[Python] matpltlib import 에서 발생한 에러

파이썬에서 matplotlib을 import하는데 아래와 같은 에러가 발생했다. 

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 

>>> import matplotlib.pyplot as plt

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

  File "//anaconda/envs/myenv/lib/python2.7/site-packages/matplotlib/pyplot.py", line 109, in <module>

    _backend_mod, new_figure_manager, draw_if_interactive, _show = pylab_setup()

  File "//anaconda/envs/myenv/lib/python2.7/site-packages/matplotlib/backends/__init__.py", line 32, in pylab_setup

    globals(),locals(),[backend_name],0)

  File "//anaconda/envs/myenv/lib/python2.7/site-packages/matplotlib/backends/backend_macosx.py", line 24, 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

This solution worked for me. If you already installed matplotlib using pip on your virtual environment, you can just type the following:

$ cd ~/.matplotlib

$ nano matplotlibrc

And then, write backend: TkAgg in there. If you need more information, just go to the solution link

[참고] 

http://stackoverflow.com/questions/29433824/unable-to-import-matplotlib-pyplot-as-plt-in-virtualenv