[issue25320] unittest loader.py TypeError when code directory contains a socket

[Ezio Melotti]

Ezio Melotti added the comment:

The fix looks ok, however the test seem to contain unnecessary code and it duplicates most of the previous test.
I left a more detailed review on rietveld (see the "review" link next to the patch).

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type:  -> behavior

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<http://bugs.python.org/issue25320>
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