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gh-132971: update shutil.which doc #133067

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gh-132971: update shutil.which doc #133067

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1bfe703
update shutil.which doc
985025074 Apr 28, 2025
32c1c0b
change the location of the note.
985025074 Apr 28, 2025
df20e17
use envvar for PATH
985025074 Apr 28, 2025
fba4c4b
Merge branch 'main' into fix-issue-132971
985025074 Apr 30, 2025
c812c94
change path to the next line
985025074 Apr 30, 2025
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6 changes: 6 additions & 0 deletions Doc/library/shutil.rst
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Expand Up @@ -454,6 +454,12 @@ Directory and files operations
:envvar:`PATH` environment variable is read from :data:`os.environ`,
falling back to :data:`os.defpath` if it is not set.

.. note::

If *cmd* contains a directory component, :func:`!which` only checks the
specified path directly and does not search the directories listed in
*path* or in the system's :envvar:`PATH` environment variable.

On Windows, the current directory is prepended to the *path* if *mode* does
not include ``os.X_OK``. When the *mode* does include ``os.X_OK``, the
Windows API ``NeedCurrentDirectoryForExePathW`` will be consulted to
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