cython/cython — pull request #241 by naufraghi (2013-06-27 21:46:58+00:00)
Title: Fix docstring

The previous docstring was resulting in None

```
>>> class Foo:
... """Parent class."""
...
>>> class Bar(Foo):
... Foo.__doc__ + \
... """ Child class."""
...
>>> Foo.__doc__
'Parent class.'
>>> Bar.__doc__
<---------- (None)
>>> class Bar2(Foo):
... """ Child class."""
... __doc__ = Foo.__doc__ + __doc__
...
>>> Bar2.__doc__
'Parent class. Child class.'
```

This code still has some problem with -OO, resulting in:

```
TypeError: cannot concatenate 'str' and 'NoneType' objects
```