upstream/ipython Files · IPython/utils/tests/test_importstring.py

Fix extension detection...

Fix extension detection If the path leading up to the Python installation's `site-packages` contains a `.`, this check does not do what it says it does :( For instance, on macOS, the `site-packages` directory is located at `/usr/local/lib/python3.7/site-packages`, which means that trying to use the magic `%run -m my.module` will always fail, because `split_path[1]` will always start with `7/site-packages`. There are better ways to check that a file extension matches expectations, but I thought it was cute that I could fix this bug by inserting a single character :) My current workaround looks like this: ```python import importlib import_path = importlib.util.find_spec('my.module').origin %run $import_path ```

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      """Tests for IPython.utils.importstring."""

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

      #  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 nose.tools as nt

      from IPython.utils.importstring import import_item

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

      # Tests

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

      def test_import_plain():

          "Test simple imports"

          import os

          os2 = import_item('os')

          nt.assert_true(os is os2)

      def test_import_nested():

          "Test nested imports from the stdlib"

          from os import path

          path2 = import_item('os.path')

          nt.assert_true(path is path2)

      def test_import_raises():

          "Test that failing imports raise the right exception"

          nt.assert_raises(ImportError, import_item, 'IPython.foobar')

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				"""Tests for IPython.utils.importstring."""

				#-----------------------------------------------------------------------------
				# 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 nose.tools as nt

				from IPython.utils.importstring import import_item

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

				def test_import_plain():
				"Test simple imports"
				import os
				os2 = import_item('os')
				nt.assert_true(os is os2)


				def test_import_nested():
				"Test nested imports from the stdlib"
				from os import path
				path2 = import_item('os.path')
				nt.assert_true(path is path2)


				def test_import_raises():
				"Test that failing imports raise the right exception"
				nt.assert_raises(ImportError, import_item, 'IPython.foobar')