New submission from DaveB <junkmail4d...@gmail.com>:
os.dup(fd) generates an OSError for standard streams (0: stdin, 1: stdout, 2: stderr) on Windows 7. Works as expected on Windows 10. Working backwards we found the issue first appears in Python 3.7.4rc1 and 3.8.0b2 on Windows 7. Earlier releases work as expected. >>> import os >>> os.dup(1) Traceback (most recent call last): File "<stdin>", line 1, in <module> OSError: [WinError 87] The parameter is incorrect >>> ---------- components: Extension Modules messages: 347627 nosy: daveb priority: normal severity: normal status: open title: os.dup() fails for standard streams on Windows 7 type: behavior versions: Python 3.7, Python 3.8 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue37549> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
