From: Victor Stinner <vstinner@python.org>
Date: Fri, 15 May 2026 21:11:09 +0000 (+0200)
Subject: gh-149879: Don't import msvcrt in _pyio on Cygwin (#149899)
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1441f2f7351f030ba07c6c6b11be513ad1c9104f;p=thirdparty%2FPython%2Fcpython.git

gh-149879: Don't import msvcrt in _pyio on Cygwin (#149899)

The msvcrt extension module cannot be built on Cygwin.
---

diff --git a/Lib/_pyio.py b/Lib/_pyio.py
index 3306c8a27476..1b5b75ef566a 100644
--- a/Lib/_pyio.py
+++ b/Lib/_pyio.py
@@ -10,7 +10,7 @@ import stat
 import sys
 # Import _thread instead of threading to reduce startup cost
 from _thread import allocate_lock as Lock
-if sys.platform in {'win32', 'cygwin'}:
+if sys.platform == 'win32':
     from msvcrt import setmode as _setmode
 else:
     _setmode = None