bpo-38691 Added a switch to ignore PYTHONCASEOK when -E or -I flags passed (#18314)

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Co-Authored-By: Victor Stinner <vstinner@python.org>

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idomic 2020-02-17 04:05:11 -05:00 committed by GitHub
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commit d83b6600b2
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5 changed files with 2658 additions and 2647 deletions

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@ -1829,6 +1829,9 @@ are always available. They are listed here in alphabetical order.
Negative values for *level* are no longer supported (which also changes
the default value to 0).
.. versionchanged:: 3.9
When the command line options :option:`-E` or :option:`-I` are being used,
the environment variable :envvar:`PYTHONCASEOK` is now ignored.
.. rubric:: Footnotes

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@ -589,6 +589,9 @@ Changes in the Python API
since the *buffering* parameter has been removed.
(Contributed by Victor Stinner in :issue:`39357`.)
* The :mod:`importlib` module now ignores the :envvar:`PYTHONCASEOK`
environment variable when the :option:`-E` or :option:`-I` command line
options are being used.
CPython bytecode changes
------------------------

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@ -35,7 +35,7 @@ def _make_relax_case():
def _relax_case():
"""True if filenames must be checked case-insensitively."""
return key in _os.environ
return not sys.flags.ignore_environment and key in _os.environ
else:
def _relax_case():
"""True if filenames must be checked case-insensitively."""

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@ -0,0 +1,2 @@
The :mod:`importlib` module now ignores the :envvar:`PYTHONCASEOK`
environment variable when :option:`-E` or :option:`-I` command line option is used.

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