Updating the Matplotlib Font Cache

When publishing papers or articles, I want my plots to integrate with the text surrounding them. I want them to use the correct font size, and the correct font.

This is easy to do with Matplotlib:

import matplotlib
matplotlib.rcParams['font.size'] = 12
matplotlib.rcParams['font.family'] = 'Calibri'

However, sometimes, Matplotlib won't find the correct, even though it is clearly installed. This happens when Matplotlib's internal font cache is out of date.

To refresh the font cache, use

matplotlib.font_manager._rebuild()

Happy Plotting!