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improve error message when pgf can't find tex executable #3051

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nbecker opened this issue May 7, 2014 · 2 comments · Fixed by #3158
Closed

improve error message when pgf can't find tex executable #3051

nbecker opened this issue May 7, 2014 · 2 comments · Fixed by #3158
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@nbecker
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nbecker commented May 7, 2014

This example:

import matplotlib as mpl
mpl.use("pgf")
pgf_with_rc_fonts = {
    "font.family": "serif",
    "font.serif": [],                   # use latex default serif font
    "font.sans-serif": ["DejaVu Sans"], # use a specific sans-serif font
}
mpl.rcParams.update(pgf_with_rc_fonts)

import matplotlib.pyplot as plt
plt.figure(figsize=(4.5,2.5))
plt.plot(range(5))
plt.text(0.5, 3., "serif")
plt.text(0.5, 2., "monospace", family="monospace")
plt.text(2.5, 2., "sans-serif", family="sans-serif")
plt.text(2.5, 1., "comic sans", family="Comic Sans MS")
plt.xlabel(u"µ is not $\\mu$")
plt.tight_layout(.5)

produces:

python testpgf.py 
/usr/lib64/python2.7/site-packages/matplotlib/__init__.py:758: UserWarning: 
Found matplotlib configuration in ~/.matplotlib/. To conform with the XDG base 
directory standard, this configuration location has been deprecated on Linux, 
and the new location is now '/home/nbecker/.config'/matplotlib/. Please move 
your configuration there to ensure that matplotlib will continue to find it in 
the future.
  _get_xdg_config_dir())
Traceback (most recent call last):
  File "testpgf.py", line 20, in <module>
    plt.tight_layout(.5)
  File "/usr/lib64/python2.7/site-packages/matplotlib/pyplot.py", line 1255, in 
tight_layout
    fig.tight_layout(pad=pad, h_pad=h_pad, w_pad=w_pad, rect=rect)
  File "/usr/lib64/python2.7/site-packages/matplotlib/figure.py", line 1600, in 
tight_layout
    renderer = get_renderer(self)
  File "/usr/lib64/python2.7/site-packages/matplotlib/tight_layout.py", line 
222, in get_renderer
    renderer = canvas.get_renderer()
  File "/usr/lib64/python2.7/site-packages/matplotlib/backends/backend_pgf.py", 
line 925, in get_renderer
    return RendererPgf(self.figure, None, dummy=True)
  File "/usr/lib64/python2.7/site-packages/matplotlib/backends/backend_pgf.py", 
line 409, in __init__
    self.latexManager = LatexManagerFactory.get_latex_manager()
  File "/usr/lib64/python2.7/site-packages/matplotlib/backends/backend_pgf.py", 
line 223, in get_latex_manager
    new_inst = LatexManager()
  File "/usr/lib64/python2.7/site-packages/matplotlib/backends/backend_pgf.py", 
line 305, in __init__
    cwd=self.tmpdir)
  File "/usr/lib64/python2.7/subprocess.py", line 711, in __init__
    errread, errwrite)
  File "/usr/lib64/python2.7/subprocess.py", line 1308, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory

when xelatex is not found. No clue is given as to what file or directory wasn't found.

@efiring
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efiring commented May 7, 2014

@pwuertz, would you look at this, please?

@tacaswell tacaswell modified the milestones: v1.4.0, v1.4.x May 17, 2014
@pelson
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pelson commented Jun 18, 2014

Ping.

tacaswell added a commit that referenced this issue Jun 27, 2014
backend_pgf: Error message for missing latex executable (fix #3051)
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5 participants