How to write your own LaTeX preamble in Matplotlib?

Question

I\'m trying to create a figure in matplotlib to insert in my LaTeX document, and I need the bold \'i\' and \'j\' symbols

Answer 1

When I need to use LaTeX with matplotlib, I add the following to the python script (+ additional commands for debug info)

 import matplotlib.pyplot as plt

 plt.rc('text', usetex=True)
 plt.rc('text.latex', preamble=r'\usepackage{amsmath}
          \usepackage{foo-name} `...')
 matplotlib.verbose.level = 'debug-annoying'

commands to make your plot here