在Windows中，使用text.usetex时无法将matplotlib图形保存为.eps [英] Can´t save matplotlib figure to .eps in Windows while using text.usetex : True

问题描述

当我运行以下代码时: http://dpaste.com/0210P09 在Linux上一切正常发行版.

When I run the following code: http://dpaste.com/0210P09 everything works fine on my Linux distro.

但是，在Windows7(64位)中，我无法成功将其保存在eps或svg中.

However, in Windows7 (64bit) I cannot successfully save it in eps or svg.

这是我得到的错误:

Traceback (most recent call last):

  File "<ipython-input-1-b8da411d11b0>", line 1, in <module>
    runfile('C:/Users/12151056/Documents/Python Scripts/MyPython/1Tplot_2.py', wdir='C:/Users/12151056/Documents/Python Scripts/MyPython')

  File "C:\Users\12151056\AppData\Local\Continuum\Anaconda3\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 685, in runfile
    execfile(filename, namespace)

  File "C:\Users\12151056\AppData\Local\Continuum\Anaconda3\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 85, in execfile
    exec(compile(open(filename, 'rb').read(), filename, 'exec'), namespace)

  File "C:/Users/12151056/Documents/Python Scripts/MyPython/1Tplot_2.py", line 67, in <module>
    plt.savefig('excel-6.eps')

  File "C:\Users\12151056\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\pyplot.py", line 577, in savefig
    res = fig.savefig(*args, **kwargs)

  File "C:\Users\12151056\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\figure.py", line 1476, in savefig
    self.canvas.print_figure(*args, **kwargs)

  File "C:\Users\12151056\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\backend_bases.py", line 2211, in print_figure
    **kwargs)

  File "C:\Users\12151056\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\backends\backend_ps.py", line 1009, in print_eps
    return self._print_ps(outfile, 'eps', *args, **kwargs)

  File "C:\Users\12151056\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\backends\backend_ps.py", line 1033, in _print_ps
    **kwargs)

  File "C:\Users\12151056\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\backends\backend_ps.py", line 1398, in _print_figure_tex
    rotated=psfrag_rotated)

  File "C:\Users\12151056\AppData\Local\Continuum\Anaconda3\lib\site-packages\matplotlib\backends\backend_ps.py", line 1556, in gs_distill
    your image.\nHere is the full report generated by ghostscript:\n\n' + fh.read())

TypeError: Can't convert 'bytes' object to str implicitly

如果我使用text.usetex : False，我一点问题都没有.

If i use text.usetex : False I have no problem at all.

我已经安装了livetex full和Ghostscript.

I have livetex full and Ghostscript installed.

有什么建议可以尝试解决吗?

Any suggestions to try and solve it?

推荐答案

这里有两个问题.第一个和次要的是

There are two problems here. The first and minor one is that in

C:\ Users \ 12151056 \ AppData \ Local \ Continuum \ Anaconda3 \ lib \ site-package \ matplotlib \ backends \ backend_ps.py"，行1556

C:\Users\12151056\AppData\Local\Continuum\Anaconda3\lib\site-package\matplotlib\backends\backend_ps.py", line 1556

您应该更改

fh.read()

到

fh.read().decode()

这是一个Python 2/3错误，发生在处理Ghostscript出错的事实时.

This is a Python 2/3 bug, that occurs while handling the fact that something with Ghostscript went wrong.

主要问题是matplotlib找不到Ghostscript，因为它不在路径环境变量中.您可以通过打开命令提示符并尝试使用命令gswin32c或gs进行检查.如果找不到这些命令，则必须将这些Ghostscript可执行文件的路径添加到path环境变量中.在我的情况下是:

The main problem is that matplotlib cannot find Ghostscript because it is not in the path environmental variable. You can check that by opening a command prompt and trying the command gswin32c or gs. If these commands are not found you have to add the path of these Ghostscript executables to the path environmental variable. In my case it was:

C:\ Program Files(x86)\ gs \ gs8.54 \ bin

C:\Program Files (x86)\gs\gs8.54\bin

但这取决于您的安装路径.

but it depends on your installation path.

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