Python formatter has bad default font

[AdamRiesel]

The default font is currently something bad (idk what it is)

A simple fix is to add this line plt.rc('font', family='serif') when setting font settings in line 59-66.

This solution doesn't need latex installed to compile but still produces a nice font which is very similar (or the same) as what latex defaults to.

Before:

After:

[nackjaylor]

Make a PR - we never got around to fixing some of the formatting code. You will find that I think the serif font is your computers default serif font, so probably Times New Roman.

Best thing to do would be to check if cmu-serif is found, and if not write a nasty warning message that they are missing LaTeX on their computer and should see the error of their ways, and then set to another appropriate font if needed.