Make part of a matplotlib title bold and a different color

Question

I would like to change part of a title to be bold. For example:

plt.title(\"This is title number: \" + str(number))

Given a title like the

Answer 1

activate latex text rendering

from matplotlib import rc
rc('text', usetex=True)

plt.title("This is title number: " + r"\textbf{" + str(number) + "}")