我pip安装了python以及matplotlib，但是当我输入命令“import matplotlib.pyplot as plt”时，我不断得到下面的错误，即使在创建matplotlibrc文件（原来不是那里）之后〜/ .matplotlib目录，行“backend：TKAgg”
RuntimeError Traceback (most recent call last)
<ipython-input-17-eff513f636fd> in <module>()
----> 1 import matplotlib.pyplot as plt
/Users/guoj/miniconda2/lib/python2.7/site-packages/matplotlib/pyplot.py in <module>()
112
113 from matplotlib.backends import pylab_setup
--> 114 _backend_mod, new_figure_manager, draw_if_interactive, _show = pylab_setup()
115
116 _IP_REGISTERED = None
/Users/guoj/miniconda2/lib/python2.7/site-packages/matplotlib/backends/__init__.pyc in pylab_setup()
30 # imports. 0 means only perform absolute imports.
31 backend_mod = __import__(backend_name,
---> 32 globals(),locals(),[backend_name],0)
33
34 # Things we pull in from all backends
/Users/guoj/miniconda2/lib/python2.7/site-packages/matplotlib/backends/backend_macosx.py in <module>()
22
23 import matplotlib
---> 24 from matplotlib.backends import _macosx
25
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