Make Python 3 compatible

[loechel]

Hi, could you try to make short_url compatible with Python 3,

The statment """ n & ~self.mask """ returns an """ TypeError: unsupported operand type(s) for &: 'str' and 'int' """ on Python 3

[Alir3z4]

@loechel It's compatible, could you show how to reproduce it?

[mdxs]

Guess this issue can be closed, as it probably is due to trying to encode_url a string... similar to how http://code.activestate.com/recipes/576918/#c2 tries to shorten a full URL string and showing the same TypeError reported above.

[Alir3z4]

You're right.
I'm going to close this, thanks @mdxs