在fedora 20上的现代texlive安装中,在savefig中使用pgf后端失败(' blah.pdf')。
示例:
# -*- coding: utf-8 -*-
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)
追溯:
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
答案 0 :(得分:1)
好的,问题是根据http://matplotlib.org/1.3.1/users/pgf.html 默认的tex处理器是xelatex,它未安装。或 1)sudo yum install texlive-xetex-bin 要么 2)设置pgf使用其他乳胶处理器:
pgf_with_pdflatex = {
"pgf.texsystem": "lualatex",
"pgf.preamble": [
r'\usepackage{amsmath}',
r'\usepackage[scientific-notation=true]{siunitx}',
## r"\usepackage[utf8x]{inputenc}",
## r"\usepackage[T1]{fontenc}",
]
}
mpl.rcParams.update(pgf_with_pdflatex)