[Python-checkins] r76640 - python/trunk/Doc/library/subprocess.rst
philip.jenvey
python-checkins at python.org
Thu Dec 3 03:25:54 CET 2009
Author: philip.jenvey
Date: Thu Dec 3 03:25:54 2009
New Revision: 76640
Log:
#7177: clarify the potential PIPE deadlock warnings
Modified:
python/trunk/Doc/library/subprocess.rst
Modified: python/trunk/Doc/library/subprocess.rst
==============================================================================
--- python/trunk/Doc/library/subprocess.rst (original)
+++ python/trunk/Doc/library/subprocess.rst Thu Dec 3 03:25:54 2009
@@ -166,9 +166,10 @@
.. warning::
- Like :meth:`Popen.wait`, this will deadlock if the child process
- generates enough output to a stdout or stderr pipe such that it blocks
- waiting for the OS pipe buffer to accept more data.
+ Like :meth:`Popen.wait`, this will deadlock when using
+ ``stdout=PIPE`` and/or ``stderr=PIPE`` and the child process
+ generates enough output to a pipe such that it blocks waiting
+ for the OS pipe buffer to accept more data.
.. function:: check_call(*popenargs, **kwargs)
@@ -260,9 +261,10 @@
.. warning::
- This will deadlock if the child process generates enough output to a
- stdout or stderr pipe such that it blocks waiting for the OS pipe buffer
- to accept more data. Use :meth:`communicate` to avoid that.
+ This will deadlock when using ``stdout=PIPE`` and/or
+ ``stderr=PIPE`` and the child process generates enough output to
+ a pipe such that it blocks waiting for the OS pipe buffer to
+ accept more data. Use :meth:`communicate` to avoid that.
.. method:: Popen.communicate(input=None)
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