[issue38949] incorrect prefix, exec_prefix in distutils.command.install

[Xavier de Gaye]

New submission from Xavier de Gaye <xdegaye at gmail.com>:

In function finalize_options() of Lib/distutils/command/install.py at

https://github.com/python/cpython/blob/575d0b46d122292ca6e0576a91265d7abf7cbc3d/Lib/distutils/command/install.py#L284

(prefix, exec_prefix) is set using get_config_vars(). This may be incorrect when Python has been manually copied in another location from the location where it has been installed with 'make install'. We should use sys.prefix and sy.exec_prefix instead, those values are calculated by getpath.c instead of being retrieved from the sysconfigdata module.

----------
components: Distutils
messages: 357678
nosy: dstufft, eric.araujo, xdegaye
priority: normal
severity: normal
stage: needs patch
status: open
title: incorrect prefix, exec_prefix in distutils.command.install
type: behavior
versions: Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38949>
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