Fredrik Lundh:

The new filecmp module has an optional argument called use_statcache
which is documented as a true/false value, but used as an tuple index.

This patches replaces the tuple stuff with a good old if- statement,
and also removes a few other tuple pack/unpack constructs (if not
else, this saves a few bytes in the PYC file, and a few microseconds
when using the module ;-).