New submission from Vaibhav Mallya <mally...@umich.edu>: Python 2.6.1 (r261:67515, Mar 22 2009, 05:39:39) [GCC 4.2.4 (Ubuntu 4.2.4-1ubuntu4)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> from multiprocessing import Pipe >>> parent, child = Pipe() >>> parent.send(1) >>> parent.close() >>> print child.recv() 1 >>> print child.poll() True >>> print child.recv() Traceback (most recent call last): File "<stdin>", line 1, in <module> EOFError
We have to use both poll() and recv() to determine whether or not the connection was actually closed. Better behavior might be returning True on poll() only if the next recv() on that end of the pipe will work without an error. There may not be a way to guarantee this, but it would be useful if the documentation was clarified either way. uname -a: Linux mememy 2.6.24-23-generic #1 SMP Thu Feb 5 15:00:25 UTC 2009 i686 GNU/Linux Compiled Python 2.6.1 from source. ---------- assignee: georg.brandl components: Documentation, Library (Lib) messages: 84204 nosy: georg.brandl, mallyvai severity: normal status: open title: multiprocessing Pipe poll() and recv() semantics. type: behavior versions: Python 2.6 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue5573> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
