Two __unicode__ methods did string interpolation using a str instance instead of a unicode instance. This ends up calling unicode(str(foo)) using the default encoding (ascii) for the interpolation arguments, raising UnicodeDecodeErrors on some cases.
Two __unicode__ methods did string interpolation using a str instance instead of
a unicode instance. This ends up calling unicode(str(foo)) using the default
encoding (ascii) for the interpolation arguments, raising UnicodeDecodeErrors on
some cases.

Patch from Leo Soto.  Fixes bug 409.




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