There are 4 occurences of ``__author__`` in the mpl codebase

```python
examples/api/sankey_demo_old.py:__author__ = "Yannick Copin <ycopin@ipnl.in2p3.fr>"
examples/user_interfaces/interactive.py:__author__ = "Fernando Perez <Fernando.Perez@colorado.edu>"
examples/user_interfaces/svg_histogram.py:__author__="david.huard@gmail.com"
lib/matplotlib/sankey.py:__author__ = "Kevin L. Davies"

```