python - Greek letters are printed bold in matplotlib latex output -


i'm using latex output in matplotlib print greek symbols axis , legends. (serif) text printed in normal font weight, special characters printed in bold. in particular, mean mu micro, (non-greek) symbol angstrom. however, other greek symbols omega printed normally. made little example demonstrate:

#!/usr/bin/python # -*- coding: utf-8 -*-  import matplotlib mpl import matplotlib.pyplot plt   mpl.rcparams['text.usetex'] = true mpl.rcparams['text.latex.unicode'] = true  mpl.rcparams['font.family'] = 'serif' mpl.rcparams['text.latex.preamble'] = [     r"\usepackage{textgreek}",     r"\usepackage{siunitx}"]   fig = plt.figure()  plt.plot([1, 2, 4], [0, 9, 7]) plt.xlabel(     r"\si{\micro\metre} " +     r"\si{\omega\metre} " +     r"\si{\nano\metre} " +     r"\si{\angstrom} " +     r"\si{\micro\metre}\textmu") plt.show()  fig.savefig('test.png') fig.savefig('test.pdf')

i have issue on live output, vector output , image output. what's confusing me, used script month on outdate ubuntu machine on work, python 3.3 installed. tried run script on personal arch machine , issues.

it seems problem fonts have installed, in case fix problem specifying font want use following commands:

mpl.rcparams['font.serif'] = 'times'

a list of fonts available can found here: http://matplotlib.org/users/customizing.html


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