do not use .magic(...) that has been deprecated for a decade

IPython/core/magics/basic.py

@@ -1,666 +1,666
 """Implementation of basic magic functions."""
 
 
 from logging import error
 import io
 import os
 from pprint import pformat
 import sys
 from warnings import warn
 
 from traitlets.utils.importstring import import_item
 from IPython.core import magic_arguments, page
 from IPython.core.error import UsageError
 from IPython.core.magic import Magics, magics_class, line_magic, magic_escapes
 from IPython.utils.text import format_screen, dedent, indent
 from IPython.testing.skipdoctest import skip_doctest
 from IPython.utils.ipstruct import Struct
 
 
 class MagicsDisplay(object):
     def __init__(self, magics_manager, ignore=None):
         self.ignore = ignore if ignore else []
         self.magics_manager = magics_manager
     
     def _lsmagic(self):
         """The main implementation of the %lsmagic"""
         mesc = magic_escapes['line']
         cesc = magic_escapes['cell']
         mman = self.magics_manager
         magics = mman.lsmagic()
         out = ['Available line magics:',
                mesc + ('  '+mesc).join(sorted([m for m,v in magics['line'].items() if (v not in self.ignore)])),
                '',
                'Available cell magics:',
                cesc + ('  '+cesc).join(sorted([m for m,v in magics['cell'].items() if (v not in self.ignore)])),
                '',
                mman.auto_status()]
         return '\n'.join(out)
 
     def _repr_pretty_(self, p, cycle):
         p.text(self._lsmagic())
     
     def __repr__(self):
         return self.__str__()
 
     def __str__(self):
         return self._lsmagic()
     
     def _jsonable(self):
         """turn magics dict into jsonable dict of the same structure
 
         replaces object instances with their class names as strings
         """
         magic_dict = {}
         mman = self.magics_manager
         magics = mman.lsmagic()
         for key, subdict in magics.items():
             d = {}
             magic_dict[key] = d
             for name, obj in subdict.items():
                 try:
                     classname = obj.__self__.__class__.__name__
                 except AttributeError:
                     classname = 'Other'
                 
                 d[name] = classname
         return magic_dict
         
     def _repr_json_(self):
         return self._jsonable()
 
 
 @magics_class
 class BasicMagics(Magics):
     """Magics that provide central IPython functionality.
 
     These are various magics that don't fit into specific categories but that
     are all part of the base 'IPython experience'."""
 
     @skip_doctest
     @magic_arguments.magic_arguments()
     @magic_arguments.argument(
         '-l', '--line', action='store_true',
         help="""Create a line magic alias."""
     )
     @magic_arguments.argument(
         '-c', '--cell', action='store_true',
         help="""Create a cell magic alias."""
     )
     @magic_arguments.argument(
         'name',
         help="""Name of the magic to be created."""
     )
     @magic_arguments.argument(
         'target',
         help="""Name of the existing line or cell magic."""
     )
     @magic_arguments.argument(
         '-p', '--params', default=None,
         help="""Parameters passed to the magic function."""
     )
     @line_magic
     def alias_magic(self, line=''):
         """Create an alias for an existing line or cell magic.
 
         Examples
         --------
         ::
 
           In [1]: %alias_magic t timeit
           Created `%t` as an alias for `%timeit`.
           Created `%%t` as an alias for `%%timeit`.
 
           In [2]: %t -n1 pass
           107 ns ± 43.6 ns per loop (mean ± std. dev. of 7 runs, 1 loop each)
 
           In [3]: %%t -n1
              ...: pass
              ...:
           107 ns ± 58.3 ns per loop (mean ± std. dev. of 7 runs, 1 loop each)
 
           In [4]: %alias_magic --cell whereami pwd
           UsageError: Cell magic function `%%pwd` not found.
           In [5]: %alias_magic --line whereami pwd
           Created `%whereami` as an alias for `%pwd`.
 
           In [6]: %whereami
           Out[6]: '/home/testuser'
 
           In [7]: %alias_magic h history -p "-l 30" --line
           Created `%h` as an alias for `%history -l 30`.
         """
 
         args = magic_arguments.parse_argstring(self.alias_magic, line)
         shell = self.shell
         mman = self.shell.magics_manager
         escs = ''.join(magic_escapes.values())
 
         target = args.target.lstrip(escs)
         name = args.name.lstrip(escs)
 
         params = args.params
         if (params and
                 ((params.startswith('"') and params.endswith('"'))
                 or (params.startswith("'") and params.endswith("'")))):
             params = params[1:-1]
 
         # Find the requested magics.
         m_line = shell.find_magic(target, 'line')
         m_cell = shell.find_magic(target, 'cell')
         if args.line and m_line is None:
             raise UsageError('Line magic function `%s%s` not found.' %
                              (magic_escapes['line'], target))
         if args.cell and m_cell is None:
             raise UsageError('Cell magic function `%s%s` not found.' %
                              (magic_escapes['cell'], target))
 
         # If --line and --cell are not specified, default to the ones
         # that are available.
         if not args.line and not args.cell:
             if not m_line and not m_cell:
                 raise UsageError(
                     'No line or cell magic with name `%s` found.' % target
                 )
             args.line = bool(m_line)
             args.cell = bool(m_cell)
 
         params_str = "" if params is None else " " + params
 
         if args.line:
             mman.register_alias(name, target, 'line', params)
             print('Created `%s%s` as an alias for `%s%s%s`.' % (
                 magic_escapes['line'], name,
                 magic_escapes['line'], target, params_str))
 
         if args.cell:
             mman.register_alias(name, target, 'cell', params)
             print('Created `%s%s` as an alias for `%s%s%s`.' % (
                 magic_escapes['cell'], name,
                 magic_escapes['cell'], target, params_str))
 
     @line_magic
     def lsmagic(self, parameter_s=''):
         """List currently available magic functions."""
         return MagicsDisplay(self.shell.magics_manager, ignore=[])
 
     def _magic_docs(self, brief=False, rest=False):
         """Return docstrings from magic functions."""
         mman = self.shell.magics_manager
         docs = mman.lsmagic_docs(brief, missing='No documentation')
 
         if rest:
             format_string = '**%s%s**::\n\n%s\n\n'
         else:
             format_string = '%s%s:\n%s\n'
 
         return ''.join(
             [format_string % (magic_escapes['line'], fname,
                               indent(dedent(fndoc)))
              for fname, fndoc in sorted(docs['line'].items())]
             +
             [format_string % (magic_escapes['cell'], fname,
                               indent(dedent(fndoc)))
              for fname, fndoc in sorted(docs['cell'].items())]
         )
 
     @line_magic
     def magic(self, parameter_s=''):
         """Print information about the magic function system.
 
         Supported formats: -latex, -brief, -rest
         """
 
         mode = ''
         try:
             mode = parameter_s.split()[0][1:]
         except IndexError:
             pass
 
         brief = (mode == 'brief')
         rest = (mode == 'rest')
         magic_docs = self._magic_docs(brief, rest)
 
         if mode == 'latex':
             print(self.format_latex(magic_docs))
             return
         else:
             magic_docs = format_screen(magic_docs)
 
         out = ["""
 IPython's 'magic' functions
 ===========================
 
 The magic function system provides a series of functions which allow you to
 control the behavior of IPython itself, plus a lot of system-type
 features. There are two kinds of magics, line-oriented and cell-oriented.
 
 Line magics are prefixed with the % character and work much like OS
 command-line calls: they get as an argument the rest of the line, where
 arguments are passed without parentheses or quotes.  For example, this will
 time the given statement::
 
         %timeit range(1000)
 
 Cell magics are prefixed with a double %%, and they are functions that get as
 an argument not only the rest of the line, but also the lines below it in a
 separate argument.  These magics are called with two arguments: the rest of the
 call line and the body of the cell, consisting of the lines below the first.
 For example::
 
         %%timeit x = numpy.random.randn((100, 100))
         numpy.linalg.svd(x)
 
 will time the execution of the numpy svd routine, running the assignment of x
 as part of the setup phase, which is not timed.
 
 In a line-oriented client (the terminal or Qt console IPython), starting a new
 input with %% will automatically enter cell mode, and IPython will continue
 reading input until a blank line is given.  In the notebook, simply type the
 whole cell as one entity, but keep in mind that the %% escape can only be at
 the very start of the cell.
 
 NOTE: If you have 'automagic' enabled (via the command line option or with the
 %automagic function), you don't need to type in the % explicitly for line
 magics; cell magics always require an explicit '%%' escape.  By default,
 IPython ships with automagic on, so you should only rarely need the % escape.
 
 Example: typing '%cd mydir' (without the quotes) changes your working directory
 to 'mydir', if it exists.
 
 For a list of the available magic functions, use %lsmagic. For a description
 of any of them, type %magic_name?, e.g. '%cd?'.
 
 Currently the magic system has the following functions:""",
        magic_docs,
        "Summary of magic functions (from %slsmagic):" % magic_escapes['line'],
        str(self.lsmagic()),
        ]
         page.page('\n'.join(out))
 
 
     @line_magic
     def page(self, parameter_s=''):
         """Pretty print the object and display it through a pager.
 
         %page [options] OBJECT
 
         If no object is given, use _ (last output).
 
         Options:
 
           -r: page str(object), don't pretty-print it."""
 
         # After a function contributed by Olivier Aubert, slightly modified.
 
         # Process options/args
         opts, args = self.parse_options(parameter_s, 'r')
         raw = 'r' in opts
 
         oname = args and args or '_'
         info = self.shell._ofind(oname)
         if info.found:
             if raw:
                 txt = str(info.obj)
             else:
                 txt = pformat(info.obj)
             page.page(txt)
         else:
             print('Object `%s` not found' % oname)
 
     @line_magic
     def pprint(self, parameter_s=''):
         """Toggle pretty printing on/off."""
         ptformatter = self.shell.display_formatter.formatters['text/plain']
         ptformatter.pprint = bool(1 - ptformatter.pprint)
         print('Pretty printing has been turned',
               ['OFF','ON'][ptformatter.pprint])
 
     @line_magic
     def colors(self, parameter_s=''):
         """Switch color scheme for prompts, info system and exception handlers.
 
         Currently implemented schemes: NoColor, Linux, LightBG.
 
         Color scheme names are not case-sensitive.
 
         Examples
         --------
         To get a plain black and white terminal::
 
           %colors nocolor
         """
         def color_switch_err(name):
             warn('Error changing %s color schemes.\n%s' %
                  (name, sys.exc_info()[1]), stacklevel=2)
 
 
         new_scheme = parameter_s.strip()
         if not new_scheme:
             raise UsageError(
                 "%colors: you must specify a color scheme. See '%colors?'")
         # local shortcut
         shell = self.shell
 
         # Set shell colour scheme
         try:
             shell.colors = new_scheme
             shell.refresh_style()
         except:
             color_switch_err('shell')
 
         # Set exception colors
         try:
             shell.InteractiveTB.set_colors(scheme = new_scheme)
             shell.SyntaxTB.set_colors(scheme = new_scheme)
         except:
             color_switch_err('exception')
 
         # Set info (for 'object?') colors
         if shell.color_info:
             try:
                 shell.inspector.set_active_scheme(new_scheme)
             except:
                 color_switch_err('object inspector')
         else:
             shell.inspector.set_active_scheme('NoColor')
 
     @line_magic
     def xmode(self, parameter_s=''):
         """Switch modes for the exception handlers.
 
         Valid modes: Plain, Context, Verbose, and Minimal.
 
         If called without arguments, acts as a toggle.
 
         When in verbose mode the value `--show` (and `--hide`)
         will respectively show (or hide) frames with ``__tracebackhide__ =
         True`` value set.
         """
 
         def xmode_switch_err(name):
             warn('Error changing %s exception modes.\n%s' %
                  (name,sys.exc_info()[1]))
 
         shell = self.shell
         if parameter_s.strip() == "--show":
             shell.InteractiveTB.skip_hidden = False
             return
         if parameter_s.strip() == "--hide":
             shell.InteractiveTB.skip_hidden = True
             return
 
         new_mode = parameter_s.strip().capitalize()
         try:
             shell.InteractiveTB.set_mode(mode=new_mode)
             print('Exception reporting mode:',shell.InteractiveTB.mode)
         except:
             xmode_switch_err('user')
 
     @line_magic
     def quickref(self, arg):
         """ Show a quick reference sheet """
         from IPython.core.usage import quick_reference
         qr = quick_reference + self._magic_docs(brief=True)
         page.page(qr)
 
     @line_magic
     def doctest_mode(self, parameter_s=''):
         """Toggle doctest mode on and off.
 
         This mode is intended to make IPython behave as much as possible like a
         plain Python shell, from the perspective of how its prompts, exceptions
         and output look.  This makes it easy to copy and paste parts of a
         session into doctests.  It does so by:
 
         - Changing the prompts to the classic ``>>>`` ones.
         - Changing the exception reporting mode to 'Plain'.
         - Disabling pretty-printing of output.
 
         Note that IPython also supports the pasting of code snippets that have
         leading '>>>' and '...' prompts in them.  This means that you can paste
         doctests from files or docstrings (even if they have leading
         whitespace), and the code will execute correctly.  You can then use
         '%history -t' to see the translated history; this will give you the
         input after removal of all the leading prompts and whitespace, which
         can be pasted back into an editor.
 
         With these features, you can switch into this mode easily whenever you
         need to do testing and changes to doctests, without having to leave
         your existing IPython session.
         """
 
         # Shorthands
         shell = self.shell
         meta = shell.meta
         disp_formatter = self.shell.display_formatter
         ptformatter = disp_formatter.formatters['text/plain']
         # dstore is a data store kept in the instance metadata bag to track any
         # changes we make, so we can undo them later.
         dstore = meta.setdefault('doctest_mode',Struct())
         save_dstore = dstore.setdefault
 
         # save a few values we'll need to recover later
         mode = save_dstore('mode',False)
         save_dstore('rc_pprint',ptformatter.pprint)
         save_dstore('xmode',shell.InteractiveTB.mode)
         save_dstore('rc_separate_out',shell.separate_out)
         save_dstore('rc_separate_out2',shell.separate_out2)
         save_dstore('rc_separate_in',shell.separate_in)
         save_dstore('rc_active_types',disp_formatter.active_types)
 
         if not mode:
             # turn on
 
             # Prompt separators like plain python
             shell.separate_in = ''
             shell.separate_out = ''
             shell.separate_out2 = ''
 
 
             ptformatter.pprint = False
             disp_formatter.active_types = ['text/plain']
 
             shell.magic('xmode Plain')
         else:
             # turn off
             shell.separate_in = dstore.rc_separate_in
 
             shell.separate_out = dstore.rc_separate_out
             shell.separate_out2 = dstore.rc_separate_out2
 
             ptformatter.pprint = dstore.rc_pprint
             disp_formatter.active_types = dstore.rc_active_types
 
-            shell.magic('xmode ' + dstore.xmode)
+            shell.run_line_magic("xmode", dstore.xmode)
 
         # mode here is the state before we switch; switch_doctest_mode takes
         # the mode we're switching to.
         shell.switch_doctest_mode(not mode)
 
         # Store new mode and inform
         dstore.mode = bool(not mode)
         mode_label = ['OFF','ON'][dstore.mode]
         print('Doctest mode is:', mode_label)
 
     @line_magic
     def gui(self, parameter_s=''):
         """Enable or disable IPython GUI event loop integration.
 
         %gui [GUINAME]
 
         This magic replaces IPython's threaded shells that were activated
         using the (pylab/wthread/etc.) command line flags.  GUI toolkits
         can now be enabled at runtime and keyboard
         interrupts should work without any problems.  The following toolkits
         are supported:  wxPython, PyQt4, PyGTK, Tk and Cocoa (OSX)::
 
             %gui wx      # enable wxPython event loop integration
             %gui qt      # enable PyQt/PySide event loop integration
                          # with the latest version available.
             %gui qt6     # enable PyQt6/PySide6 event loop integration
             %gui qt5     # enable PyQt5/PySide2 event loop integration
             %gui gtk     # enable PyGTK event loop integration
             %gui gtk3    # enable Gtk3 event loop integration
             %gui gtk4    # enable Gtk4 event loop integration
             %gui tk      # enable Tk event loop integration
             %gui osx     # enable Cocoa event loop integration
                          # (requires %matplotlib 1.1)
             %gui         # disable all event loop integration
 
         WARNING:  after any of these has been called you can simply create
         an application object, but DO NOT start the event loop yourself, as
         we have already handled that.
         """
         opts, arg = self.parse_options(parameter_s, '')
         if arg=='': arg = None
         try:
             return self.shell.enable_gui(arg)
         except Exception as e:
             # print simple error message, rather than traceback if we can't
             # hook up the GUI
             error(str(e))
 
     @skip_doctest
     @line_magic
     def precision(self, s=''):
         """Set floating point precision for pretty printing.
 
         Can set either integer precision or a format string.
 
         If numpy has been imported and precision is an int,
         numpy display precision will also be set, via ``numpy.set_printoptions``.
 
         If no argument is given, defaults will be restored.
 
         Examples
         --------
         ::
 
             In [1]: from math import pi
 
             In [2]: %precision 3
             Out[2]: '%.3f'
 
             In [3]: pi
             Out[3]: 3.142
 
             In [4]: %precision %i
             Out[4]: '%i'
 
             In [5]: pi
             Out[5]: 3
 
             In [6]: %precision %e
             Out[6]: '%e'
 
             In [7]: pi**10
             Out[7]: 9.364805e+04
 
             In [8]: %precision
             Out[8]: '%r'
 
             In [9]: pi**10
             Out[9]: 93648.047476082982
         """
         ptformatter = self.shell.display_formatter.formatters['text/plain']
         ptformatter.float_precision = s
         return ptformatter.float_format
 
     @magic_arguments.magic_arguments()
     @magic_arguments.argument(
         'filename', type=str,
         help='Notebook name or filename'
     )
     @line_magic
     def notebook(self, s):
         """Export and convert IPython notebooks.
 
         This function can export the current IPython history to a notebook file.
         For example, to export the history to "foo.ipynb" do "%notebook foo.ipynb".
         """
         args = magic_arguments.parse_argstring(self.notebook, s)
         outfname = os.path.expanduser(args.filename)
 
         from nbformat import write, v4
 
         cells = []
         hist = list(self.shell.history_manager.get_range())
         if(len(hist)<=1):
             raise ValueError('History is empty, cannot export')
         for session, execution_count, source in hist[:-1]:
             cells.append(v4.new_code_cell(
                 execution_count=execution_count,
                 source=source
             ))
         nb = v4.new_notebook(cells=cells)
         with io.open(outfname, "w", encoding="utf-8") as f:
             write(nb, f, version=4)
 
 @magics_class
 class AsyncMagics(BasicMagics):
 
     @line_magic
     def autoawait(self, parameter_s):
         """
         Allow to change the status of the autoawait option.
 
         This allow you to set a specific asynchronous code runner.
 
         If no value is passed, print the currently used asynchronous integration
         and whether it is activated.
 
         It can take a number of value evaluated in the following order:
 
         - False/false/off deactivate autoawait integration
         - True/true/on activate autoawait integration using configured default
           loop
         - asyncio/curio/trio activate autoawait integration and use integration
           with said library.
 
         - `sync` turn on the pseudo-sync integration (mostly used for
           `IPython.embed()` which does not run IPython with a real eventloop and
           deactivate running asynchronous code. Turning on Asynchronous code with
           the pseudo sync loop is undefined behavior and may lead IPython to crash.
 
         If the passed parameter does not match any of the above and is a python
         identifier, get said object from user namespace and set it as the
         runner, and activate autoawait.
 
         If the object is a fully qualified object name, attempt to import it and
         set it as the runner, and activate autoawait.
 
         The exact behavior of autoawait is experimental and subject to change
         across version of IPython and Python.
         """
 
         param = parameter_s.strip()
         d = {True: "on", False: "off"}
 
         if not param:
             print("IPython autoawait is `{}`, and set to use `{}`".format(
                 d[self.shell.autoawait],
                 self.shell.loop_runner
             ))
             return None
 
         if param.lower() in ('false', 'off'):
             self.shell.autoawait = False
             return None
         if param.lower() in ('true', 'on'):
             self.shell.autoawait = True
             return None
 
         if param in self.shell.loop_runner_map:
             self.shell.loop_runner, self.shell.autoawait = self.shell.loop_runner_map[param]
             return None
 
         if param in self.shell.user_ns :
             self.shell.loop_runner = self.shell.user_ns[param]
             self.shell.autoawait = True
             return None
 
         runner = import_item(param)
 
         self.shell.loop_runner = runner
         self.shell.autoawait = True

IPython/core/tests/test_logger.py

@@ -1,27 +1,27
 # -*- coding: utf-8 -*-
 """Test IPython.core.logger"""
 
 import os.path
 
 import pytest
 from tempfile import TemporaryDirectory
 
 
 def test_logstart_inaccessible_file():
     with pytest.raises(IOError):
         _ip.logger.logstart(logfname="/")   # Opening that filename will fail.
 
     try:
         _ip.run_cell("a=1")                 # Check it doesn't try to log this
     finally:
         _ip.logger.log_active = False  # If this fails, don't let later tests fail
 
 def test_logstart_unicode():
     with TemporaryDirectory() as tdir:
         logfname = os.path.join(tdir, "test_unicode.log")
         _ip.run_cell("'abc€'")
         try:
-            _ip.magic("logstart -to %s" % logfname)
+            _ip.run_line_magic("logstart", "-to %s" % logfname)
             _ip.run_cell("'abc€'")
         finally:
             _ip.logger.logstop()

IPython/core/tests/test_magic.py

@@ -1,1556 +1,1556
 # -*- coding: utf-8 -*-
 """Tests for various magic functions."""
 
 import gc
 import io
 import os
 import re
 import shlex
 import sys
 import warnings
 from importlib import invalidate_caches
 from io import StringIO
 from pathlib import Path
 from textwrap import dedent
 from unittest import TestCase, mock
 
 import pytest
 
 from IPython import get_ipython
 from IPython.core import magic
 from IPython.core.error import UsageError
 from IPython.core.magic import (
     Magics,
     cell_magic,
     line_magic,
     magics_class,
     register_cell_magic,
     register_line_magic,
 )
 from IPython.core.magics import code, execution, logging, osm, script
 from IPython.testing import decorators as dec
 from IPython.testing import tools as tt
 from IPython.utils.io import capture_output
 from IPython.utils.process import find_cmd
 from IPython.utils.tempdir import TemporaryDirectory, TemporaryWorkingDirectory
 from IPython.utils.syspathcontext import prepended_to_syspath
 
 from .test_debugger import PdbTestInput
 
 from tempfile import NamedTemporaryFile
 
 @magic.magics_class
 class DummyMagics(magic.Magics): pass
 
 def test_extract_code_ranges():
     instr = "1 3 5-6 7-9 10:15 17: :10 10- -13 :"
     expected = [
         (0, 1),
         (2, 3),
         (4, 6),
         (6, 9),
         (9, 14),
         (16, None),
         (None, 9),
         (9, None),
         (None, 13),
         (None, None),
     ]
     actual = list(code.extract_code_ranges(instr))
     assert actual == expected
 
 def test_extract_symbols():
     source = """import foo\na = 10\ndef b():\n    return 42\n\n\nclass A: pass\n\n\n"""
     symbols_args = ["a", "b", "A", "A,b", "A,a", "z"]
     expected = [([], ['a']),
                 (["def b():\n    return 42\n"], []),
                 (["class A: pass\n"], []),
                 (["class A: pass\n", "def b():\n    return 42\n"], []),
                 (["class A: pass\n"], ['a']),
                 ([], ['z'])]
     for symbols, exp in zip(symbols_args, expected):
         assert code.extract_symbols(source, symbols) == exp
 
 
 def test_extract_symbols_raises_exception_with_non_python_code():
     source = ("=begin A Ruby program :)=end\n"
               "def hello\n"
               "puts 'Hello world'\n"
               "end")
     with pytest.raises(SyntaxError):
         code.extract_symbols(source, "hello")
 
 
 def test_magic_not_found():
     # magic not found raises UsageError
     with pytest.raises(UsageError):
         _ip.run_line_magic("doesntexist", "")
 
     # ensure result isn't success when a magic isn't found
     result = _ip.run_cell('%doesntexist')
     assert isinstance(result.error_in_exec, UsageError)
 
 
 def test_cell_magic_not_found():
     # magic not found raises UsageError
     with pytest.raises(UsageError):
         _ip.run_cell_magic('doesntexist', 'line', 'cell')
 
     # ensure result isn't success when a magic isn't found
     result = _ip.run_cell('%%doesntexist')
     assert isinstance(result.error_in_exec, UsageError)
 
 
 def test_magic_error_status():
     def fail(shell):
         1/0
     _ip.register_magic_function(fail)
     result = _ip.run_cell('%fail')
     assert isinstance(result.error_in_exec, ZeroDivisionError)
 
 
 def test_config():
     """ test that config magic does not raise
     can happen if Configurable init is moved too early into
     Magics.__init__ as then a Config object will be registered as a
     magic.
     """
     ## should not raise.
     _ip.run_line_magic("config", "")
 
 
 def test_config_available_configs():
     """ test that config magic prints available configs in unique and
     sorted order. """
     with capture_output() as captured:
         _ip.run_line_magic("config", "")
 
     stdout = captured.stdout
     config_classes = stdout.strip().split('\n')[1:]
     assert config_classes == sorted(set(config_classes))
 
 def test_config_print_class():
     """ test that config with a classname prints the class's options. """
     with capture_output() as captured:
         _ip.run_line_magic("config", "TerminalInteractiveShell")
 
     stdout = captured.stdout
     assert re.match(
         "TerminalInteractiveShell.* options", stdout.splitlines()[0]
     ), f"{stdout}\n\n1st line of stdout not like 'TerminalInteractiveShell.* options'"
 
 
 def test_rehashx():
     # clear up everything
     _ip.alias_manager.clear_aliases()
     del _ip.db['syscmdlist']
 
     _ip.run_line_magic("rehashx", "")
     # Practically ALL ipython development systems will have more than 10 aliases
 
     assert len(_ip.alias_manager.aliases) > 10
     for name, cmd in _ip.alias_manager.aliases:
         # we must strip dots from alias names
         assert "." not in name
 
     # rehashx must fill up syscmdlist
     scoms = _ip.db['syscmdlist']
     assert len(scoms) > 10
 
 
 def test_magic_parse_options():
     """Test that we don't mangle paths when parsing magic options."""
     ip = get_ipython()
     path = 'c:\\x'
     m = DummyMagics(ip)
     opts = m.parse_options('-f %s' % path,'f:')[0]
     # argv splitting is os-dependent
     if os.name == 'posix':
         expected = 'c:x'
     else:
         expected = path
     assert opts["f"] == expected
 
 
 def test_magic_parse_long_options():
     """Magic.parse_options can handle --foo=bar long options"""
     ip = get_ipython()
     m = DummyMagics(ip)
     opts, _ = m.parse_options("--foo --bar=bubble", "a", "foo", "bar=")
     assert "foo" in opts
     assert "bar" in opts
     assert opts["bar"] == "bubble"
 
 
 def doctest_hist_f():
     """Test %hist -f with temporary filename.
 
     In [9]: import tempfile
 
     In [10]: tfile = tempfile.mktemp('.py','tmp-ipython-')
 
     In [11]: %hist -nl -f $tfile 3
 
     In [13]: import os; os.unlink(tfile)
     """
 
 
 def doctest_hist_op():
     """Test %hist -op
 
     In [1]: class b(float):
        ...:     pass
        ...:
 
     In [2]: class s(object):
        ...:     def __str__(self):
        ...:         return 's'
        ...:
 
     In [3]:
 
     In [4]: class r(b):
        ...:     def __repr__(self):
        ...:         return 'r'
        ...:
 
     In [5]: class sr(s,r): pass
        ...:
 
     In [6]:
 
     In [7]: bb=b()
 
     In [8]: ss=s()
 
     In [9]: rr=r()
 
     In [10]: ssrr=sr()
 
     In [11]: 4.5
     Out[11]: 4.5
 
     In [12]: str(ss)
     Out[12]: 's'
 
     In [13]:
 
     In [14]: %hist -op
     >>> class b:
     ...     pass
     ...
     >>> class s(b):
     ...     def __str__(self):
     ...         return 's'
     ...
     >>>
     >>> class r(b):
     ...     def __repr__(self):
     ...         return 'r'
     ...
     >>> class sr(s,r): pass
     >>>
     >>> bb=b()
     >>> ss=s()
     >>> rr=r()
     >>> ssrr=sr()
     >>> 4.5
     4.5
     >>> str(ss)
     's'
     >>>
     """
 
 def test_hist_pof():
     ip = get_ipython()
     ip.run_cell("1+2", store_history=True)
     #raise Exception(ip.history_manager.session_number)
     #raise Exception(list(ip.history_manager._get_range_session()))
     with TemporaryDirectory() as td:
         tf = os.path.join(td, 'hist.py')
         ip.run_line_magic('history', '-pof %s' % tf)
         assert os.path.isfile(tf)
 
 
 def test_macro():
     ip = get_ipython()
     ip.history_manager.reset()   # Clear any existing history.
     cmds = ["a=1", "def b():\n  return a**2", "print(a,b())"]
     for i, cmd in enumerate(cmds, start=1):
         ip.history_manager.store_inputs(i, cmd)
     ip.run_line_magic("macro", "test 1-3")
     assert ip.user_ns["test"].value == "\n".join(cmds) + "\n"
 
     # List macros
     assert "test" in ip.run_line_magic("macro", "")
 
 
 def test_macro_run():
     """Test that we can run a multi-line macro successfully."""
     ip = get_ipython()
     ip.history_manager.reset()
     cmds = ["a=10", "a+=1", "print(a)", "%macro test 2-3"]
     for cmd in cmds:
         ip.run_cell(cmd, store_history=True)
     assert ip.user_ns["test"].value == "a+=1\nprint(a)\n"
     with tt.AssertPrints("12"):
         ip.run_cell("test")
     with tt.AssertPrints("13"):
         ip.run_cell("test")
 
 
 def test_magic_magic():
     """Test %magic"""
     ip = get_ipython()
     with capture_output() as captured:
         ip.run_line_magic("magic", "")
 
     stdout = captured.stdout
     assert "%magic" in stdout
     assert "IPython" in stdout
     assert "Available" in stdout
 
 
 @dec.skipif_not_numpy
 def test_numpy_reset_array_undec():
     "Test '%reset array' functionality"
     _ip.ex("import numpy as np")
     _ip.ex("a = np.empty(2)")
     assert "a" in _ip.user_ns
     _ip.run_line_magic("reset", "-f array")
     assert "a" not in _ip.user_ns
 
 
 def test_reset_out():
     "Test '%reset out' magic"
     _ip.run_cell("parrot = 'dead'", store_history=True)
     # test '%reset -f out', make an Out prompt
     _ip.run_cell("parrot", store_history=True)
     assert "dead" in [_ip.user_ns[x] for x in ("_", "__", "___")]
     _ip.run_line_magic("reset", "-f out")
     assert "dead" not in [_ip.user_ns[x] for x in ("_", "__", "___")]
     assert len(_ip.user_ns["Out"]) == 0
 
 
 def test_reset_in():
     "Test '%reset in' magic"
     # test '%reset -f in'
     _ip.run_cell("parrot", store_history=True)
     assert "parrot" in [_ip.user_ns[x] for x in ("_i", "_ii", "_iii")]
     _ip.run_line_magic("reset", "-f in")
     assert "parrot" not in [_ip.user_ns[x] for x in ("_i", "_ii", "_iii")]
     assert len(set(_ip.user_ns["In"])) == 1
 
 
 def test_reset_dhist():
     "Test '%reset dhist' magic"
     _ip.run_cell("tmp = [d for d in _dh]")  # copy before clearing
     _ip.run_line_magic("cd", os.path.dirname(pytest.__file__))
     _ip.run_line_magic("cd", "-")
     assert len(_ip.user_ns["_dh"]) > 0
     _ip.run_line_magic("reset", "-f dhist")
     assert len(_ip.user_ns["_dh"]) == 0
     _ip.run_cell("_dh = [d for d in tmp]")  # restore
 
 
 def test_reset_in_length():
     "Test that '%reset in' preserves In[] length"
     _ip.run_cell("print 'foo'")
     _ip.run_cell("reset -f in")
     assert len(_ip.user_ns["In"]) == _ip.displayhook.prompt_count + 1
 
 
 class TestResetErrors(TestCase):
 
     def test_reset_redefine(self):
 
         @magics_class
         class KernelMagics(Magics):
               @line_magic
               def less(self, shell): pass
 
         _ip.register_magics(KernelMagics)
 
         with self.assertLogs() as cm:
             # hack, we want to just capture logs, but assertLogs fails if not
             # logs get produce.
             # so log one things we ignore.
             import logging as log_mod
             log = log_mod.getLogger()
             log.info('Nothing')
             # end hack.
             _ip.run_cell("reset -f")
 
         assert len(cm.output) == 1
         for out in cm.output:
             assert "Invalid alias" not in out
 
 def test_tb_syntaxerror():
     """test %tb after a SyntaxError"""
     ip = get_ipython()
     ip.run_cell("for")
 
     # trap and validate stdout
     save_stdout = sys.stdout
     try:
         sys.stdout = StringIO()
         ip.run_cell("%tb")
         out = sys.stdout.getvalue()
     finally:
         sys.stdout = save_stdout
     # trim output, and only check the last line
     last_line = out.rstrip().splitlines()[-1].strip()
     assert last_line == "SyntaxError: invalid syntax"
 
 
 def test_time():
     ip = get_ipython()
 
     with tt.AssertPrints("Wall time: "):
         ip.run_cell("%time None")
 
     ip.run_cell("def f(kmjy):\n"
                 "    %time print (2*kmjy)")
 
     with tt.AssertPrints("Wall time: "):
         with tt.AssertPrints("hihi", suppress=False):
             ip.run_cell("f('hi')")
 
 
 # ';' at the end of %time prevents instruction value to be printed.
 # This tests fix for #13837.
 def test_time_no_output_with_semicolon():
     ip = get_ipython()
 
     # Test %time cases
     with tt.AssertPrints(" 123456"):
         with tt.AssertPrints("Wall time: ", suppress=False):
             with tt.AssertPrints("CPU times: ", suppress=False):
                 ip.run_cell("%time 123000+456")
 
     with tt.AssertNotPrints(" 123456"):
         with tt.AssertPrints("Wall time: ", suppress=False):
             with tt.AssertPrints("CPU times: ", suppress=False):
                 ip.run_cell("%time 123000+456;")
 
     with tt.AssertPrints(" 123456"):
         with tt.AssertPrints("Wall time: ", suppress=False):
             with tt.AssertPrints("CPU times: ", suppress=False):
                 ip.run_cell("%time 123000+456 # Comment")
 
     with tt.AssertNotPrints(" 123456"):
         with tt.AssertPrints("Wall time: ", suppress=False):
             with tt.AssertPrints("CPU times: ", suppress=False):
                 ip.run_cell("%time 123000+456; # Comment")
 
     with tt.AssertPrints(" 123456"):
         with tt.AssertPrints("Wall time: ", suppress=False):
             with tt.AssertPrints("CPU times: ", suppress=False):
                 ip.run_cell("%time 123000+456 # ;Comment")
 
     # Test %%time cases
     with tt.AssertPrints("123456"):
         with tt.AssertPrints("Wall time: ", suppress=False):
             with tt.AssertPrints("CPU times: ", suppress=False):
                 ip.run_cell("%%time\n123000+456\n\n\n")
 
     with tt.AssertNotPrints("123456"):
         with tt.AssertPrints("Wall time: ", suppress=False):
             with tt.AssertPrints("CPU times: ", suppress=False):
                 ip.run_cell("%%time\n123000+456;\n\n\n")
 
     with tt.AssertPrints("123456"):
         with tt.AssertPrints("Wall time: ", suppress=False):
             with tt.AssertPrints("CPU times: ", suppress=False):
                 ip.run_cell("%%time\n123000+456  # Comment\n\n\n")
 
     with tt.AssertNotPrints("123456"):
         with tt.AssertPrints("Wall time: ", suppress=False):
             with tt.AssertPrints("CPU times: ", suppress=False):
                 ip.run_cell("%%time\n123000+456;  # Comment\n\n\n")
 
     with tt.AssertPrints("123456"):
         with tt.AssertPrints("Wall time: ", suppress=False):
             with tt.AssertPrints("CPU times: ", suppress=False):
                 ip.run_cell("%%time\n123000+456  # ;Comment\n\n\n")
 
 
 def test_time_last_not_expression():
     ip.run_cell("%%time\n"
                 "var_1 = 1\n"
                 "var_2 = 2\n")
     assert ip.user_ns['var_1'] == 1
     del ip.user_ns['var_1']
     assert ip.user_ns['var_2'] == 2
     del ip.user_ns['var_2']
 
 
 @dec.skip_win32
 def test_time2():
     ip = get_ipython()
 
     with tt.AssertPrints("CPU times: user "):
         ip.run_cell("%time None")
 
 def test_time3():
     """Erroneous magic function calls, issue gh-3334"""
     ip = get_ipython()
     ip.user_ns.pop('run', None)
 
     with tt.AssertNotPrints("not found", channel='stderr'):
         ip.run_cell("%%time\n"
                     "run = 0\n"
                     "run += 1")
 
 def test_multiline_time():
     """Make sure last statement from time return a value."""
     ip = get_ipython()
     ip.user_ns.pop('run', None)
 
     ip.run_cell(
         dedent(
             """\
         %%time
         a = "ho"
         b = "hey"
         a+b
         """
         )
     )
     assert ip.user_ns_hidden["_"] == "hohey"
 
 
 def test_time_local_ns():
     """
     Test that local_ns is actually global_ns when running a cell magic
     """
     ip = get_ipython()
     ip.run_cell("%%time\n" "myvar = 1")
     assert ip.user_ns["myvar"] == 1
     del ip.user_ns["myvar"]
 
 
 def test_time_microseconds_display():
     """Ensure ASCII is used when necessary"""
     with mock.patch("sys.stdout", io.TextIOWrapper(StringIO(), encoding="utf-8")):
         assert execution._format_time(0.000001) == "1 \u03bcs"
     with mock.patch("sys.stdout", io.TextIOWrapper(StringIO(), encoding="ascii")):
         assert execution._format_time(0.000001) == "1 us"
 
 
 # Test %%capture magic. Added to test issue #13926
 def test_capture():
     ip = get_ipython()
 
     # Test %%capture nominal case
     ip.run_cell("%%capture abc\n1+2")
     with tt.AssertPrints("True", suppress=False):
         ip.run_cell("'abc' in locals()")
     with tt.AssertPrints("True", suppress=False):
         ip.run_cell("'outputs' in dir(abc)")
     with tt.AssertPrints("3", suppress=False):
         ip.run_cell("abc.outputs[0]")
 
     # Test %%capture with ';' at end of expression
     ip.run_cell("%%capture abc\n7+8;")
     with tt.AssertPrints("False", suppress=False):
         ip.run_cell("'abc' in locals()")
 
 
 def test_doctest_mode():
     "Toggle doctest_mode twice, it should be a no-op and run without error"
     _ip.run_line_magic("doctest_mode", "")
     _ip.run_line_magic("doctest_mode", "")
 
 
 def test_parse_options():
     """Tests for basic options parsing in magics."""
     # These are only the most minimal of tests, more should be added later.  At
     # the very least we check that basic text/unicode calls work OK.
     m = DummyMagics(_ip)
     assert m.parse_options("foo", "")[1] == "foo"
     assert m.parse_options("foo", "")[1] == "foo"
 
 
 def test_parse_options_preserve_non_option_string():
     """Test to assert preservation of non-option part of magic-block, while parsing magic options."""
     m = DummyMagics(_ip)
     opts, stmt = m.parse_options(
         " -n1  -r 13 _ = 314 + foo", "n:r:", preserve_non_opts=True
     )
     assert opts == {"n": "1", "r": "13"}
     assert stmt == "_ = 314 + foo"
 
 
 def test_run_magic_preserve_code_block():
     """Test to assert preservation of non-option part of magic-block, while running magic."""
     _ip.user_ns["spaces"] = []
     _ip.run_line_magic(
         "timeit", "-n1 -r1 spaces.append([s.count(' ') for s in ['document']])"
     )
     assert _ip.user_ns["spaces"] == [[0]]
 
 
 def test_dirops():
     """Test various directory handling operations."""
     # curpath = lambda :os.path.splitdrive(os.getcwd())[1].replace('\\','/')
     curpath = os.getcwd
     startdir = os.getcwd()
     ipdir = os.path.realpath(_ip.ipython_dir)
     try:
         _ip.run_line_magic("cd", '"%s"' % ipdir)
         assert curpath() == ipdir
         _ip.run_line_magic("cd", "-")
         assert curpath() == startdir
         _ip.run_line_magic("pushd", '"%s"' % ipdir)
         assert curpath() == ipdir
         _ip.run_line_magic("popd", "")
         assert curpath() == startdir
     finally:
         os.chdir(startdir)
 
 
 def test_cd_force_quiet():
     """Test OSMagics.cd_force_quiet option"""
     _ip.config.OSMagics.cd_force_quiet = True
     osmagics = osm.OSMagics(shell=_ip)
 
     startdir = os.getcwd()
     ipdir = os.path.realpath(_ip.ipython_dir)
 
     try:
         with tt.AssertNotPrints(ipdir):
             osmagics.cd('"%s"' % ipdir)
         with tt.AssertNotPrints(startdir):
             osmagics.cd('-')
     finally:
         os.chdir(startdir)
 
 
 def test_xmode():
     # Calling xmode three times should be a no-op
     xmode = _ip.InteractiveTB.mode
     for i in range(4):
         _ip.run_line_magic("xmode", "")
     assert _ip.InteractiveTB.mode == xmode
 
 def test_reset_hard():
     monitor = []
     class A(object):
         def __del__(self):
             monitor.append(1)
         def __repr__(self):
             return "<A instance>"
 
     _ip.user_ns["a"] = A()
     _ip.run_cell("a")
 
     assert monitor == []
     _ip.run_line_magic("reset", "-f")
     assert monitor == [1]
 
 class TestXdel(tt.TempFileMixin):
     def test_xdel(self):
         """Test that references from %run are cleared by xdel."""
         src = ("class A(object):\n"
                "    monitor = []\n"
                "    def __del__(self):\n"
                "        self.monitor.append(1)\n"
                "a = A()\n")
         self.mktmp(src)
         # %run creates some hidden references...
         _ip.run_line_magic("run", "%s" % self.fname)
         # ... as does the displayhook.
         _ip.run_cell("a")
 
         monitor = _ip.user_ns["A"].monitor
         assert monitor == []
 
         _ip.run_line_magic("xdel", "a")
 
         # Check that a's __del__ method has been called.
         gc.collect(0)
         assert monitor == [1]
 
 def doctest_who():
     """doctest for %who
 
     In [1]: %reset -sf
 
     In [2]: alpha = 123
 
     In [3]: beta = 'beta'
 
     In [4]: %who int
     alpha
 
     In [5]: %who str
     beta
 
     In [6]: %whos
     Variable   Type    Data/Info
     ----------------------------
     alpha      int     123
     beta       str     beta
 
     In [7]: %who_ls
     Out[7]: ['alpha', 'beta']
     """
 
 def test_whos():
     """Check that whos is protected against objects where repr() fails."""
     class A(object):
         def __repr__(self):
             raise Exception()
     _ip.user_ns['a'] = A()
     _ip.run_line_magic("whos", "")
 
 def doctest_precision():
     """doctest for %precision
 
     In [1]: f = get_ipython().display_formatter.formatters['text/plain']
 
     In [2]: %precision 5
     Out[2]: '%.5f'
 
     In [3]: f.float_format
     Out[3]: '%.5f'
 
     In [4]: %precision %e
     Out[4]: '%e'
 
     In [5]: f(3.1415927)
     Out[5]: '3.141593e+00'
     """
 
 
 def test_debug_magic():
     """Test debugging a small code with %debug
 
     In [1]: with PdbTestInput(['c']):
        ...:     %debug print("a b") #doctest: +ELLIPSIS
        ...:
     ...
     ipdb> c
     a b
     In [2]:
     """
 
 
 def test_debug_magic_locals():
     """Test debugging a small code with %debug with locals
 
     In [1]: with PdbTestInput(['c']):
        ...:     def fun():
        ...:         res = 1
        ...:         %debug print(res)
        ...:     fun()
        ...:
     ...
     ipdb> c
     1
     In [2]:
     """
 
 def test_psearch():
     with tt.AssertPrints("dict.fromkeys"):
         _ip.run_cell("dict.fr*?")
     with tt.AssertPrints("π.is_integer"):
         _ip.run_cell("π = 3.14;\nπ.is_integ*?")
 
 def test_timeit_shlex():
     """test shlex issues with timeit (#1109)"""
     _ip.ex("def f(*a,**kw): pass")
     _ip.run_line_magic("timeit", '-n1 "this is a bug".count(" ")')
     _ip.run_line_magic("timeit", '-r1 -n1 f(" ", 1)')
     _ip.run_line_magic("timeit", '-r1 -n1 f(" ", 1, " ", 2, " ")')
     _ip.run_line_magic("timeit", '-r1 -n1 ("a " + "b")')
     _ip.run_line_magic("timeit", '-r1 -n1 f("a " + "b")')
     _ip.run_line_magic("timeit", '-r1 -n1 f("a " + "b ")')
 
 
 def test_timeit_special_syntax():
     "Test %%timeit with IPython special syntax"
     @register_line_magic
     def lmagic(line):
         ip = get_ipython()
         ip.user_ns['lmagic_out'] = line
 
     # line mode test
     _ip.run_line_magic("timeit", "-n1 -r1 %lmagic my line")
     assert _ip.user_ns["lmagic_out"] == "my line"
     # cell mode test
     _ip.run_cell_magic("timeit", "-n1 -r1", "%lmagic my line2")
     assert _ip.user_ns["lmagic_out"] == "my line2"
 
 
 def test_timeit_return():
     """
     test whether timeit -o return object
     """
 
     res = _ip.run_line_magic('timeit','-n10 -r10 -o 1')
     assert(res is not None)
 
 def test_timeit_quiet():
     """
     test quiet option of timeit magic
     """
     with tt.AssertNotPrints("loops"):
         _ip.run_cell("%timeit -n1 -r1 -q 1")
 
 def test_timeit_return_quiet():
     with tt.AssertNotPrints("loops"):
         res = _ip.run_line_magic('timeit', '-n1 -r1 -q -o 1')
     assert (res is not None)
 
 def test_timeit_invalid_return():
     with pytest.raises(SyntaxError):
         _ip.run_line_magic('timeit', 'return')
 
 @dec.skipif(execution.profile is None)
 def test_prun_special_syntax():
     "Test %%prun with IPython special syntax"
     @register_line_magic
     def lmagic(line):
         ip = get_ipython()
         ip.user_ns['lmagic_out'] = line
 
     # line mode test
     _ip.run_line_magic("prun", "-q %lmagic my line")
     assert _ip.user_ns["lmagic_out"] == "my line"
     # cell mode test
     _ip.run_cell_magic("prun", "-q", "%lmagic my line2")
     assert _ip.user_ns["lmagic_out"] == "my line2"
 
 
 @dec.skipif(execution.profile is None)
 def test_prun_quotes():
     "Test that prun does not clobber string escapes (GH #1302)"
-    _ip.magic(r"prun -q x = '\t'")
+    _ip.run_line_magic("prun", r"-q x = '\t'")
     assert _ip.user_ns["x"] == "\t"
 
 
 def test_extension():
     # Debugging information for failures of this test
     print('sys.path:')
     for p in sys.path:
         print(' ', p)
     print('CWD', os.getcwd())
 
-    pytest.raises(ImportError, _ip.magic, "load_ext daft_extension")
+    pytest.raises(ImportError, _ip.run_line_magic, "load_ext", "daft_extension")
     daft_path = os.path.join(os.path.dirname(__file__), "daft_extension")
     sys.path.insert(0, daft_path)
     try:
         _ip.user_ns.pop('arq', None)
         invalidate_caches()   # Clear import caches
         _ip.run_line_magic("load_ext", "daft_extension")
         assert _ip.user_ns["arq"] == 185
         _ip.run_line_magic("unload_ext", "daft_extension")
         assert 'arq' not in _ip.user_ns
     finally:
         sys.path.remove(daft_path)
 
 
 def test_notebook_export_json():
     pytest.importorskip("nbformat")
     _ip = get_ipython()
     _ip.history_manager.reset()   # Clear any existing history.
     cmds = ["a=1", "def b():\n  return a**2", "print('noël, été', b())"]
     for i, cmd in enumerate(cmds, start=1):
         _ip.history_manager.store_inputs(i, cmd)
     with TemporaryDirectory() as td:
         outfile = os.path.join(td, "nb.ipynb")
         _ip.run_line_magic("notebook", "%s" % outfile)
 
 
 class TestEnv(TestCase):
 
     def test_env(self):
         env = _ip.run_line_magic("env", "")
         self.assertTrue(isinstance(env, dict))
 
     def test_env_secret(self):
         env = _ip.run_line_magic("env", "")
         hidden = "<hidden>"
         with mock.patch.dict(
             os.environ,
             {
                 "API_KEY": "abc123",
                 "SECRET_THING": "ssshhh",
                 "JUPYTER_TOKEN": "",
                 "VAR": "abc"
             }
         ):
             env = _ip.run_line_magic("env", "")
         assert env["API_KEY"] == hidden
         assert env["SECRET_THING"] == hidden
         assert env["JUPYTER_TOKEN"] == hidden
         assert env["VAR"] == "abc"
 
     def test_env_get_set_simple(self):
         env = _ip.run_line_magic("env", "var val1")
         self.assertEqual(env, None)
         self.assertEqual(os.environ["var"], "val1")
         self.assertEqual(_ip.run_line_magic("env", "var"), "val1")
         env = _ip.run_line_magic("env", "var=val2")
         self.assertEqual(env, None)
         self.assertEqual(os.environ['var'], 'val2')
 
     def test_env_get_set_complex(self):
         env = _ip.run_line_magic("env", "var 'val1 '' 'val2")
         self.assertEqual(env, None)
         self.assertEqual(os.environ['var'], "'val1 '' 'val2")
         self.assertEqual(_ip.run_line_magic("env", "var"), "'val1 '' 'val2")
         env = _ip.run_line_magic("env", 'var=val2 val3="val4')
         self.assertEqual(env, None)
         self.assertEqual(os.environ['var'], 'val2 val3="val4')
 
     def test_env_set_bad_input(self):
         self.assertRaises(UsageError, lambda: _ip.run_line_magic("set_env", "var"))
 
     def test_env_set_whitespace(self):
         self.assertRaises(UsageError, lambda: _ip.run_line_magic("env", "var A=B"))
 
 
 class CellMagicTestCase(TestCase):
 
     def check_ident(self, magic):
         # Manually called, we get the result
         out = _ip.run_cell_magic(magic, "a", "b")
         assert out == ("a", "b")
         # Via run_cell, it goes into the user's namespace via displayhook
         _ip.run_cell("%%" + magic + " c\nd\n")
         assert _ip.user_ns["_"] == ("c", "d\n")
 
     def test_cell_magic_func_deco(self):
         "Cell magic using simple decorator"
         @register_cell_magic
         def cellm(line, cell):
             return line, cell
 
         self.check_ident('cellm')
 
     def test_cell_magic_reg(self):
         "Cell magic manually registered"
         def cellm(line, cell):
             return line, cell
 
         _ip.register_magic_function(cellm, 'cell', 'cellm2')
         self.check_ident('cellm2')
 
     def test_cell_magic_class(self):
         "Cell magics declared via a class"
         @magics_class
         class MyMagics(Magics):
 
             @cell_magic
             def cellm3(self, line, cell):
                 return line, cell
 
         _ip.register_magics(MyMagics)
         self.check_ident('cellm3')
 
     def test_cell_magic_class2(self):
         "Cell magics declared via a class, #2"
         @magics_class
         class MyMagics2(Magics):
 
             @cell_magic('cellm4')
             def cellm33(self, line, cell):
                 return line, cell
 
         _ip.register_magics(MyMagics2)
         self.check_ident('cellm4')
         # Check that nothing is registered as 'cellm33'
         c33 = _ip.find_cell_magic('cellm33')
         assert c33 == None
 
 def test_file():
     """Basic %%writefile"""
     ip = get_ipython()
     with TemporaryDirectory() as td:
         fname = os.path.join(td, "file1")
         ip.run_cell_magic(
             "writefile",
             fname,
             "\n".join(
                 [
                     "line1",
                     "line2",
                 ]
             ),
         )
         s = Path(fname).read_text(encoding="utf-8")
         assert "line1\n" in s
         assert "line2" in s
 
 
 @dec.skip_win32
 def test_file_single_quote():
     """Basic %%writefile with embedded single quotes"""
     ip = get_ipython()
     with TemporaryDirectory() as td:
         fname = os.path.join(td, "'file1'")
         ip.run_cell_magic(
             "writefile",
             fname,
             "\n".join(
                 [
                     "line1",
                     "line2",
                 ]
             ),
         )
         s = Path(fname).read_text(encoding="utf-8")
         assert "line1\n" in s
         assert "line2" in s
 
 
 @dec.skip_win32
 def test_file_double_quote():
     """Basic %%writefile with embedded double quotes"""
     ip = get_ipython()
     with TemporaryDirectory() as td:
         fname = os.path.join(td, '"file1"')
         ip.run_cell_magic(
             "writefile",
             fname,
             "\n".join(
                 [
                     "line1",
                     "line2",
                 ]
             ),
         )
         s = Path(fname).read_text(encoding="utf-8")
         assert "line1\n" in s
         assert "line2" in s
 
 
 def test_file_var_expand():
     """%%writefile $filename"""
     ip = get_ipython()
     with TemporaryDirectory() as td:
         fname = os.path.join(td, "file1")
         ip.user_ns["filename"] = fname
         ip.run_cell_magic(
             "writefile",
             "$filename",
             "\n".join(
                 [
                     "line1",
                     "line2",
                 ]
             ),
         )
         s = Path(fname).read_text(encoding="utf-8")
         assert "line1\n" in s
         assert "line2" in s
 
 
 def test_file_unicode():
     """%%writefile with unicode cell"""
     ip = get_ipython()
     with TemporaryDirectory() as td:
         fname = os.path.join(td, 'file1')
         ip.run_cell_magic("writefile", fname, u'\n'.join([
             u'liné1',
             u'liné2',
         ]))
         with io.open(fname, encoding='utf-8') as f:
             s = f.read()
         assert "liné1\n" in s
         assert "liné2" in s
 
 
 def test_file_amend():
     """%%writefile -a amends files"""
     ip = get_ipython()
     with TemporaryDirectory() as td:
         fname = os.path.join(td, "file2")
         ip.run_cell_magic(
             "writefile",
             fname,
             "\n".join(
                 [
                     "line1",
                     "line2",
                 ]
             ),
         )
         ip.run_cell_magic(
             "writefile",
             "-a %s" % fname,
             "\n".join(
                 [
                     "line3",
                     "line4",
                 ]
             ),
         )
         s = Path(fname).read_text(encoding="utf-8")
         assert "line1\n" in s
         assert "line3\n" in s
 
 
 def test_file_spaces():
     """%%file with spaces in filename"""
     ip = get_ipython()
     with TemporaryWorkingDirectory() as td:
         fname = "file name"
         ip.run_cell_magic(
             "file",
             '"%s"' % fname,
             "\n".join(
                 [
                     "line1",
                     "line2",
                 ]
             ),
         )
         s = Path(fname).read_text(encoding="utf-8")
         assert "line1\n" in s
         assert "line2" in s
 
 
 def test_script_config():
     ip = get_ipython()
     ip.config.ScriptMagics.script_magics = ['whoda']
     sm = script.ScriptMagics(shell=ip)
     assert "whoda" in sm.magics["cell"]
 
 
 def test_script_out():
     ip = get_ipython()
     ip.run_cell_magic("script", f"--out output {sys.executable}", "print('hi')")
     assert ip.user_ns["output"].strip() == "hi"
 
 
 def test_script_err():
     ip = get_ipython()
     ip.run_cell_magic(
         "script",
         f"--err error {sys.executable}",
         "import sys; print('hello', file=sys.stderr)",
     )
     assert ip.user_ns["error"].strip() == "hello"
 
 
 def test_script_out_err():
     ip = get_ipython()
     ip.run_cell_magic(
         "script",
         f"--out output --err error {sys.executable}",
         "\n".join(
             [
                 "import sys",
                 "print('hi')",
                 "print('hello', file=sys.stderr)",
             ]
         ),
     )
     assert ip.user_ns["output"].strip() == "hi"
     assert ip.user_ns["error"].strip() == "hello"
 
 
 async def test_script_bg_out():
     ip = get_ipython()
     ip.run_cell_magic("script", f"--bg --out output {sys.executable}", "print('hi')")
     assert (await ip.user_ns["output"].read()).strip() == b"hi"
     assert ip.user_ns["output"].at_eof()
 
 
 async def test_script_bg_err():
     ip = get_ipython()
     ip.run_cell_magic(
         "script",
         f"--bg --err error {sys.executable}",
         "import sys; print('hello', file=sys.stderr)",
     )
     assert (await ip.user_ns["error"].read()).strip() == b"hello"
     assert ip.user_ns["error"].at_eof()
 
 
 async def test_script_bg_out_err():
     ip = get_ipython()
     ip.run_cell_magic(
         "script",
         f"--bg --out output --err error {sys.executable}",
         "\n".join(
             [
                 "import sys",
                 "print('hi')",
                 "print('hello', file=sys.stderr)",
             ]
         ),
     )
     assert (await ip.user_ns["output"].read()).strip() == b"hi"
     assert (await ip.user_ns["error"].read()).strip() == b"hello"
     assert ip.user_ns["output"].at_eof()
     assert ip.user_ns["error"].at_eof()
 
 
 async def test_script_bg_proc():
     ip = get_ipython()
     ip.run_cell_magic(
         "script",
         f"--bg --out output --proc p {sys.executable}",
         "\n".join(
             [
                 "import sys",
                 "print('hi')",
                 "print('hello', file=sys.stderr)",
             ]
         ),
     )
     p = ip.user_ns["p"]
     await p.wait()
     assert p.returncode == 0
     assert (await p.stdout.read()).strip() == b"hi"
     # not captured, so empty
     assert (await p.stderr.read()) == b""
     assert p.stdout.at_eof()
     assert p.stderr.at_eof()
 
 
 def test_script_defaults():
     ip = get_ipython()
     for cmd in ['sh', 'bash', 'perl', 'ruby']:
         try:
             find_cmd(cmd)
         except Exception:
             pass
         else:
             assert cmd in ip.magics_manager.magics["cell"]
 
 
 @magics_class
 class FooFoo(Magics):
     """class with both %foo and %%foo magics"""
     @line_magic('foo')
     def line_foo(self, line):
         "I am line foo"
         pass
 
     @cell_magic("foo")
     def cell_foo(self, line, cell):
         "I am cell foo, not line foo"
         pass
 
 def test_line_cell_info():
     """%%foo and %foo magics are distinguishable to inspect"""
     ip = get_ipython()
     ip.magics_manager.register(FooFoo)
     oinfo = ip.object_inspect("foo")
     assert oinfo["found"] is True
     assert oinfo["ismagic"] is True
 
     oinfo = ip.object_inspect("%%foo")
     assert oinfo["found"] is True
     assert oinfo["ismagic"] is True
     assert oinfo["docstring"] == FooFoo.cell_foo.__doc__
 
     oinfo = ip.object_inspect("%foo")
     assert oinfo["found"] is True
     assert oinfo["ismagic"] is True
     assert oinfo["docstring"] == FooFoo.line_foo.__doc__
 
 
 def test_multiple_magics():
     ip = get_ipython()
     foo1 = FooFoo(ip)
     foo2 = FooFoo(ip)
     mm = ip.magics_manager
     mm.register(foo1)
     assert mm.magics["line"]["foo"].__self__ is foo1
     mm.register(foo2)
     assert mm.magics["line"]["foo"].__self__ is foo2
 
 
 def test_alias_magic():
     """Test %alias_magic."""
     ip = get_ipython()
     mm = ip.magics_manager
 
     # Basic operation: both cell and line magics are created, if possible.
     ip.run_line_magic("alias_magic", "timeit_alias timeit")
     assert "timeit_alias" in mm.magics["line"]
     assert "timeit_alias" in mm.magics["cell"]
 
     # --cell is specified, line magic not created.
     ip.run_line_magic("alias_magic", "--cell timeit_cell_alias timeit")
     assert "timeit_cell_alias" not in mm.magics["line"]
     assert "timeit_cell_alias" in mm.magics["cell"]
 
     # Test that line alias is created successfully.
     ip.run_line_magic("alias_magic", "--line env_alias env")
     assert ip.run_line_magic("env", "") == ip.run_line_magic("env_alias", "")
 
     # Test that line alias with parameters passed in is created successfully.
     ip.run_line_magic(
         "alias_magic", "--line history_alias history --params " + shlex.quote("3")
     )
     assert "history_alias" in mm.magics["line"]
 
 
 def test_save():
     """Test %save."""
     ip = get_ipython()
     ip.history_manager.reset()   # Clear any existing history.
     cmds = ["a=1", "def b():\n  return a**2", "print(a, b())"]
     for i, cmd in enumerate(cmds, start=1):
         ip.history_manager.store_inputs(i, cmd)
     with TemporaryDirectory() as tmpdir:
         file = os.path.join(tmpdir, "testsave.py")
         ip.run_line_magic("save", "%s 1-10" % file)
         content = Path(file).read_text(encoding="utf-8")
         assert content.count(cmds[0]) == 1
         assert "coding: utf-8" in content
         ip.run_line_magic("save", "-a %s 1-10" % file)
         content = Path(file).read_text(encoding="utf-8")
         assert content.count(cmds[0]) == 2
         assert "coding: utf-8" in content
 
 
 def test_save_with_no_args():
     ip = get_ipython()
     ip.history_manager.reset()  # Clear any existing history.
     cmds = ["a=1", "def b():\n    return a**2", "print(a, b())", "%save"]
     for i, cmd in enumerate(cmds, start=1):
         ip.history_manager.store_inputs(i, cmd)
 
     with TemporaryDirectory() as tmpdir:
         path = os.path.join(tmpdir, "testsave.py")
         ip.run_line_magic("save", path)
         content = Path(path).read_text(encoding="utf-8")
         expected_content = dedent(
             """\
             # coding: utf-8
             a=1
             def b():
                 return a**2
             print(a, b())
             """
         )
         assert content == expected_content
 
 
 def test_store():
     """Test %store."""
     ip = get_ipython()
     ip.run_line_magic('load_ext', 'storemagic')
 
     # make sure the storage is empty
     ip.run_line_magic("store", "-z")
     ip.user_ns["var"] = 42
     ip.run_line_magic("store", "var")
     ip.user_ns["var"] = 39
     ip.run_line_magic("store", "-r")
     assert ip.user_ns["var"] == 42
 
     ip.run_line_magic("store", "-d var")
     ip.user_ns["var"] = 39
     ip.run_line_magic("store", "-r")
     assert ip.user_ns["var"] == 39
 
 
 def _run_edit_test(arg_s, exp_filename=None,
                         exp_lineno=-1,
                         exp_contents=None,
                         exp_is_temp=None):
     ip = get_ipython()
     M = code.CodeMagics(ip)
     last_call = ['','']
     opts,args = M.parse_options(arg_s,'prxn:')
     filename, lineno, is_temp = M._find_edit_target(ip, args, opts, last_call)
 
     if exp_filename is not None:
         assert exp_filename == filename
     if exp_contents is not None:
         with io.open(filename, 'r', encoding='utf-8') as f:
             contents = f.read()
         assert exp_contents == contents
     if exp_lineno != -1:
         assert exp_lineno == lineno
     if exp_is_temp is not None:
         assert exp_is_temp == is_temp
 
 
 def test_edit_interactive():
     """%edit on interactively defined objects"""
     ip = get_ipython()
     n = ip.execution_count
     ip.run_cell("def foo(): return 1", store_history=True)
 
     with pytest.raises(code.InteractivelyDefined) as e:
         _run_edit_test("foo")
     assert e.value.index == n
 
 
 def test_edit_cell():
     """%edit [cell id]"""
     ip = get_ipython()
 
     ip.run_cell("def foo(): return 1", store_history=True)
 
     # test
     _run_edit_test("1", exp_contents=ip.user_ns['In'][1], exp_is_temp=True)
 
 def test_edit_fname():
     """%edit file"""
     # test
     _run_edit_test("test file.py", exp_filename="test file.py")
 
 def test_bookmark():
     ip = get_ipython()
     ip.run_line_magic('bookmark', 'bmname')
     with tt.AssertPrints('bmname'):
         ip.run_line_magic('bookmark', '-l')
     ip.run_line_magic('bookmark', '-d bmname')
 
 def test_ls_magic():
     ip = get_ipython()
     json_formatter = ip.display_formatter.formatters['application/json']
     json_formatter.enabled = True
     lsmagic = ip.run_line_magic("lsmagic", "")
     with warnings.catch_warnings(record=True) as w:
         j = json_formatter(lsmagic)
     assert sorted(j) == ["cell", "line"]
     assert w == []  # no warnings
 
 
 def test_strip_initial_indent():
     def sii(s):
         lines = s.splitlines()
         return '\n'.join(code.strip_initial_indent(lines))
 
     assert sii("  a = 1\nb = 2") == "a = 1\nb = 2"
     assert sii("  a\n    b\nc") == "a\n  b\nc"
     assert sii("a\n  b") == "a\n  b"
 
 def test_logging_magic_quiet_from_arg():
     _ip.config.LoggingMagics.quiet = False
     lm = logging.LoggingMagics(shell=_ip)
     with TemporaryDirectory() as td:
         try:
             with tt.AssertNotPrints(re.compile("Activating.*")):
                 lm.logstart('-q {}'.format(
                         os.path.join(td, "quiet_from_arg.log")))
         finally:
             _ip.logger.logstop()
 
 def test_logging_magic_quiet_from_config():
     _ip.config.LoggingMagics.quiet = True
     lm = logging.LoggingMagics(shell=_ip)
     with TemporaryDirectory() as td:
         try:
             with tt.AssertNotPrints(re.compile("Activating.*")):
                 lm.logstart(os.path.join(td, "quiet_from_config.log"))
         finally:
             _ip.logger.logstop()
 
 
 def test_logging_magic_not_quiet():
     _ip.config.LoggingMagics.quiet = False
     lm = logging.LoggingMagics(shell=_ip)
     with TemporaryDirectory() as td:
         try:
             with tt.AssertPrints(re.compile("Activating.*")):
                 lm.logstart(os.path.join(td, "not_quiet.log"))
         finally:
             _ip.logger.logstop()
 
 
 def test_time_no_var_expand():
     _ip.user_ns["a"] = 5
     _ip.user_ns["b"] = []
     _ip.run_line_magic("time", 'b.append("{a}")')
     assert _ip.user_ns["b"] == ["{a}"]
 
 
 # this is slow, put at the end for local testing.
 def test_timeit_arguments():
     "Test valid timeit arguments, should not cause SyntaxError (GH #1269)"
     _ip.run_line_magic("timeit", "-n1 -r1 a=('#')")
 
 
 MINIMAL_LAZY_MAGIC = """
 from IPython.core.magic import (
     Magics,
     magics_class,
     line_magic,
     cell_magic,
 )
 
 
 @magics_class
 class LazyMagics(Magics):
     @line_magic
     def lazy_line(self, line):
         print("Lazy Line")
 
     @cell_magic
     def lazy_cell(self, line, cell):
         print("Lazy Cell")
 
 
 def load_ipython_extension(ipython):
     ipython.register_magics(LazyMagics)
 """
 
 
 def test_lazy_magics():
     with pytest.raises(UsageError):
         ip.run_line_magic("lazy_line", "")
 
     startdir = os.getcwd()
 
     with TemporaryDirectory() as tmpdir:
         with prepended_to_syspath(tmpdir):
             ptempdir = Path(tmpdir)
             tf = ptempdir / "lazy_magic_module.py"
             tf.write_text(MINIMAL_LAZY_MAGIC)
             ip.magics_manager.register_lazy("lazy_line", Path(tf.name).name[:-3])
             with tt.AssertPrints("Lazy Line"):
                 ip.run_line_magic("lazy_line", "")
 
 
 TEST_MODULE = """
 print('Loaded my_tmp')
 if __name__ == "__main__":
     print('I just ran a script')
 """
 
 def test_run_module_from_import_hook():
     "Test that a module can be loaded via an import hook"
     with TemporaryDirectory() as tmpdir:
         fullpath = os.path.join(tmpdir, "my_tmp.py")
         Path(fullpath).write_text(TEST_MODULE, encoding="utf-8")
 
         import importlib.abc
         import importlib.util
 
         class MyTempImporter(importlib.abc.MetaPathFinder, importlib.abc.SourceLoader):
             def find_spec(self, fullname, path, target=None):
                 if fullname == "my_tmp":
                     return importlib.util.spec_from_loader(fullname, self)
 
             def get_filename(self, fullname):
                 assert fullname == "my_tmp"
                 return fullpath
 
             def get_data(self, path):
                 assert Path(path).samefile(fullpath)
                 return Path(fullpath).read_text(encoding="utf-8")
 
         sys.meta_path.insert(0, MyTempImporter())
 
         with capture_output() as captured:
             _ip.run_line_magic("run", "-m my_tmp")
             _ip.run_cell("import my_tmp")
 
         output = "Loaded my_tmp\nI just ran a script\nLoaded my_tmp\n"
         assert output == captured.stdout
 
         sys.meta_path.pop(0)

IPython/core/tests/test_run.py

@@ -1,626 +1,626
 # encoding: utf-8
 """Tests for code execution (%run and related), which is particularly tricky.
 
 Because of how %run manages namespaces, and the fact that we are trying here to
 verify subtle object deletion and reference counting issues, the %run tests
 will be kept in this separate file.  This makes it easier to aggregate in one
 place the tricks needed to handle it; most other magics are much easier to test
 and we do so in a common test_magic file.
 
 Note that any test using `run -i` should make sure to do a `reset` afterwards,
 as otherwise it may influence later tests.
 """
 
 # Copyright (c) IPython Development Team.
 # Distributed under the terms of the Modified BSD License.
 
 
 
 import functools
 import os
 import platform
 import random
 import string
 import sys
 import textwrap
 import unittest
 from os.path import join as pjoin
 from unittest.mock import patch
 
 import pytest
 from tempfile import TemporaryDirectory
 
 from IPython.core import debugger
 from IPython.testing import decorators as dec
 from IPython.testing import tools as tt
 from IPython.utils.io import capture_output
 
 
 def doctest_refbug():
     """Very nasty problem with references held by multiple runs of a script.
     See: https://github.com/ipython/ipython/issues/141
 
     In [1]: _ip.clear_main_mod_cache()
     # random
 
     In [2]: %run refbug
 
     In [3]: call_f()
     lowercased: hello
 
     In [4]: %run refbug
 
     In [5]: call_f()
     lowercased: hello
     lowercased: hello
     """
 
 
 def doctest_run_builtins():
     r"""Check that %run doesn't damage __builtins__.
 
     In [1]: import tempfile
 
     In [2]: bid1 = id(__builtins__)
 
     In [3]: fname = tempfile.mkstemp('.py')[1]
 
     In [3]: f = open(fname, 'w', encoding='utf-8')
 
     In [4]: dummy= f.write('pass\n')
 
     In [5]: f.flush()
 
     In [6]: t1 = type(__builtins__)
 
     In [7]: %run $fname
 
     In [7]: f.close()
 
     In [8]: bid2 = id(__builtins__)
 
     In [9]: t2 = type(__builtins__)
 
     In [10]: t1 == t2
     Out[10]: True
 
     In [10]: bid1 == bid2
     Out[10]: True
 
     In [12]: try:
        ....:     os.unlink(fname)
        ....: except:
        ....:     pass
        ....:
     """
 
 
 def doctest_run_option_parser():
     r"""Test option parser in %run.
 
     In [1]: %run print_argv.py
     []
 
     In [2]: %run print_argv.py print*.py
     ['print_argv.py']
 
     In [3]: %run -G print_argv.py print*.py
     ['print*.py']
 
     """
 
 
 @dec.skip_win32
 def doctest_run_option_parser_for_posix():
     r"""Test option parser in %run (Linux/OSX specific).
 
     You need double quote to escape glob in POSIX systems:
 
     In [1]: %run print_argv.py print\\*.py
     ['print*.py']
 
     You can't use quote to escape glob in POSIX systems:
 
     In [2]: %run print_argv.py 'print*.py'
     ['print_argv.py']
 
     """
 
 
 doctest_run_option_parser_for_posix.__skip_doctest__ = sys.platform == "win32"
 
 
 @dec.skip_if_not_win32
 def doctest_run_option_parser_for_windows():
     r"""Test option parser in %run (Windows specific).
 
     In Windows, you can't escape ``*` `by backslash:
 
     In [1]: %run print_argv.py print\\*.py
     ['print\\\\*.py']
 
     You can use quote to escape glob:
 
     In [2]: %run print_argv.py 'print*.py'
     ["'print*.py'"]
 
     """
 
 
 doctest_run_option_parser_for_windows.__skip_doctest__ = sys.platform != "win32"
 
 
 def doctest_reset_del():
     """Test that resetting doesn't cause errors in __del__ methods.
 
     In [2]: class A(object):
        ...:     def __del__(self):
        ...:         print(str("Hi"))
        ...:
 
     In [3]: a = A()
 
     In [4]: get_ipython().reset(); import gc; x = gc.collect(0)
     Hi
 
     In [5]: 1+1
     Out[5]: 2
     """
 
 # For some tests, it will be handy to organize them in a class with a common
 # setup that makes a temp file
 
 class TestMagicRunPass(tt.TempFileMixin):
 
     def setUp(self):
         content = "a = [1,2,3]\nb = 1"
         self.mktmp(content)
 
     def run_tmpfile(self):
         _ip = get_ipython()
         # This fails on Windows if self.tmpfile.name has spaces or "~" in it.
         # See below and ticket https://bugs.launchpad.net/bugs/366353
         _ip.run_line_magic("run", self.fname)
 
     def run_tmpfile_p(self):
         _ip = get_ipython()
         # This fails on Windows if self.tmpfile.name has spaces or "~" in it.
         # See below and ticket https://bugs.launchpad.net/bugs/366353
         _ip.run_line_magic("run", "-p %s" % self.fname)
 
     def test_builtins_id(self):
         """Check that %run doesn't damage __builtins__ """
         _ip = get_ipython()
         # Test that the id of __builtins__ is not modified by %run
         bid1 = id(_ip.user_ns['__builtins__'])
         self.run_tmpfile()
         bid2 = id(_ip.user_ns['__builtins__'])
         assert bid1 == bid2
 
     def test_builtins_type(self):
         """Check that the type of __builtins__ doesn't change with %run.
 
         However, the above could pass if __builtins__ was already modified to
         be a dict (it should be a module) by a previous use of %run.  So we
         also check explicitly that it really is a module:
         """
         _ip = get_ipython()
         self.run_tmpfile()
         assert type(_ip.user_ns["__builtins__"]) == type(sys)
 
     def test_run_profile(self):
         """Test that the option -p, which invokes the profiler, do not
         crash by invoking execfile"""
         self.run_tmpfile_p()
 
     def test_run_debug_twice(self):
         # https://github.com/ipython/ipython/issues/10028
         _ip = get_ipython()
         with tt.fake_input(["c"]):
             _ip.run_line_magic("run", "-d %s" % self.fname)
         with tt.fake_input(["c"]):
             _ip.run_line_magic("run", "-d %s" % self.fname)
 
     def test_run_debug_twice_with_breakpoint(self):
         """Make a valid python temp file."""
         _ip = get_ipython()
         with tt.fake_input(["b 2", "c", "c"]):
             _ip.run_line_magic("run", "-d %s" % self.fname)
 
         with tt.fake_input(["c"]):
             with tt.AssertNotPrints("KeyError"):
                 _ip.run_line_magic("run", "-d %s" % self.fname)
 
 
 class TestMagicRunSimple(tt.TempFileMixin):
 
     def test_simpledef(self):
         """Test that simple class definitions work."""
         src = ("class foo: pass\n"
                "def f(): return foo()")
         self.mktmp(src)
         _ip.run_line_magic("run", str(self.fname))
         _ip.run_cell("t = isinstance(f(), foo)")
         assert _ip.user_ns["t"] is True
 
     @pytest.mark.xfail(
         platform.python_implementation() == "PyPy",
         reason="expecting __del__ call on exit is unreliable and doesn't happen on PyPy",
     )
     def test_obj_del(self):
         """Test that object's __del__ methods are called on exit."""
         src = ("class A(object):\n"
                "    def __del__(self):\n"
                "        print('object A deleted')\n"
                "a = A()\n")
         self.mktmp(src)
         err = None
         tt.ipexec_validate(self.fname, 'object A deleted', err)
 
     def test_aggressive_namespace_cleanup(self):
         """Test that namespace cleanup is not too aggressive GH-238
 
         Returning from another run magic deletes the namespace"""
         # see ticket https://github.com/ipython/ipython/issues/238
 
         with tt.TempFileMixin() as empty:
             empty.mktmp("")
             # On Windows, the filename will have \users in it, so we need to use the
             # repr so that the \u becomes \\u.
             src = (
                 "ip = get_ipython()\n"
                 "for i in range(5):\n"
                 "   try:\n"
-                "       ip.magic(%r)\n"
+                "       ip.run_line_magic(%r, %r)\n"
                 "   except NameError as e:\n"
                 "       print(i)\n"
-                "       break\n" % ("run " + empty.fname)
+                "       break\n" % ("run", empty.fname)
             )
             self.mktmp(src)
             _ip.run_line_magic("run", str(self.fname))
             _ip.run_cell("ip == get_ipython()")
             assert _ip.user_ns["i"] == 4
 
     def test_run_second(self):
         """Test that running a second file doesn't clobber the first, gh-3547"""
         self.mktmp("avar = 1\n" "def afunc():\n" "  return avar\n")
 
         with tt.TempFileMixin() as empty:
             empty.mktmp("")
 
             _ip.run_line_magic("run", self.fname)
             _ip.run_line_magic("run", empty.fname)
             assert _ip.user_ns["afunc"]() == 1
 
     def test_tclass(self):
         mydir = os.path.dirname(__file__)
         tc = os.path.join(mydir, "tclass")
         src = f"""\
 import gc
 %run "{tc}" C-first
 gc.collect(0)
 %run "{tc}" C-second
 gc.collect(0)
 %run "{tc}" C-third
 gc.collect(0)
 %reset -f
 """
         self.mktmp(src, ".ipy")
         out = """\
 ARGV 1-: ['C-first']
 ARGV 1-: ['C-second']
 tclass.py: deleting object: C-first
 ARGV 1-: ['C-third']
 tclass.py: deleting object: C-second
 tclass.py: deleting object: C-third
 """
         err = None
         tt.ipexec_validate(self.fname, out, err)
 
     def test_run_i_after_reset(self):
         """Check that %run -i still works after %reset (gh-693)"""
         src = "yy = zz\n"
         self.mktmp(src)
         _ip.run_cell("zz = 23")
         try:
             _ip.run_line_magic("run", "-i %s" % self.fname)
             assert _ip.user_ns["yy"] == 23
         finally:
             _ip.run_line_magic("reset", "-f")
 
         _ip.run_cell("zz = 23")
         try:
             _ip.run_line_magic("run", "-i %s" % self.fname)
             assert _ip.user_ns["yy"] == 23
         finally:
             _ip.run_line_magic("reset", "-f")
 
     def test_unicode(self):
         """Check that files in odd encodings are accepted."""
         mydir = os.path.dirname(__file__)
         na = os.path.join(mydir, "nonascii.py")
-        _ip.magic('run "%s"' % na)
+        _ip.run_line_magic("run", na)
         assert _ip.user_ns["u"] == "Ўт№Ф"
 
     def test_run_py_file_attribute(self):
         """Test handling of `__file__` attribute in `%run <file>.py`."""
         src = "t = __file__\n"
         self.mktmp(src)
         _missing = object()
         file1 = _ip.user_ns.get("__file__", _missing)
         _ip.run_line_magic("run", self.fname)
         file2 = _ip.user_ns.get("__file__", _missing)
 
         # Check that __file__ was equal to the filename in the script's
         # namespace.
         assert _ip.user_ns["t"] == self.fname
 
         # Check that __file__ was not leaked back into user_ns.
         assert file1 == file2
 
     def test_run_ipy_file_attribute(self):
         """Test handling of `__file__` attribute in `%run <file.ipy>`."""
         src = "t = __file__\n"
         self.mktmp(src, ext='.ipy')
         _missing = object()
         file1 = _ip.user_ns.get("__file__", _missing)
         _ip.run_line_magic("run", self.fname)
         file2 = _ip.user_ns.get("__file__", _missing)
 
         # Check that __file__ was equal to the filename in the script's
         # namespace.
         assert _ip.user_ns["t"] == self.fname
 
         # Check that __file__ was not leaked back into user_ns.
         assert file1 == file2
 
     def test_run_formatting(self):
         """ Test that %run -t -N<N> does not raise a TypeError for N > 1."""
         src = "pass"
         self.mktmp(src)
         _ip.run_line_magic("run", "-t -N 1 %s" % self.fname)
         _ip.run_line_magic("run", "-t -N 10 %s" % self.fname)
 
     def test_ignore_sys_exit(self):
         """Test the -e option to ignore sys.exit()"""
         src = "import sys; sys.exit(1)"
         self.mktmp(src)
         with tt.AssertPrints("SystemExit"):
             _ip.run_line_magic("run", self.fname)
 
         with tt.AssertNotPrints("SystemExit"):
             _ip.run_line_magic("run", "-e %s" % self.fname)
 
     def test_run_nb(self):
         """Test %run notebook.ipynb"""
         pytest.importorskip("nbformat")
         from nbformat import v4, writes
         nb = v4.new_notebook(
            cells=[
                 v4.new_markdown_cell("The Ultimate Question of Everything"),
                 v4.new_code_cell("answer=42")
             ]
         )
         src = writes(nb, version=4)
         self.mktmp(src, ext='.ipynb')
 
         _ip.run_line_magic("run", self.fname)
 
         assert _ip.user_ns["answer"] == 42
 
     def test_run_nb_error(self):
         """Test %run notebook.ipynb error"""
         pytest.importorskip("nbformat")
         from nbformat import v4, writes
 
         # %run when a file name isn't provided
         pytest.raises(Exception, _ip.magic, "run")
 
         # %run when a file doesn't exist
         pytest.raises(Exception, _ip.magic, "run foobar.ipynb")
 
         # %run on a notebook with an error
         nb = v4.new_notebook(
            cells=[
                 v4.new_code_cell("0/0")
             ]
         )
         src = writes(nb, version=4)
         self.mktmp(src, ext='.ipynb')
         pytest.raises(Exception, _ip.magic, "run %s" % self.fname)
 
     def test_file_options(self):
         src = ('import sys\n'
                'a = " ".join(sys.argv[1:])\n')
         self.mktmp(src)
         test_opts = "-x 3 --verbose"
         _ip.run_line_magic("run", "{0} {1}".format(self.fname, test_opts))
         assert _ip.user_ns["a"] == test_opts
 
 
 class TestMagicRunWithPackage(unittest.TestCase):
 
     def writefile(self, name, content):
         path = os.path.join(self.tempdir.name, name)
         d = os.path.dirname(path)
         if not os.path.isdir(d):
             os.makedirs(d)
         with open(path, "w", encoding="utf-8") as f:
             f.write(textwrap.dedent(content))
 
     def setUp(self):
         self.package = package = 'tmp{0}'.format(''.join([random.choice(string.ascii_letters) for i in range(10)]))
         """Temporary  (probably) valid python package name."""
 
         self.value = int(random.random() * 10000)
 
         self.tempdir = TemporaryDirectory()
         self.__orig_cwd = os.getcwd()
         sys.path.insert(0, self.tempdir.name)
 
         self.writefile(os.path.join(package, '__init__.py'), '')
         self.writefile(os.path.join(package, 'sub.py'), """
         x = {0!r}
         """.format(self.value))
         self.writefile(os.path.join(package, 'relative.py'), """
         from .sub import x
         """)
         self.writefile(os.path.join(package, 'absolute.py'), """
         from {0}.sub import x
         """.format(package))
         self.writefile(os.path.join(package, 'args.py'), """
         import sys
         a = " ".join(sys.argv[1:])
         """.format(package))
 
     def tearDown(self):
         os.chdir(self.__orig_cwd)
         sys.path[:] = [p for p in sys.path if p != self.tempdir.name]
         self.tempdir.cleanup()
 
     def check_run_submodule(self, submodule, opts=""):
         _ip.user_ns.pop("x", None)
         _ip.run_line_magic(
             "run", "{2} -m {0}.{1}".format(self.package, submodule, opts)
         )
         self.assertEqual(
             _ip.user_ns["x"],
             self.value,
             "Variable `x` is not loaded from module `{0}`.".format(submodule),
         )
 
     def test_run_submodule_with_absolute_import(self):
         self.check_run_submodule('absolute')
 
     def test_run_submodule_with_relative_import(self):
         """Run submodule that has a relative import statement (#2727)."""
         self.check_run_submodule('relative')
 
     def test_prun_submodule_with_absolute_import(self):
         self.check_run_submodule('absolute', '-p')
 
     def test_prun_submodule_with_relative_import(self):
         self.check_run_submodule('relative', '-p')
 
     def with_fake_debugger(func):
         @functools.wraps(func)
         def wrapper(*args, **kwds):
             with patch.object(debugger.Pdb, 'run', staticmethod(eval)):
                 return func(*args, **kwds)
         return wrapper
 
     @with_fake_debugger
     def test_debug_run_submodule_with_absolute_import(self):
         self.check_run_submodule('absolute', '-d')
 
     @with_fake_debugger
     def test_debug_run_submodule_with_relative_import(self):
         self.check_run_submodule('relative', '-d')
 
     def test_module_options(self):
         _ip.user_ns.pop("a", None)
         test_opts = "-x abc -m test"
         _ip.run_line_magic("run", "-m {0}.args {1}".format(self.package, test_opts))
         assert _ip.user_ns["a"] == test_opts
 
     def test_module_options_with_separator(self):
         _ip.user_ns.pop("a", None)
         test_opts = "-x abc -m test"
         _ip.run_line_magic("run", "-m {0}.args -- {1}".format(self.package, test_opts))
         assert _ip.user_ns["a"] == test_opts
 
 
 def test_run__name__():
     with TemporaryDirectory() as td:
         path = pjoin(td, "foo.py")
         with open(path, "w", encoding="utf-8") as f:
             f.write("q = __name__")
 
         _ip.user_ns.pop("q", None)
         _ip.run_line_magic("run", "{}".format(path))
         assert _ip.user_ns.pop("q") == "__main__"
 
         _ip.run_line_magic("run", "-n {}".format(path))
         assert _ip.user_ns.pop("q") == "foo"
 
         try:
             _ip.run_line_magic("run", "-i -n {}".format(path))
             assert _ip.user_ns.pop("q") == "foo"
         finally:
             _ip.run_line_magic("reset", "-f")
 
 
 def test_run_tb():
     """Test traceback offset in %run"""
     with TemporaryDirectory() as td:
         path = pjoin(td, "foo.py")
         with open(path, "w", encoding="utf-8") as f:
             f.write(
                 "\n".join(
                     [
                         "def foo():",
                         "    return bar()",
                         "def bar():",
                         "    raise RuntimeError('hello!')",
                         "foo()",
                     ]
                 )
             )
         with capture_output() as io:
             _ip.run_line_magic("run", "{}".format(path))
         out = io.stdout
         assert "execfile" not in out
         assert "RuntimeError" in out
         assert out.count("---->") == 3
         del ip.user_ns['bar']
         del ip.user_ns['foo']
 
 
 def test_multiprocessing_run():
     """Set we can run mutiprocesgin without messing up up main namespace
 
     Note that import `nose.tools as nt` modify the values
     sys.module['__mp_main__'] so we need to temporarily set it to None to test
     the issue.
     """
     with TemporaryDirectory() as td:
         mpm = sys.modules.get('__mp_main__')
         sys.modules['__mp_main__'] = None
         try:
             path = pjoin(td, "test.py")
             with open(path, "w", encoding="utf-8") as f:
                 f.write("import multiprocessing\nprint('hoy')")
             with capture_output() as io:
                 _ip.run_line_magic('run', path)
                 _ip.run_cell("i_m_undefined")
             out = io.stdout
             assert "hoy" in out
             assert "AttributeError" not in out
             assert "NameError" in out
             assert out.count("---->") == 1
         except:
             raise
         finally:
             sys.modules['__mp_main__'] = mpm
 
 
 def test_script_tb():
     """Test traceback offset in `ipython script.py`"""
     with TemporaryDirectory() as td:
         path = pjoin(td, "foo.py")
         with open(path, "w", encoding="utf-8") as f:
             f.write(
                 "\n".join(
                     [
                         "def foo():",
                         "    return bar()",
                         "def bar():",
                         "    raise RuntimeError('hello!')",
                         "foo()",
                     ]
                 )
             )
         out, err = tt.ipexec(path)
         assert "execfile" not in out
         assert "RuntimeError" in out
         assert out.count("---->") == 3

IPython/core/tests/test_ultratb.py

@@ -1,456 +1,457
 # encoding: utf-8
 """Tests for IPython.core.ultratb
 """
 import io
 import os.path
 import platform
 import re
 import sys
 import traceback
 import unittest
 from textwrap import dedent
 
 from tempfile import TemporaryDirectory
 
 from IPython.core.ultratb import ColorTB, VerboseTB
 from IPython.testing import tools as tt
 from IPython.testing.decorators import onlyif_unicode_paths, skip_without
 from IPython.utils.syspathcontext import prepended_to_syspath
 
 file_1 = """1
 2
 3
 def f():
   1/0
 """
 
 file_2 = """def f():
   1/0
 """
 
 
 def recursionlimit(frames):
     """
     decorator to set the recursion limit temporarily
     """
 
     def inner(test_function):
         def wrapper(*args, **kwargs):
             rl = sys.getrecursionlimit()
             sys.setrecursionlimit(frames)
             try:
                 return test_function(*args, **kwargs)
             finally:
                 sys.setrecursionlimit(rl)
 
         return wrapper
 
     return inner
 
 
 class ChangedPyFileTest(unittest.TestCase):
     def test_changing_py_file(self):
         """Traceback produced if the line where the error occurred is missing?
 
         https://github.com/ipython/ipython/issues/1456
         """
         with TemporaryDirectory() as td:
             fname = os.path.join(td, "foo.py")
             with open(fname, "w", encoding="utf-8") as f:
                 f.write(file_1)
 
             with prepended_to_syspath(td):
                 ip.run_cell("import foo")
 
             with tt.AssertPrints("ZeroDivisionError"):
                 ip.run_cell("foo.f()")
 
             # Make the file shorter, so the line of the error is missing.
             with open(fname, "w", encoding="utf-8") as f:
                 f.write(file_2)
 
             # For some reason, this was failing on the *second* call after
             # changing the file, so we call f() twice.
             with tt.AssertNotPrints("Internal Python error", channel='stderr'):
                 with tt.AssertPrints("ZeroDivisionError"):
                     ip.run_cell("foo.f()")
                 with tt.AssertPrints("ZeroDivisionError"):
                     ip.run_cell("foo.f()")
 
 iso_8859_5_file = u'''# coding: iso-8859-5
 
 def fail():
     """дбИЖ"""
     1/0     # дбИЖ
 '''
 
 class NonAsciiTest(unittest.TestCase):
     @onlyif_unicode_paths
     def test_nonascii_path(self):
         # Non-ascii directory name as well.
         with TemporaryDirectory(suffix=u'é') as td:
             fname = os.path.join(td, u"fooé.py")
             with open(fname, "w", encoding="utf-8") as f:
                 f.write(file_1)
 
             with prepended_to_syspath(td):
                 ip.run_cell("import foo")
 
             with tt.AssertPrints("ZeroDivisionError"):
                 ip.run_cell("foo.f()")
 
     def test_iso8859_5(self):
         with TemporaryDirectory() as td:
             fname = os.path.join(td, 'dfghjkl.py')
 
             with io.open(fname, 'w', encoding='iso-8859-5') as f:
                 f.write(iso_8859_5_file)
 
             with prepended_to_syspath(td):
                 ip.run_cell("from dfghjkl import fail")
 
             with tt.AssertPrints("ZeroDivisionError"):
                 with tt.AssertPrints(u'дбИЖ', suppress=False):
                     ip.run_cell('fail()')
 
     def test_nonascii_msg(self):
         cell = u"raise Exception('é')"
         expected = u"Exception('é')"
         ip.run_cell("%xmode plain")
         with tt.AssertPrints(expected):
             ip.run_cell(cell)
 
         ip.run_cell("%xmode verbose")
         with tt.AssertPrints(expected):
             ip.run_cell(cell)
 
         ip.run_cell("%xmode context")
         with tt.AssertPrints(expected):
             ip.run_cell(cell)
 
         ip.run_cell("%xmode minimal")
         with tt.AssertPrints(u"Exception: é"):
             ip.run_cell(cell)
 
         # Put this back into Context mode for later tests.
         ip.run_cell("%xmode context")
 
 class NestedGenExprTestCase(unittest.TestCase):
     """
     Regression test for the following issues:
     https://github.com/ipython/ipython/issues/8293
     https://github.com/ipython/ipython/issues/8205
     """
     def test_nested_genexpr(self):
         code = dedent(
             """\
             class SpecificException(Exception):
                 pass
 
             def foo(x):
                 raise SpecificException("Success!")
 
             sum(sum(foo(x) for _ in [0]) for x in [0])
             """
         )
         with tt.AssertPrints('SpecificException: Success!', suppress=False):
             ip.run_cell(code)
 
 
 indentationerror_file = """if True:
 zoom()
 """
 
 class IndentationErrorTest(unittest.TestCase):
     def test_indentationerror_shows_line(self):
         # See issue gh-2398
         with tt.AssertPrints("IndentationError"):
             with tt.AssertPrints("zoom()", suppress=False):
                 ip.run_cell(indentationerror_file)
 
         with TemporaryDirectory() as td:
             fname = os.path.join(td, "foo.py")
             with open(fname, "w", encoding="utf-8") as f:
                 f.write(indentationerror_file)
 
             with tt.AssertPrints("IndentationError"):
                 with tt.AssertPrints("zoom()", suppress=False):
-                    ip.magic('run %s' % fname)
+                    ip.run_line_magic("run", fname)
+
 
 @skip_without("pandas")
 def test_dynamic_code():
     code = """
     import pandas
     df = pandas.DataFrame([])
 
     # Important: only fails inside of an "exec" call:
     exec("df.foobarbaz()")
     """
 
     with tt.AssertPrints("Could not get source"):
         ip.run_cell(code)
 
 
 se_file_1 = """1
 2
 7/
 """
 
 se_file_2 = """7/
 """
 
 class SyntaxErrorTest(unittest.TestCase):
 
     def test_syntaxerror_no_stacktrace_at_compile_time(self):
         syntax_error_at_compile_time = """
 def foo():
     ..
 """
         with tt.AssertPrints("SyntaxError"):
             ip.run_cell(syntax_error_at_compile_time)
 
         with tt.AssertNotPrints("foo()"):
             ip.run_cell(syntax_error_at_compile_time)
 
     def test_syntaxerror_stacktrace_when_running_compiled_code(self):
         syntax_error_at_runtime = """
 def foo():
     eval("..")
 
 def bar():
     foo()
 
 bar()
 """
         with tt.AssertPrints("SyntaxError"):
             ip.run_cell(syntax_error_at_runtime)
         # Assert syntax error during runtime generate stacktrace
         with tt.AssertPrints(["foo()", "bar()"]):
             ip.run_cell(syntax_error_at_runtime)
         del ip.user_ns['bar']
         del ip.user_ns['foo']
 
     def test_changing_py_file(self):
         with TemporaryDirectory() as td:
             fname = os.path.join(td, "foo.py")
             with open(fname, "w", encoding="utf-8") as f:
                 f.write(se_file_1)
 
             with tt.AssertPrints(["7/", "SyntaxError"]):
-                ip.magic("run " + fname)
+                ip.run_line_magic("run", fname)
 
             # Modify the file
             with open(fname, "w", encoding="utf-8") as f:
                 f.write(se_file_2)
 
             # The SyntaxError should point to the correct line
             with tt.AssertPrints(["7/", "SyntaxError"]):
-                ip.magic("run " + fname)
+                ip.run_line_magic("run", fname)
 
     def test_non_syntaxerror(self):
         # SyntaxTB may be called with an error other than a SyntaxError
         # See e.g. gh-4361
         try:
             raise ValueError('QWERTY')
         except ValueError:
             with tt.AssertPrints('QWERTY'):
                 ip.showsyntaxerror()
 
 import sys
 
 if platform.python_implementation() != "PyPy":
     """
     New 3.9 Pgen Parser does not raise Memory error, except on failed malloc.
     """
     class MemoryErrorTest(unittest.TestCase):
         def test_memoryerror(self):
             memoryerror_code = "(" * 200 + ")" * 200
             ip.run_cell(memoryerror_code)
 
 
 class Python3ChainedExceptionsTest(unittest.TestCase):
     DIRECT_CAUSE_ERROR_CODE = """
 try:
     x = 1 + 2
     print(not_defined_here)
 except Exception as e:
     x += 55
     x - 1
     y = {}
     raise KeyError('uh') from e
     """
 
     EXCEPTION_DURING_HANDLING_CODE = """
 try:
     x = 1 + 2
     print(not_defined_here)
 except Exception as e:
     x += 55
     x - 1
     y = {}
     raise KeyError('uh')
     """
 
     SUPPRESS_CHAINING_CODE = """
 try:
     1/0
 except Exception:
     raise ValueError("Yikes") from None
     """
 
     SYS_EXIT_WITH_CONTEXT_CODE = """
 try:
     1/0
 except Exception as e:
     raise SystemExit(1)
     """
 
     def test_direct_cause_error(self):
         with tt.AssertPrints(["KeyError", "NameError", "direct cause"]):
             ip.run_cell(self.DIRECT_CAUSE_ERROR_CODE)
 
     def test_exception_during_handling_error(self):
         with tt.AssertPrints(["KeyError", "NameError", "During handling"]):
             ip.run_cell(self.EXCEPTION_DURING_HANDLING_CODE)
 
     def test_sysexit_while_handling_error(self):
         with tt.AssertPrints(["SystemExit", "to see the full traceback"]):
             with tt.AssertNotPrints(["another exception"], suppress=False):
                 ip.run_cell(self.SYS_EXIT_WITH_CONTEXT_CODE)
 
     def test_suppress_exception_chaining(self):
         with tt.AssertNotPrints("ZeroDivisionError"), \
              tt.AssertPrints("ValueError", suppress=False):
             ip.run_cell(self.SUPPRESS_CHAINING_CODE)
 
     def test_plain_direct_cause_error(self):
         with tt.AssertPrints(["KeyError", "NameError", "direct cause"]):
             ip.run_cell("%xmode Plain")
             ip.run_cell(self.DIRECT_CAUSE_ERROR_CODE)
             ip.run_cell("%xmode Verbose")
 
     def test_plain_exception_during_handling_error(self):
         with tt.AssertPrints(["KeyError", "NameError", "During handling"]):
             ip.run_cell("%xmode Plain")
             ip.run_cell(self.EXCEPTION_DURING_HANDLING_CODE)
             ip.run_cell("%xmode Verbose")
 
     def test_plain_suppress_exception_chaining(self):
         with tt.AssertNotPrints("ZeroDivisionError"), \
              tt.AssertPrints("ValueError", suppress=False):
             ip.run_cell("%xmode Plain")
             ip.run_cell(self.SUPPRESS_CHAINING_CODE)
             ip.run_cell("%xmode Verbose")
 
 
 class RecursionTest(unittest.TestCase):
     DEFINITIONS = """
 def non_recurs():
     1/0
 
 def r1():
     r1()
 
 def r3a():
     r3b()
 
 def r3b():
     r3c()
 
 def r3c():
     r3a()
 
 def r3o1():
     r3a()
 
 def r3o2():
     r3o1()
 """
     def setUp(self):
         ip.run_cell(self.DEFINITIONS)
 
     def test_no_recursion(self):
         with tt.AssertNotPrints("skipping similar frames"):
             ip.run_cell("non_recurs()")
 
     @recursionlimit(200)
     def test_recursion_one_frame(self):
         with tt.AssertPrints(re.compile(
             r"\[\.\.\. skipping similar frames: r1 at line 5 \(\d{2,3} times\)\]")
         ):
             ip.run_cell("r1()")
 
     @recursionlimit(160)
     def test_recursion_three_frames(self):
         with tt.AssertPrints("[... skipping similar frames: "), \
                 tt.AssertPrints(re.compile(r"r3a at line 8 \(\d{2} times\)"), suppress=False), \
                 tt.AssertPrints(re.compile(r"r3b at line 11 \(\d{2} times\)"), suppress=False), \
                 tt.AssertPrints(re.compile(r"r3c at line 14 \(\d{2} times\)"), suppress=False):
             ip.run_cell("r3o2()")
 
 
 class PEP678NotesReportingTest(unittest.TestCase):
     ERROR_WITH_NOTE = """
 try:
     raise AssertionError("Message")
 except Exception as e:
     try:
         e.add_note("This is a PEP-678 note.")
     except AttributeError:  # Python <= 3.10
         e.__notes__ = ("This is a PEP-678 note.",)
     raise
     """
 
     def test_verbose_reports_notes(self):
         with tt.AssertPrints(["AssertionError", "Message", "This is a PEP-678 note."]):
             ip.run_cell(self.ERROR_WITH_NOTE)
 
     def test_plain_reports_notes(self):
         with tt.AssertPrints(["AssertionError", "Message", "This is a PEP-678 note."]):
             ip.run_cell("%xmode Plain")
             ip.run_cell(self.ERROR_WITH_NOTE)
             ip.run_cell("%xmode Verbose")
 
 
 #----------------------------------------------------------------------------
 
 # module testing (minimal)
 def test_handlers():
     def spam(c, d_e):
         (d, e) = d_e
         x = c + d
         y = c * d
         foo(x, y)
 
     def foo(a, b, bar=1):
         eggs(a, b + bar)
 
     def eggs(f, g, z=globals()):
         h = f + g
         i = f - g
         return h / i
 
     buff = io.StringIO()
 
     buff.write('')
     buff.write('*** Before ***')
     try:
         buff.write(spam(1, (2, 3)))
     except:
         traceback.print_exc(file=buff)
 
     handler = ColorTB(ostream=buff)
     buff.write('*** ColorTB ***')
     try:
         buff.write(spam(1, (2, 3)))
     except:
         handler(*sys.exc_info())
     buff.write('')
 
     handler = VerboseTB(ostream=buff)
     buff.write('*** VerboseTB ***')
     try:
         buff.write(spam(1, (2, 3)))
     except:
         handler(*sys.exc_info())
     buff.write('')