[issue16650] Popen._internal_poll() references errno.ECHILD outside of the local scope

[Terry J. Reedy]

Changes by Terry J. Reedy <tjreedy at udel.edu>:


----------
versions:  -Python 3.2

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue16650>
_______________________________________