commit 425756abdc03263ab3a52b068befd1ddb16c2dd2
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Tue Jul 13 12:48:23 2021 -0700
committer GitHub <noreply@github.com> Tue Jul 13 20:48:23 2021 +0100
tree fb726cd35e918d769a74610e7c15b20be1e3dcb3
parent 9b369c952cbefb064dda6cb781e66cc1b793fffa

bpo-44572: On Windows, disconnect STDIN in platform._syscmd_ver() to prevent erroneous STDIN consumption (GH-27092) (GH-27124)

(cherry picked from commit 0ee0a740e12ec8568aafa033aa6bb08b265afe26)

Co-authored-by: Konstantin-Glukhov <glukhov.k@gmail.com>

Lib/platform.py

diff --git a/Lib/platform.py b/Lib/platform.py
index d298a42..134fbae 100755
--- a/Lib/platform.py
+++ b/Lib/platform.py
@@ -280,6 +280,7 @@ def _syscmd_ver(system='', release='', version='',
     for cmd in ('ver', 'command /c ver', 'cmd /c ver'):
         try:
             info = subprocess.check_output(cmd,
+                                           stdin=subprocess.DEVNULL,
                                            stderr=subprocess.DEVNULL,
                                            text=True,
                                            shell=True)