[issue44270] shutil.which: does not find path/cmd.ext where ext is not given

[Michael Hirsch, Ph.D.]

New submission from Michael Hirsch, Ph.D. :

The early short-circuit logic in shutil.which() when cmd includes a directory 
component incorrectly gives None on Windows if the correct filename suffix was 
not also given.

Example: on Windows if ./foo.exe exists, then shutil.which('./foo.exe') returns 
None.

--
components: Library (Lib)
messages: 394784
nosy: michael2
priority: normal
severity: normal
status: open
title: shutil.which: does not find path/cmd.ext where ext is not given
type: behavior
versions: Python 3.10, Python 3.11, Python 3.6, Python 3.7, Python 3.8, Python 
3.9

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[issue44270] shutil.which: does not find path/cmd.ext where ext is not given

[Michael Hirsch, Ph.D.]

Change by Michael Hirsch, Ph.D. :


--
keywords: +patch
pull_requests: +25053
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/26458

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[issue44270] shutil.which: does not find path/cmd.ext where ext is not given

[Michael Hirsch, Ph.D.]

Michael Hirsch, Ph.D.  added the comment:

Correction:

Example: on Windows if ./foo.exe exists, then shutil.which('./foo') returns 
None.

--

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