upstream/ipython Files · IPython/external/tests/test_qt_loaders.py

Python vs IPython: recommend %cd, %env over !cd, !export (#14629)...

Python vs IPython: recommend %cd, %env over !cd, !export (#14629) https://ipython.readthedocs.io/en/latest/interactive/python-ipython-diff.html#shell-assignment The quick overview mentioned `!cd DIR` among examples of shell commands one might use — but that doesn't work as user would hope (can only affect commands in same ! e.g. `!cd /; pwd`). That's not as bad now that `!cd` prints a warning, but IMHO better to provide the right mental model up front. => Replaced that with minimal motivation why `!cd` and `!export` can't work, recommending some %magic alternatives; moved it out of examples to not distract, and right before Magics section.

Nikita Kniazev - - Load All Authors

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      import importlib

      import pytest

      from IPython.external.qt_loaders import ID

      def test_import_denier():

          ID.forbid("ipython_denied_module")

          with pytest.raises(ImportError, match="disabled by IPython"):

              import ipython_denied_module

          with pytest.raises(ImportError, match="disabled by IPython"):

              importlib.import_module("ipython_denied_module")

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				import importlib
				import pytest
				from IPython.external.qt_loaders import ID


				def test_import_denier():
				ID.forbid("ipython_denied_module")
				with pytest.raises(ImportError, match="disabled by IPython"):
				import ipython_denied_module
				with pytest.raises(ImportError, match="disabled by IPython"):
				importlib.import_module("ipython_denied_module")