upstream/ipython Files · IPython/terminal/tests/test_debug_magic.py

Fix example usage of BaseFormatter.for_type_by_name....

Fix example usage of BaseFormatter.for_type_by_name. I propose a small documentation fix for this excellent feature of IPython. The current example doesn't work because the type module and type name are lumped into one string. They must be given as separate strings. See docstring: ``` Signature: BaseFormatter.for_type_by_name(self, type_module, type_name, func=None) ``` For extra clarity, I have added a submodule to this made-up example module so that the pattern is clear.

Matthias Bussonnier - - Load All Authors

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             test_debug_magic.py
        
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      """Test embedding of IPython"""

      #-----------------------------------------------------------------------------

      #  Copyright (C) 2013 The IPython Development Team

      #

      #  Distributed under the terms of the BSD License.  The full license is in

      #  the file COPYING, distributed as part of this software.

      #-----------------------------------------------------------------------------

      #-----------------------------------------------------------------------------

      # Imports

      #-----------------------------------------------------------------------------

      import os

      import sys

      from IPython.testing.decorators import skip_win32

      #-----------------------------------------------------------------------------

      # Tests

      #-----------------------------------------------------------------------------

      @skip_win32

      def test_debug_magic_passes_through_generators():

          """

          This test that we can correctly pass through frames of a generator post-mortem.

          """

          import pexpect

          import re

          in_prompt = re.compile(br'In ?\[\d+\]:')

          ipdb_prompt = 'ipdb>'

          env = os.environ.copy()

          child = pexpect.spawn(sys.executable, ['-m', 'IPython', '--colors=nocolor', '--simple-prompt'],

                                env=env)

          child.timeout = 15

          child.expect(in_prompt)

          child.timeout = 2

          child.sendline("def f(x):")

          child.sendline("    raise Exception")

          child.sendline("")

          child.expect(in_prompt)

          child.sendline("gen = (f(x) for x in [0])")

          child.sendline("")

          child.expect(in_prompt)

          child.sendline("for x in gen:")

          child.sendline("    pass")

          child.sendline("")

          child.expect('Exception:')

          child.expect(in_prompt)

          child.sendline(r'%debug')

          child.expect('----> 2     raise Exception')

          child.expect(ipdb_prompt)

          child.sendline('u')

          child.expect_exact(r'----> 1 gen = (f(x) for x in [0])')

          child.expect(ipdb_prompt)

          child.sendline('u')

          child.expect_exact('----> 1 for x in gen:')

          child.expect(ipdb_prompt)

          child.sendline('u')

          child.expect_exact('*** Oldest frame')

          child.expect(ipdb_prompt)

          child.sendline('exit')

          child.expect(in_prompt)

          child.sendline('exit')

          child.close()

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				"""Test embedding of IPython"""

				#-----------------------------------------------------------------------------
				# Copyright (C) 2013 The IPython Development Team
				#
				# Distributed under the terms of the BSD License. The full license is in
				# the file COPYING, distributed as part of this software.
				#-----------------------------------------------------------------------------

				#-----------------------------------------------------------------------------
				# Imports
				#-----------------------------------------------------------------------------

				import os
				import sys
				from IPython.testing.decorators import skip_win32

				#-----------------------------------------------------------------------------
				# Tests
				#-----------------------------------------------------------------------------

				@skip_win32
				def test_debug_magic_passes_through_generators():
				"""
				This test that we can correctly pass through frames of a generator post-mortem.
				"""
				import pexpect
				import re
				in_prompt = re.compile(br'In ?\[\d+\]:')
				ipdb_prompt = 'ipdb>'
				env = os.environ.copy()
				child = pexpect.spawn(sys.executable, ['-m', 'IPython', '--colors=nocolor', '--simple-prompt'],
				env=env)
				child.timeout = 15

				child.expect(in_prompt)

				child.timeout = 2

				child.sendline("def f(x):")
				child.sendline(" raise Exception")
				child.sendline("")

				child.expect(in_prompt)
				child.sendline("gen = (f(x) for x in [0])")
				child.sendline("")

				child.expect(in_prompt)
				child.sendline("for x in gen:")
				child.sendline(" pass")
				child.sendline("")

				child.expect('Exception:')

				child.expect(in_prompt)
				child.sendline(r'%debug')
				child.expect('----> 2 raise Exception')

				child.expect(ipdb_prompt)
				child.sendline('u')
				child.expect_exact(r'----> 1 gen = (f(x) for x in [0])')

				child.expect(ipdb_prompt)
				child.sendline('u')
				child.expect_exact('----> 1 for x in gen:')

				child.expect(ipdb_prompt)
				child.sendline('u')
				child.expect_exact('*** Oldest frame')

				child.expect(ipdb_prompt)
				child.sendline('exit')

				child.expect(in_prompt)
				child.sendline('exit')

				child.close()