Coloring a string using latex in matplotlib

Question

I am trying to colour a string using latex in matplotlib and using the following code, see here:

import matplotlib.pyplot as plt
import matplotlib
matplotlib.use('ps')
from matplotlib import rc

rc('text',usetex=True)
rc('text.latex', preamble='\usepackage{color}')

plt.figure()
plt.ylabel(r'\textcolor{red}{Today} '+
           r'\textcolor{green}{is} '+
           r'\textcolor{blue}{cloudy.}')

But on executing the above code I am getting the following error:

 File "<ipython-input-38-6ffb8d156b19>", line 7
    rc('text.latex', preamble='\usepackage{color}')
                             ^
SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 0-1: truncated \uXXXX escape

Does anyone know what should I add/update to the code to remove the error so that the code works perfectly as expected?

score 1 · Answer 1 · answered Aug 28 '20 at 17:12

1

You need to escape the \ character in preamble='\usepackage{color}'. You have two options for this.

you can use a raw string:

rc('text.latex', preamble=r'\usepackage{color}')

you can escape the \ in the string itself:

rc('text.latex', preamble='\\usepackage{color}')

answered Aug 28 '20 at 17:12

tmdavison

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Now the code is outputting the following error: `RuntimeError: Failed to process string with tex because latex could not be found` – slothfulwave612 Aug 28 '20 at 23:22
That means you don't have latex installed on your sysyem – tmdavison Aug 30 '20 at 02:11

Coloring a string using latex in matplotlib

1 Answers1