[issue15178] Doctest should handle situations when test files are not readable

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Added few nitpicks on Rietveld.

----------
nosy: +serhiy.storchaka

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue15178>
_______________________________________