matplotlib/matplotlib — pull request #3310 by cgohlke (2014-07-26 17:15:09+00:00)
Title: Fix MatplotlibDeprecationWarning: The "loc" positional argument to legend is deprecated

```
X:\Python34\lib\site-packages\matplotlib\cbook.py:133: MatplotlibDeprecationWarning: The "loc" positional argument to legend is deprecated. Please use the "loc" keyword instead.
warnings.warn(message, mplDeprecation, stacklevel=1)
```