New submission from Antoine Pitrou <pit...@free.fr>:
`subprocess._args_from_interpreter_flags()` is used to control the flags passed
to child Python processes, for example launched by multiprocessing.
Unfortunately, not all flags are actually recognized by this function:
$ ./python -X dev
Python 3.7.0a2+ (heads/master:895862a, Nov 20 2017, 19:15:23)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys._xoptions
{'dev': True}
>>> import subprocess
>>> subprocess._args_from_interpreter_flags()
['-Wdefault']
----------
components: Library (Lib)
messages: 306574
nosy: barry, davin, pitrou, vstinner
priority: normal
severity: normal
status: open
title: _args_from_interpreter_flags() doesn't keep -X options
type: enhancement
versions: Python 3.7
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue32094>
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