问题描述
我正在运行Mac OSX 10.5.8.我使用macports安装了matplotlib.我从matplotlib画廊获得了一些像这样的示例，而无需进行修改:
I am running Mac OSX 10.5.8. I installed matplotlib using macports. I get some examples from the matplotlib gallery like this one, without modification:
http://matplotlib.sourceforge.net/examples/api/unicode_minus.html
我运行它，没有错误，但是图片没有显示.在Linux Ubuntu中，我明白了.
I run it, get no error, but the picture does not show up. In Linux Ubuntu I get it.
您知道这里可能出什么问题吗?
Do you know what could be wrong here?
推荐答案
我也可以在此进行验证.要解决，这是我所做的
I can verify this on my end as well. To fix, here's what I did
sudo port install py25-matplotlib +cairo+gtk2
sudo port install py26-matplotlib +cairo+gtk2
此外，我们需要将默认后端更改为基于GUI的后端.
Also, we need to change the default backend to a GUI based one.
编辑文件~/.matplotlib/matplotlibrc，然后添加:
backend: GTKCairo
此外，您可以尝试以下操作，这可能使您不需要GTK或Cairo后端.编辑~/.matplotlib/matplotlibrc并添加:
Also, you can try the following, which may allow you to not need the GTK or Cairo backends.Edit ~/.matplotlib/matplotlibrc and add:
backend: MacOSX
安装了具有这些变体的端口后，它也可以正常工作，但是不需要X11.
With the port with those variants installed, this works as well, but it doesn't require X11.
顺便说一句，我看到的错误如下:
By the way, the error that I saw was the following:
/opt/local/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/backends/__init__.py:41: UserWarning:
Your currently selected backend, 'Agg' does not support show().
Please select a GUI backend in your matplotlibrc file ('/Users/wlynch/.matplotlib/matplotlibrc') or with matplotlib.use()
(backend, matplotlib.matplotlib_fname()))
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