python - Errors occur when I import matplotlib and seaborn in OSX -

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this question has answer here:

i installed matplotlib , seaborn successfully, however, when import them in python shell, many errors occur. 

python 2.7.11 |anaconda 2.5.0 (x86_64)| (default, dec  6 2015, 18:57:58)  [gcc 4.2.1 (apple inc. build 5577)] on darwin type "help", "copyright", "credits" or "license" more information. anaconda brought continuum analytics. please check out: http://continuum.io/thanks , https://anaconda.org  traceback (most recent call last):   file "<stdin>", line 1, in <module>   file "/users/guanqingliang/anaconda/lib/python2.7/site-packages/matplotlib/__init__.py", line 1131, in <module>     rcparams = rc_params()   file "/users/guanqingliang/anaconda/lib/python2.7/site-packages/matplotlib/__init__.py", line 975, in rc_params     return rc_params_from_file(fname, fail_on_error)   file "/users/guanqingliang/anaconda/lib/python2.7/site-packages/matplotlib/__init__.py", line 1100, in rc_params_from_file     config_from_file = _rc_params_in_file(fname, fail_on_error)   file "/users/guanqingliang/anaconda/lib/python2.7/site-packages/matplotlib/__init__.py", line 1018, in _rc_params_in_file     _open_file_or_url(fname) fd:   file "/users/guanqingliang/anaconda/lib/python2.7/contextlib.py", line 17, in __enter__     return self.gen.next()   file "/users/guanqingliang/anaconda/lib/python2.7/site-packages/matplotlib/__init__.py", line 1000, in _open_file_or_url     encoding = locale.getdefaultlocale()[1]   file "/users/guanqingliang/anaconda/lib/python2.7/locale.py", line 543, in getdefaultlocale     return _parse_localename(localename)   file "/users/guanqingliang/anaconda/lib/py`enter code here`thon2.7/locale.py", line 475, in _parse_localename     raise valueerror, 'unknown locale: %s' % localename valueerror: unknown locale: utf-8

you need add following 2 lines ~/.bash_profile , type source ~/.bash_profile or restart terminal:

export lc_all=en_us.utf-8 export lang=en_us.utf-8

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