Fancy pants

Test results
```
ERROR:   check: commands failed
ERROR:   2.6: commands failed
ERROR:   2.6-nocover: commands failed
  2.7: commands succeeded
  2.7-nocover: commands succeeded
ERROR:   3.3: commands failed
ERROR:   3.3-nocover: InvocationError: /home/ionel/osp/coinop-py/.tox/3.3-nocover/bin/pip install --pre /home/ionel/osp/coinop-py/.tox/dist/coinop-0.1.0.zip (see /home/ionel/osp/coinop-py/.tox/3.3-nocover/log/3.3-nocover-2.log)
ERROR:   3.4: commands failed
ERROR:   3.4-nocover: commands failed
  pypy: commands succeeded
  pypy-nocover: commands succeeded
```