upstream/ipython Files · IPython/testing/nose_assert_methods.py

Backport PR : Fix for incorrect default encoding on Windows....

Backport PR : Fix for incorrect default encoding on Windows. Whilst trying out rendering notebooks in a flask app under Apache on Windows I got the below error when simply trying to import `SlidesExporter` ```python mod_wsgi (pid=6260): Exception occurred processing WSGI script 'flask_test.wsgi'. Traceback (most recent call last): File "flask_test.py", line 81, in render_notebook from IPython.nbconvert.exporters import SlidesExporter File "c:\\dev\\code\\ipython\\IPython\\__init__.py", line 47, in <module> from .terminal.embed import embed File "c:\\dev\\code\\ipython\\IPython\\terminal\\embed.py", line 32, in <module> from IPython.terminal.interactiveshell import TerminalInteractiveShell File "c:\\dev\\code\\ipython\\IPython\\terminal\\interactiveshell.py", line 25, in <module> from IPython.core.interactiveshell import InteractiveShell, InteractiveShellABC File "c:\\dev\\code\\ipython\\IPython\\core\\interactiveshell.py", line 59, in <module> from IPython.core.prompts import PromptManager File "c:\\dev\\code\\ipython\\IPython\\core\\prompts.py", line 138, in <module> HOME = py3compat.str_to_unicode(os.environ.get("HOME","//////:::::ZZZZZ,,,~~~")) File "c:\\dev\\code\\ipython\\IPython\\utils\\py3compat.py", line 18, in decode return s.decode(encoding, "replace") LookupError: unknown encoding: cp0 ``` A little bit of [googling](http://bugs.python.org/issue6501) suggests that Windows returns 'cp0' to indicate there is no code page. This fix simply looks for this invalid value and replaces it with something valid. With this change it works for me.

Bradley M. Froehle - - Load All Authors

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      """Add some assert methods to nose.tools. These were added in Python 2.7/3.1, so

      once we stop testing on Python 2.6, this file can be removed.

      """

      import nose.tools as nt

      def assert_in(item, collection):

          assert item in collection, '%r not in %r' % (item, collection)

      if not hasattr(nt, 'assert_in'):

          nt.assert_in = assert_in

      def assert_not_in(item, collection):

          assert item not in collection, '%r in %r' % (item, collection)

      if not hasattr(nt, 'assert_not_in'):

          nt.assert_not_in = assert_not_in

      def assert_is_none(obj):

          assert obj is None, '%r is not None' % obj

      if not hasattr(nt, 'assert_is_none'):

          nt.assert_is_none = assert_is_none

      def assert_is_not_none(obj):

          assert obj is not None, '%r is None' % obj

      if not hasattr(nt, 'assert_is_not_none'):

          nt.assert_is_not_none = assert_is_not_none

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				"""Add some assert methods to nose.tools. These were added in Python 2.7/3.1, so
				once we stop testing on Python 2.6, this file can be removed.
				"""

				import nose.tools as nt

				def assert_in(item, collection):
				assert item in collection, '%r not in %r' % (item, collection)

				if not hasattr(nt, 'assert_in'):
				nt.assert_in = assert_in

				def assert_not_in(item, collection):
				assert item not in collection, '%r in %r' % (item, collection)

				if not hasattr(nt, 'assert_not_in'):
				nt.assert_not_in = assert_not_in

				def assert_is_none(obj):
				assert obj is None, '%r is not None' % obj

				if not hasattr(nt, 'assert_is_none'):
				nt.assert_is_none = assert_is_none

				def assert_is_not_none(obj):
				assert obj is not None, '%r is None' % obj

				if not hasattr(nt, 'assert_is_not_none'):
				nt.assert_is_not_none = assert_is_not_none