi_mode`` to a boolean value |
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233 | 262 | (default: True) to control this feature. See :ghpull:`11492` |
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234 | 263 | |
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235 | 264 | .. _whatsnew710: |
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236 | 265 | |
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237 | 266 | IPython 7.1.0 |
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238 | 267 | ============= |
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239 | 268 | |
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240 | 269 | IPython 7.1.0 is the first minor release after 7.0.0 and mostly brings fixes to |
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241 | 270 | new features, internal refactoring, and fixes for regressions that happened during the 6.x->7.x |
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242 | 271 | transition. It also brings **Compatibility with Python 3.7.1**, as we're |
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243 | 272 | unwillingly relying on a bug in CPython. |
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244 | 273 | |
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245 | 274 | New Core Dev: |
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246 | 275 | |
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247 | 276 | - We welcome Jonathan Slenders to the commiters. Jonathan has done a fantastic |
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248 | 277 | work on prompt_toolkit, and we'd like to recognise his impact by giving him |
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249 | 278 | commit rights. :ghissue:`11397` |
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250 | 279 | |
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251 | 280 | Notable Changes |
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252 | 281 | |
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253 | 282 | - Major update of "latex to unicode" tab completion map (see below) |
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254 | 283 | |
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255 | 284 | Notable New Features: |
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256 | 285 | |
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257 | 286 | - Restore functionality and documentation of the **sphinx directive**, which |
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258 | 287 | is now stricter (fail on error by daefault), has new configuration options, |
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259 | 288 | has a brand new documentation page :ref:`ipython_directive` (which needs |
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260 | 289 | some cleanup). It is also now *tested* so we hope to have less regressions. |
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261 | 290 | :ghpull:`11402` |
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262 | 291 | |
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263 | 292 | - ``IPython.display.Video`` now supports ``width`` and ``height`` arguments, |
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264 | 293 | allowing a custom width and height to be set instead of using the video's |
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265 | 294 | width and height. :ghpull:`11353` |
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266 | 295 | |
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267 | 296 | - Warn when using ``HTML('<iframe>')`` instead of ``IFrame`` :ghpull:`11350` |
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268 | 297 | |
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269 | 298 | - Allow Dynamic switching of editing mode between vi/emacs and show |
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270 | 299 | normal/input mode in prompt when using vi. :ghpull:`11390`. Use ``%config |
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271 | 300 | TerminalInteractiveShell.editing_mode = 'vi'`` or ``%config |
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272 | 301 | TerminalInteractiveShell.editing_mode = 'emacs'`` to dynamically switch |
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273 | 302 | between modes. |
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274 | 303 | |
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275 | 304 | |
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276 | 305 | Notable Fixes: |
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277 | 306 | |
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278 | 307 | - Fix entering of **multi-line blocks in terminal** IPython, and various |
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279 | 308 | crashes in the new input transformation machinery :ghpull:`11354`, |
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280 | 309 | :ghpull:`11356`, :ghpull:`11358`. These also fix a **Compatibility bug |
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281 | 310 | with Python 3.7.1**. |
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282 | 311 | |
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283 | 312 | - Fix moving through generator stack in ipdb :ghpull:`11266` |
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284 | 313 | |
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285 | 314 | - %Magic command arguments now support quoting. :ghpull:`11330` |
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286 | 315 | |
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287 | 316 | - Re-add ``rprint`` and ``rprinte`` aliases. :ghpull:`11331` |
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288 | 317 | |
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289 | 318 | - Remove implicit dependency on ``ipython_genutils`` :ghpull:`11317` |
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290 | 319 | |
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291 | 320 | - Make ``nonlocal`` raise ``SyntaxError`` instead of silently failing in async |
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292 | 321 | mode. :ghpull:`11382` |
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293 | 322 | |
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294 | 323 | - Fix mishandling of magics and ``= !`` assignment just after a dedent in |
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295 | 324 | nested code blocks :ghpull:`11418` |
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296 | 325 | |
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297 | 326 | - Fix instructions for custom shortcuts :ghpull:`11426` |
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298 | 327 | |
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299 | 328 | |
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300 | 329 | Notable Internals improvements: |
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301 | 330 | |
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302 | 331 | - Use of ``os.scandir`` (Python 3 only) to speed up some file system operations. |
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303 | 332 | :ghpull:`11365` |
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304 | 333 | |
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305 | 334 | - use ``perf_counter`` instead of ``clock`` for more precise |
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306 | 335 | timing results with ``%time`` :ghpull:`11376` |
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307 | 336 | |
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308 | 337 | Many thanks to all the contributors and in particular to ``bartskowron`` and |
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309 | 338 | ``tonyfast`` who handled some pretty complicated bugs in the input machinery. We |
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310 | 339 | had a number of first time contributors and maybe hacktoberfest participants that |
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311 | 340 | made significant contributions and helped us free some time to focus on more |
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312 | 341 | complicated bugs. |
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313 | 342 | |
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314 | 343 | You |
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315 | 344 | can see all the closed issues and Merged PR, new features and fixes `here |
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316 | 345 | <https://github.com/ipython/ipython/issues?utf8=%E2%9C%93&q=+is%3Aclosed+milestone%3A7.1+>`_. |
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317 | 346 | |
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318 | 347 | Unicode Completion update |
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319 | 348 | ------------------------- |
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320 | 349 | |
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321 | 350 | In IPython 7.1 the Unicode completion map has been updated and synchronized with |
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322 | 351 | the Julia language. |
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323 | 352 | |
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324 | 353 | Added and removed character characters: |
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325 | 354 | |
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326 | 355 | ``\jmath`` (``ȷ``), ``\\underleftrightarrow`` (U+034D, combining) have been |
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327 | 356 | added, while ``\\textasciicaron`` have been removed |
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328 | 357 | |
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329 | 358 | Some sequences have seen their prefix removed: |
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330 | 359 | |
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331 | 360 | - 6 characters ``\text...<tab>`` should now be inputed with ``\...<tab>`` directly, |
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332 | 361 | - 45 characters ``\Elz...<tab>`` should now be inputed with ``\...<tab>`` directly, |
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333 | 362 | - 65 characters ``\B...<tab>`` should now be inputed with ``\...<tab>`` directly, |
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334 | 363 | - 450 characters ``\m...<tab>`` should now be inputed with ``\...<tab>`` directly, |
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335 | 364 | |
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336 | 365 | Some sequences have seen their prefix shortened: |
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337 | 366 | |
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338 | 367 | - 5 characters ``\mitBbb...<tab>`` should now be inputed with ``\bbi...<tab>`` directly, |
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339 | 368 | - 52 characters ``\mit...<tab>`` should now be inputed with ``\i...<tab>`` directly, |
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340 | 369 | - 216 characters ``\mbfit...<tab>`` should now be inputed with ``\bi...<tab>`` directly, |
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341 | 370 | - 222 characters ``\mbf...<tab>`` should now be inputed with ``\b...<tab>`` directly, |
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342 | 371 | |
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343 | 372 | A couple of characters had their sequence simplified: |
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344 | 373 | |
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345 | 374 | - ``ð``, type ``\dh<tab>``, instead of ``\eth<tab>`` |
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346 | 375 | - ``ħ``, type ``\hbar<tab>``, instead of ``\Elzxh<tab>`` |
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347 | 376 | - ``ɸ``, type ``\ltphi<tab>``, instead of ``\textphi<tab>`` |
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348 | 377 | - ``ϴ``, type ``\varTheta<tab>``, instead of ``\textTheta<tab>`` |
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349 | 378 | - ``ℇ``, type ``\eulermascheroni<tab>``, instead of ``\Eulerconst<tab>`` |
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350 | 379 | - ``ℎ``, type ``\planck<tab>``, instead of ``\Planckconst<tab>`` |
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351 | 380 | |
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352 | 381 | - U+0336 (COMBINING LONG STROKE OVERLAY), type ``\strike<tab>``, instead of ``\Elzbar<tab>``. |
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353 | 382 | |
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354 | 383 | A couple of sequences have been updated: |
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355 | 384 | |
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356 | 385 | - ``\varepsilon`` now gives ``ɛ`` (GREEK SMALL LETTER EPSILON) instead of ``ε`` (GREEK LUNATE EPSILON SYMBOL), |
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357 | 386 | - ``\underbar`` now gives U+0331 (COMBINING MACRON BELOW) instead of U+0332 (COMBINING LOW LINE). |
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358 | 387 | |
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359 | 388 | |
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360 | 389 | .. _whatsnew700: |
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361 | 390 | |
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362 | 391 | IPython 7.0.0 |
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363 | 392 | ============= |
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364 | 393 | |
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365 | 394 | Released Thursday September 27th, 2018 |
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366 | 395 | |
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367 | 396 | IPython 7 includes major feature improvements. |
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368 | 397 | This is also the second major version of IPython to support only |
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369 | 398 | Python 3 – starting at Python 3.4. Python 2 is still community-supported |
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370 | 399 | on the bugfix only 5.x branch, but we remind you that Python 2 "end of life" |
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371 | 400 | is on Jan 1st 2020. |
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372 | 401 | |
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373 | 402 | We were able to backport bug fixes to the 5.x branch thanks to our backport bot which |
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374 | 403 | backported more than `70 Pull-Requests |
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375 | 404 | <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>`_ |
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376 | 405 | |
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377 | 406 | The IPython 6.x branch will likely not see any further release unless critical |
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378 | 407 | bugs are found. |
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379 | 408 | |
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380 | 409 | Make sure you have pip > 9.0 before upgrading. You should be able to update by running: |
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381 | 410 | |
|
382 | 411 | .. code:: |
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383 | 412 | |
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384 | 413 | pip install ipython --upgrade |
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385 | 414 | |
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386 | 415 | .. only:: ipydev |
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387 | 416 | |
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388 | 417 | If you are trying to install or update an ``alpha``, ``beta``, or ``rc`` |
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389 | 418 | version, use pip ``--pre`` flag. |
|
390 | 419 | |
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391 | 420 | .. code:: |
|
392 | 421 | |
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393 | 422 | pip install ipython --upgrade --pre |
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394 | 423 | |
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395 | 424 | |
|
396 | 425 | Or, if you have conda installed: |
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397 | 426 | |
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398 | 427 | .. code:: |
|
399 | 428 | |
|
400 | 429 | conda install ipython |
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401 | 430 | |
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402 | 431 | |
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403 | 432 | |
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404 | 433 | Prompt Toolkit 2.0 |
|
405 | 434 | ------------------ |
|
406 | 435 | |
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407 | 436 | IPython 7.0+ now uses ``prompt_toolkit 2.0``. If you still need to use an earlier |
|
408 | 437 | ``prompt_toolkit`` version, you may need to pin IPython to ``<7.0``. |
|
409 | 438 | |
|
410 | 439 | Autowait: Asynchronous REPL |
|
411 | 440 | --------------------------- |
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412 | 441 | |
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413 | 442 | Staring with IPython 7.0 on Python 3.6+, IPython can automatically ``await`` |
|
414 | 443 | top level code. You should not need to access an event loop or runner |
|
415 | 444 | yourself. To learn more, read the :ref:`autoawait` section of our docs, see |
|
416 | 445 | :ghpull:`11265`, or try the following code:: |
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417 | 446 | |
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418 | 447 | Python 3.6.0 |
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419 | 448 | Type 'copyright', 'credits' or 'license' for more information |
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420 | 449 | IPython 7.0.0 -- An enhanced Interactive Python. Type '?' for help. |
|
421 | 450 | |
|
422 | 451 | In [1]: import aiohttp |
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423 | 452 | ...: result = aiohttp.get('https://api.github.com') |
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424 | 453 | |
|
425 | 454 | In [2]: response = await result |
|
426 | 455 | <pause for a few 100s ms> |
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427 | 456 | |
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428 | 457 | In [3]: await response.json() |
|
429 | 458 | Out[3]: |
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430 | 459 | {'authorizations_url': 'https://api.github.com/authorizations', |
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431 | 460 | 'code_search_url': 'https://api.github.com/search/code?q={query}{&page,per_page,sort,order}', |
|
432 | 461 | ... |
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433 | 462 | } |
|
434 | 463 | |
|
435 | 464 | .. note:: |
|
436 | 465 | |
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437 | 466 | Async integration is experimental code, behavior may change or be removed |
|
438 | 467 | between Python and IPython versions without warnings. |
|
439 | 468 | |
|
440 | 469 | Integration is by default with `asyncio`, but other libraries can be configured -- |
|
441 | 470 | like ``curio`` or ``trio`` -- to improve concurrency in the REPL:: |
|
442 | 471 | |
|
443 | 472 | In [1]: %autoawait trio |
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444 | 473 | |
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445 | 474 | In [2]: import trio |
|
446 | 475 | |
|
447 | 476 | In [3]: async def child(i): |
|
448 | 477 | ...: print(" child %s goes to sleep"%i) |
|
449 | 478 | ...: await trio.sleep(2) |
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450 | 479 | ...: print(" child %s wakes up"%i) |
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451 | 480 | |
|
452 | 481 | In [4]: print('parent start') |
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453 | 482 | ...: async with trio.open_nursery() as n: |
|
454 | 483 | ...: for i in range(3): |
|
455 | 484 | ...: n.spawn(child, i) |
|
456 | 485 | ...: print('parent end') |
|
457 | 486 | parent start |
|
458 | 487 | child 2 goes to sleep |
|
459 | 488 | child 0 goes to sleep |
|
460 | 489 | child 1 goes to sleep |
|
461 | 490 | <about 2 seconds pause> |
|
462 | 491 | child 2 wakes up |
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463 | 492 | child 1 wakes up |
|
464 | 493 | child 0 wakes up |
|
465 | 494 | parent end |
|
466 | 495 | |
|
467 | 496 | See :ref:`autoawait` for more information. |
|
468 | 497 | |
|
469 | 498 | |
|
470 | 499 | Asynchronous code in a Notebook interface or any other frontend using the |
|
471 | 500 | Jupyter Protocol will require further updates to the IPykernel package. |
|
472 | 501 | |
|
473 | 502 | Non-Asynchronous code |
|
474 | 503 | ~~~~~~~~~~~~~~~~~~~~~ |
|
475 | 504 | |
|
476 | 505 | As the internal API of IPython is now asynchronous, IPython needs to run under |
|
477 | 506 | an event loop. In order to allow many workflows, (like using the :magic:`%run` |
|
478 | 507 | magic, or copy-pasting code that explicitly starts/stop event loop), when |
|
479 | 508 | top-level code is detected as not being asynchronous, IPython code is advanced |
|
480 | 509 | via a pseudo-synchronous runner, and may not advance pending tasks. |
|
481 | 510 | |
|
482 | 511 | Change to Nested Embed |
|
483 | 512 | ~~~~~~~~~~~~~~~~~~~~~~ |
|
484 | 513 | |
|
485 | 514 | The introduction of the ability to run async code had some effect on the |
|
486 | 515 | ``IPython.embed()`` API. By default, embed will not allow you to run asynchronous |
|
487 | 516 | code unless an event loop is specified. |
|
488 | 517 | |
|
489 | 518 | Effects on Magics |
|
490 | 519 | ~~~~~~~~~~~~~~~~~ |
|
491 | 520 | |
|
492 | 521 | Some magics will not work with async until they're updated. |
|
493 | 522 | Contributions welcome. |
|
494 | 523 | |
|
495 | 524 | Expected Future changes |
|
496 | 525 | ~~~~~~~~~~~~~~~~~~~~~~~ |
|
497 | 526 | |
|
498 | 527 | We expect more internal but public IPython functions to become ``async``, and |
|
499 | 528 | will likely end up having a persistent event loop while IPython is running. |
|
500 | 529 | |
|
501 | 530 | Thanks |
|
502 | 531 | ~~~~~~ |
|
503 | 532 | |
|
504 | 533 | This release took more than a year in the making. |
|
505 | 534 | The code was rebased a number of |
|
506 | 535 | times; leading to commit authorship that may have been lost in the final |
|
507 | 536 | Pull-Request. Huge thanks to many people for contribution, discussion, code, |
|
508 | 537 | documentation, use-cases: dalejung, danielballan, ellisonbg, fperez, gnestor, |
|
509 | 538 | minrk, njsmith, pganssle, tacaswell, takluyver , vidartf ... And many others. |
|
510 | 539 | |
|
511 | 540 | |
|
512 | 541 | Autoreload Improvement |
|
513 | 542 | ---------------------- |
|
514 | 543 | |
|
515 | 544 | The magic :magic:`%autoreload 2 <autoreload>` now captures new methods added to |
|
516 | 545 | classes. Earlier, only methods existing as of the initial import were being |
|
517 | 546 | tracked and updated. |
|
518 | 547 | |
|
519 | 548 | This new feature helps dual environment development - Jupyter+IDE - where the |
|
520 | 549 | code gradually moves from notebook cells to package files as it gets |
|
521 | 550 | structured. |
|
522 | 551 | |
|
523 | 552 | **Example**: An instance of the class ``MyClass`` will be able to access the |
|
524 | 553 | method ``cube()`` after it is uncommented and the file ``file1.py`` is saved on |
|
525 | 554 | disk. |
|
526 | 555 | |
|
527 | 556 | |
|
528 | 557 | .. code:: |
|
529 | 558 | |
|
530 | 559 | # notebook |
|
531 | 560 | |
|
532 | 561 | from mymodule import MyClass |
|
533 | 562 | first = MyClass(5) |
|
534 | 563 | |
|
535 | 564 | .. code:: |
|
536 | 565 | |
|
537 | 566 | # mymodule/file1.py |
|
538 | 567 | |
|
539 | 568 | class MyClass: |
|
540 | 569 | |
|
541 | 570 | def __init__(self, a=10): |
|
542 | 571 | self.a = a |
|
543 | 572 | |
|
544 | 573 | def square(self): |
|
545 | 574 | print('compute square') |
|
546 | 575 | return self.a*self.a |
|
547 | 576 | |
|
548 | 577 | # def cube(self): |
|
549 | 578 | # print('compute cube') |
|
550 | 579 | # return self.a*self.a*self.a |
|
551 | 580 | |
|
552 | 581 | |
|
553 | 582 | |
|
554 | 583 | |
|
555 | 584 | Misc |
|
556 | 585 | ---- |
|
557 | 586 | |
|
558 | 587 | The autoindent feature that was deprecated in 5.x was re-enabled and |
|
559 | 588 | un-deprecated in :ghpull:`11257` |
|
560 | 589 | |
|
561 | 590 | Make :magic:`%run -n -i ... <run>` work correctly. Earlier, if :magic:`%run` was |
|
562 | 591 | passed both arguments, ``-n`` would be silently ignored. See :ghpull:`10308` |
|
563 | 592 | |
|
564 | 593 | |
|
565 | 594 | The :cellmagic:`%%script` (as well as :cellmagic:`%%bash`, |
|
566 | 595 | :cellmagic:`%%ruby`... ) cell magics now raise by default if the return code of |
|
567 | 596 | the given code is non-zero (thus halting execution of further cells in a |
|
568 | 597 | notebook). The behavior can be disable by passing the ``--no-raise-error`` flag. |
|
569 | 598 | |
|
570 | 599 | |
|
571 | 600 | Deprecations |
|
572 | 601 | ------------ |
|
573 | 602 | |
|
574 | 603 | A couple of unused functions and methods have been deprecated and will be removed |
|
575 | 604 | in future versions: |
|
576 | 605 | |
|
577 | 606 | - ``IPython.utils.io.raw_print_err`` |
|
578 | 607 | - ``IPython.utils.io.raw_print`` |
|
579 | 608 | |
|
580 | 609 | |
|
581 | 610 | Backwards incompatible changes |
|
582 | 611 | ------------------------------ |
|
583 | 612 | |
|
584 | 613 | * The API for transforming input before it is parsed as Python code has been |
|
585 | 614 | completely redesigned: any custom input transformations will need to be |
|
586 | 615 | rewritten. See :doc:`/config/inputtransforms` for details of the new API. |
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