不导入anaconda python发行版的brian2

Question

当我在Anaconda的python发行版中尝试import brian2时，我会得到以下错误消息：

>> import brian2
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named brian

>>> import brian2
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "//anaconda/lib/python2.7/site-packages/brian2/__init__.py", line 37, in <module>
    from pylab import *
  File "//anaconda/lib/python2.7/site-packages/pylab.py", line 1, in <module>
    from matplotlib.pylab import *
  File "//anaconda/lib/python2.7/site-packages/matplotlib/__init__.py", line 1131, in <module>
    rcParams = rc_params()
  File "//anaconda/lib/python2.7/site-packages/matplotlib/__init__.py", line 975, in rc_params
    return rc_params_from_file(fname, fail_on_error)
  File "//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 "//anaconda/lib/python2.7/site-packages/matplotlib/__init__.py", line 1018, in _rc_params_in_file
    with _open_file_or_url(fname) as fd:
  File "//anaconda/lib/python2.7/contextlib.py", line 17, in __enter__
    return self.gen.next()
  File "//anaconda/lib/python2.7/site-packages/matplotlib/__init__.py", line 1000, in _open_file_or_url
    encoding = locale.getdefaultlocale()[1]
  File "//anaconda/lib/python2.7/locale.py", line 543, in getdefaultlocale
    return _parse_localename(localename)
  File "//anaconda/lib/python2.7/locale.py", line 475, in _parse_localename
    raise ValueError, 'unknown locale: %s' % localename
ValueError: unknown locale: UTF-8

我不明白为什么？这跟matplotlib和pylab有关吗？

Answer 1

这是OSX的一个错误，因为它们没有将本地env变量设置为标准值：

正如@msw在评论中说的那样，修复方法是：

export LANG=en_US.UTF-8

在你的地下室里。

另请参阅：

https://github.com/matplotlib/matplotlib/issues/5420 https://github.com/bempp/bempp/issues/260 https://github.com/matplotlib/matplotlib/issues/5919 https://github.com/pydata/pandas/issues/11608 https://github.com/pydata/pandas/issues/11694

https://github.com/matplotlib/matplotlib/pull/5931是一个被提议的解决方案。在下一个mpl版本中，这应该是“修正”的。

如果有人(每个人？)谁拥有mac，谁知道如何向苹果报告bug，这将是一件好事。

Answer 2

根据http://anaconda.org/brian-team/brian2

anaconda的安装是

conda install -c http://conda.anaconda.org/brian-team brian2