RuntimeError: Python is not installed as a framework 錯誤解決方案

在virtualenv環境下使用matplotlib繪圖時遇到了這樣的問題：

>>> import matplotlib.pyplot as plt
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
...

in <module>
from matplotlib.backends import _macosx
RuntimeError: Python is not installed as a framework. The Mac OS X backend will not be able to function correctly if Python is not installed as a framework. See the Python documentation for more information on installing Python as a framework on Mac OS X. Please either reinstall Python as a framework, or try one of the other backends. If you are Working with Matplotlib in a virtual enviroment see 'Working with Matplotlib in Virtual environments' in the Matplotlib FAQ

 

彷佛是由於虛擬環境與默認環境的安裝配置不一樣形成的。

搜索錯誤信息以後，在STO上找到了解決方案：

 

一、pip安裝matplotlib以後，會在根目錄下產生一個.matplotlib的目錄:

➜ bin ll ~/.matplotlib
total 280
-rw-r--r-- 1 me staff 78K 10 4 2015 fontList.cache
-rw-r--r-- 1 me staff 59K 1 17 15:56 fontList.py3k.cache
drwxr-xr-x 2 me staff 68B 10 4 2015 tex.cache

 

二、在這個目錄下建立一個名爲matplotlibrc的文件，內容是：

backend: TkAgg

而後保存退出，重啓Python交互界面或從新運行腳本，import正常執行。

 

STO答案地址：http://stackoverflow.com/questions/21784641/installation-issue-with-matplotlib-python