ipython/ipython — pull request #2689 by Carreau (2012-12-16 13:16:59+00:00)
Title: fix error in doc (arg->kwarg) and pep-8

Fix error in doc :
```diff
"""
- super(MyConfigurable, self).__init__(config)
+ super(MyConfigurable, self).__init__(config=config)
"""
```

Use this as an occasion to pep-8 the files a little and remove useless imports.