设置Matplotlib MPLCONFIGDIR:考虑将MPLCONFIGDIR设置为matplotlib配置数据的可写目录 [英] Setting Matplotlib MPLCONFIGDIR: consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data

问题描述

我正在使用Linux服务器来设置django项目.我收到此错误:无法创建/var/www/.matplotlib；请考虑将MPLCONFIGDIR设置为matplotlib配置数据的可写目录"

I am using Linux server to set up a django project. I got this error: "Failed to create /var/www/.matplotlib; consider setting MPLCONFIGDIR to a writable directory for matplotlib configuration data"

然后我发现$ MPLCONFIGDIR为空.因此，我将其设置如下:

Then I found $MPLCONFIGDIR are empty. So I set it like this:

lab@base:~$ export MPLCONFIGDIR=~/website/graph
lab@base:~$ echo $MPLCONFIGDIR
/home/lab/website/graph

此路径是我要存储Matplotlib创建的图像的目录. 然后，请确保在python命令行中使用此设置:

This path is the directory where I want to store images created by Matplotlib. Then I made sure this setting in python command line:

>>> import matplotlib
>>> import os
>>> os.environ.get('MPLCONFIGDIR')
'/home/lab/website/graph'

但是，在使用mod_wsgi在Apache中部署的django项目中，上述错误仍然存​​在.我添加了以下几行:

BUT, in the django project which is deployed in Apache with mod_wsgi, the above-mentioned error still exits. I added the below lines:

import os
os.environ['MPLCONFIGDIR'] = "/home/lab/website/graph"
print(os.environ.get('MPLCONFIGDIR'))

它打印无"！

有人可以帮助我吗?

谢谢.

推荐答案

在导入matplotlib之前，在代码中设置MPLCONFIGDIR.确保目录具有权限，以便应用程序可以将其写入.

Set the MPLCONFIGDIR in code before you import matplotlib. Make sure the directory has permissions such that it can be written to by the app.

import os
os.environ['MPLCONFIGDIR'] = "/home/lab/website/graph"
import matplotlib

或者，您可以将其设置为临时文件.

Alternatively, you could set it to a tempfile.

import os    
import tempfile
os.environ['MPLCONFIGDIR'] = tempfile.mkdtemp()
import matplotlib

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