[issue21740] doctest doesn't allow duck-typing callables

[Roundup Robot]

Roundup Robot added the comment:

New changeset 12ef799a9a51 by Zachary Ware in branch 'default':
Issue #21740: Fix module name in NEWS entry.
https://hg.python.org/cpython/rev/12ef799a9a51

----------

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21740>
_______________________________________