Eryk Sun added the comment: The error() function in PC/launcher.c should call exit(rc) instead of ExitProcess(rc). This allows the CRT to terminate properly and flush the stderr FILE stream. With this change it works as expected:
>>> import subprocess >>> p = subprocess.Popen(r'amd64\py_d -3.7', stderr=subprocess.PIPE) >>> p.stderr.read() b'Requested Python version (3.7) not installed\r\n' ---------- keywords: +patch nosy: +eryksun stage: -> patch review Added file: http://bugs.python.org/file41228/issue25789_1.patch _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25789> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com