title: LaTeX doesn't work in matplotlib (Python 2.7.13 | Anaconda (64-bit))
body: <p>I have this very simple code and I am trying write in LaTeX</p>
  
  <pre><code>import numpy as np
  import matplotlib.pyplot as plt
  
  plt.rc('font', **{'family': 'serif', 'serif': ['Computer Modern']})
  plt.rc('text', usetex=True)
  
  plt.pcolor(np.arange(20).reshape(4,5))
  cb = plt.colorbar(label=r'\textbf{a label}')
  plt.show()
  </code></pre>
  
  <p>I get this error:</p>
  
  <pre><code>'latex' n�est pas reconnu en tant que commande interne
  ou externe, un programme ex�cutable ou un fichier de commandes.
  Traceback (most recent call last):
    File "C:\Anaconda2\lib\site-packages\matplotlib\backends\backend_qt5agg.py", line 197, in __draw_idle_agg
      FigureCanvasAgg.draw(self)
    File "C:\Anaconda2\lib\site-packages\matplotlib\backends\backend_agg.py", line 464, in draw
      self.figure.draw(self.renderer)
    File "C:\Anaconda2\lib\site-packages\matplotlib\artist.py", line 63, in draw_wrapper
      draw(artist, renderer, *args, **kwargs)
    File "C:\Anaconda2\lib\site-packages\matplotlib\figure.py", line 1143, in draw
      renderer, self, dsu, self.suppressComposite)
    File "C:\Anaconda2\lib\site-packages\matplotlib\image.py", line 139, in _draw_list_compositing_images
      a.draw(renderer)
    File "C:\Anaconda2\lib\site-packages\matplotlib\artist.py", line 63, in draw_wrapper
      draw(artist, renderer, *args, **kwargs)
    File "C:\Anaconda2\lib\site-packages\matplotlib\axes\_base.py", line 2409, in draw
      mimage._draw_list_compositing_images(renderer, self, dsu)
    File "C:\Anaconda2\lib\site-packages\matplotlib\image.py", line 139, in _draw_list_compositing_images
      a.draw(renderer)
    File "C:\Anaconda2\lib\site-packages\matplotlib\artist.py", line 63, in draw_wrapper
      draw(artist, renderer, *args, **kwargs)
    File "C:\Anaconda2\lib\site-packages\matplotlib\axis.py", line 1138, in draw
      renderer)
    File "C:\Anaconda2\lib\site-packages\matplotlib\axis.py", line 1078, in _get_tick_bboxes
      extent = tick.label1.get_window_extent(renderer)
    File "C:\Anaconda2\lib\site-packages\matplotlib\text.py", line 967, in get_window_extent
      bbox, info, descent = self._get_layout(self._renderer)
    File "C:\Anaconda2\lib\site-packages\matplotlib\text.py", line 353, in _get_layout
      ismath=False)
    File "C:\Anaconda2\lib\site-packages\matplotlib\backends\backend_agg.py", line 230, in get_text_width_height_descent
      renderer=self)
    File "C:\Anaconda2\lib\site-packages\matplotlib\texmanager.py", line 676, in get_text_width_height_descent
      dvifile = self.make_dvi(tex, fontsize)
    File "C:\Anaconda2\lib\site-packages\matplotlib\texmanager.py", line 423, in make_dvi
      report))
  RuntimeError: LaTeX was not able to process the following string:
  'lp'
  Here is the full report generated by LaTeX: 
  </code></pre>
  
  <p><strong>Translation:</strong></p>
  
  <p><code>'latex' n�est pas reconnu en tant que commande interne ou externe, un programme ex�cutable ou un fichier de commandes.</code> means <code>'latex' is not recognized as an internal or external command, an executable program, or a batch file.</code></p>
  
  <p>How can I fix this error ?</p>
  
  <p>My Python:</p>
  
  <p>Python 2.7.13 |Anaconda custom (64-bit)| (default, Dec 19 2016, 13:29:36) [MSC v.1500 64 bit (AMD64)] on win32</p>