Issue #151: python3 (conservancy/kallithea)

[Pietro Capriata]

New issue 151: python3
https://bitbucket.org/conservancy/kallithea/issues/151/python3

Pietro Capriata:

With python3 

python3 setup.py

```
#!python

File "setup.py", line 113
    except IOError, err:
                  ^
SyntaxError: invalid syntax

```