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Description of problem:
In RHEL 6.1's python we backported the optional "timeout" option to various methods of the subprocess.Popen from upstream Python 3 to our python 2.6
Specifically patch 131 in python.src.rpm added the optional "timeout" argument to the following API entrypoints:
subprocess.call
Popen.communicate
Popen.wait
based on the feature that eventually landed in Python 3.3 (this was http://bugs.python.org/issue5673)
Unfortunately this breaks 3rd party code that monkeypatches subprocess.Popen, such as eventlet:
http://www.mail-archive.com/openstack@lists.launchpad.net/msg02545.html
Version-Release number of selected component (if applicable):
Added in python-2.6.6-7.el6 (RHEL 6.1)
How reproducible:
100%
Steps to Reproduce:
Run this python script:
------------------------------------------------------------
import subprocess
old_Popen = subprocess.Popen
class Subclass(old_Popen):
def wait(self):
return old_Popen.wait(self)
subprocess.Popen = Subclass
print subprocess.call(['echo', 'foo'])
------------------------------------------------------------
Actual results:
Traceback with:
TypeError: wait() got an unexpected keyword argument 'timeout'
Expected results:
Should successfully run the subprocess
Additional info: