New submission from ganges master <gangesmas...@users.sourceforge.net>:
Attempting to read from stdout of a running process seems broken on Python3.2. I've been able to reproduce this on Ubuntu 11.4 and Windows 7 (with /bin/sh installed as part of git for windows) Python 3.2 (r32:88445, Dec 8 2011, 15:26:51) [GCC 4.5.2] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> from subprocess import Popen, PIPE >>> p=Popen(["/bin/sh"], stdin=PIPE, stderr=PIPE, stdout=PIPE) >>> p.stdin.write(b"echo hello\n") 11 >>> p.stdout.readline() <stuck> >>> from subprocess import Popen, PIPE >>> p=Popen(["/bin/sh"], stdin=PIPE, stderr=PIPE, stdout=PIPE) >>> p.stdin.write(b"echo hello\n") 11 >>> p.stdout.read(2) <stuck> For comparison, on python 2.7 (again, linux and windows: Python 2.7.1+ (r271:86832, Apr 11 2011, 18:05:24) [GCC 4.5.2] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> from subprocess import Popen, PIPE >>> p=Popen(["/bin/sh"], stdin=PIPE, stderr=PIPE, stdout=PIPE) >>> p.stdin.write(b"echo hello\n") >>> p.stdout.readline() 'hello\n' >>> ---------- components: Library (Lib) messages: 160075 nosy: gangesmaster priority: normal severity: normal status: open title: subprocess.Popen pipes not working versions: Python 3.2 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue14737> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com