Closed
Description
Bug report
Bug summary
The pgf backend uses the minimal document class. It is incompatible with many packages, e.g., enumitem (uses font scaling) and thus does not create any output. Using this document class should apparently be avoided.
Code for reproduction
import matplotlib
import matplotlib.pyplot as plt
params = {
'pgf.texsystem': 'pdflatex',
'pgf.preamble': r'\usepackage{enumitem}',
}
matplotlib.rcParams.update(params)
print(matplotlib.get_backend())
plt.savefig('example.pgf')Actual outcome
(added line breaks to improve readability)
Traceback (most recent call last):
File "crashes.py", line 10, in <module>
plt.savefig('example.pgf')
File "...../matplotlib/pyplot.py", line 722, in savefig
res = fig.savefig(*args, **kwargs)
File "...../matplotlib/figure.py", line 2180, in savefig
self.canvas.print_figure(fname, **kwargs)
File "...../matplotlib/backend_bases.py", line 2082, in print_figure
result = print_method(
File "...../matplotlib/backends/backend_pgf.py", line 848, in print_pgf
self._print_pgf_to_fh(file, *args, **kwargs)
File "...../matplotlib/backends/backend_pgf.py", line 828, in _print_pgf_to_fh
RendererPgf(self.figure, fh),
File "...../matplotlib/backends/backend_pgf.py", line 397, in __init__
self.latexManager = LatexManager._get_cached_or_new()
File "...../matplotlib/backends/backend_pgf.py", line 233, in _get_cached_or_new
return cls._get_cached_or_new_impl(cls._build_latex_header())
File "...../matplotlib/backends/backend_pgf.py", line 238, in _get_cached_or_new_impl
return cls()
File "...../matplotlib/backends/backend_pgf.py", line 293, in __init__
raise LatexError("LaTeX returned an error, probably missing font "
matplotlib.backends.backend_pgf.LatexError: LaTeX returned an error, probably missing font or error in preamble:
b'This is pdfTeX, Version 3.14159265-2.6-1.40.21 (TeX Live 2020/Arch Linux) (preloaded format=pdflatex)\n
restricted \\write18 enabled.\n
**entering extended mode\n
LaTeX2e <2020-02-02> patch level 5\n
L3 programming layer <2020-06-03>\n
*\n
*(/usr/share/texmf-dist/tex/latex/base/minimal.cls\n
Document Class: minimal 2001/05/25 Standard LaTeX minimal class\n
)\n
*(/usr/share/texmf-dist/tex/latex/enumitem/enumitem.sty\n
! Undefined control sequence.\n
<argument> \\scriptsize \n
\n
l.1084 \\SetEnumitemSize{script}\\scriptsize
\n \n
! ==> Fatal error occurred, no output PDF file produced!\n
Transcript written on texput.log.\n'
Expected outcome
I expect this example to not crash. Changing the document class to article does not produce this error.
Suggestion
Make the document class an rcParam so that the user can decide and even use their own classes.
Matplotlib version
- Operating system: Manjaro Linux
- Matplotlib version: 3.1.2 (document class has not changed in the latest version)
- Matplotlib backend: TkAgg (but actually uses pgf)
- Python version: 3.8.3
Installed via pip in a venv.