IPython Notebook语言环境错误

Question

安装最新的Mac OSX 64位Anaconda Python发行版后,我在尝试启动IPython Notebook时不断收到ValueError.

启动ipython工作正常:

3-millerc-~:ipython
Python 2.7.3 |Anaconda 1.4.0 (x86_64)| (default, Feb 25 2013, 18:45:56) 
Type "copyright", "credits" or "license" for more information.

IPython 0.13.1 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.

但是启动ipython笔记本:

4-millerc-~:ipython notebook

ValueError中的结果(带回溯):

Traceback (most recent call last):
  File "/Users/millerc/anaconda/bin/ipython", line 7, in <module>
    launch_new_instance()
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/IPython/frontend/terminal/ipapp.py", line 388, in launch_new_instance
    app.initialize()
  File "<string>", line 2, in initialize
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/IPython/config/application.py", line 84, in catch_config_error
    return method(app, *args, **kwargs)
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/IPython/frontend/terminal/ipapp.py", line 313, in initialize
    super(TerminalIPythonApp, self).initialize(argv)
  File "<string>", line 2, in initialize
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/IPython/config/application.py", line 84, in catch_config_error
    return method(app, *args, **kwargs)
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/IPython/core/application.py", line 325, in initialize
    self.parse_command_line(argv)
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/IPython/frontend/terminal/ipapp.py", line 308, in parse_command_line
    return super(TerminalIPythonApp, self).parse_command_line(argv)
  File "<string>", line 2, in parse_command_line
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/IPython/config/application.py", line 84, in catch_config_error
    return method(app, *args, **kwargs)
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/IPython/config/application.py", line 420, in parse_command_line
    return self.initialize_subcommand(subc, subargv)
  File "<string>", line 2, in initialize_subcommand
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/IPython/config/application.py", line 84, in catch_config_error
    return method(app, *args, **kwargs)
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/IPython/config/application.py", line 352, in initialize_subcommand
    subapp = import_item(subapp)
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/IPython/utils/importstring.py", line 40, in import_item
    module = __import__(package,fromlist=[obj])
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/IPython/frontend/html/notebook/notebookapp.py", line 46, in <module>
    from .handlers import (LoginHandler, LogoutHandler,
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/IPython/frontend/html/notebook/handlers.py", line 36, in <module>
    from docutils.core import publish_string
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/docutils/core.py", line 20, in <module>
    from docutils import frontend, io, utils, readers, writers
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/docutils/frontend.py", line 41, in <module>
    import docutils.utils
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/docutils/utils/__init__.py", line 20, in <module>
    from docutils.io import FileOutput
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/docutils/io.py", line 18, in <module>
    from docutils.utils.error_reporting import locale_encoding, ErrorString, ErrorOutput
  File "/Users/millerc/anaconda/lib/python2.7/site-packages/docutils/utils/error_reporting.py", line 47, in <module>
    locale_encoding = locale.getlocale()[1] or locale.getdefaultlocale()[1]
  File "/Users/millerc/anaconda/lib/python2.7/locale.py", line 503, in getdefaultlocale
    return _parse_localename(localename)
  File "/Users/millerc/anaconda/lib/python2.7/locale.py", line 435, in _parse_localename
    raise ValueError, 'unknown locale: %s' % localename
ValueError: unknown locale: UTF-8

locale从终端运行命令:

5-millerc-~:locale 
LANG=
LC_COLLATE="C"
LC_CTYPE="UTF-8"
LC_MESSAGES="C"
LC_MONETARY="C"
LC_NUMERIC="C"
LC_TIME="C"
LC_ALL=

Answer 1

我在这里总结了解决方案:http://blog.lobraun.de/2009/04/11/mercurial-on-mac-os-x-valueerror-unknown-locale-utf-8/

我将这些行添加到我的.bash_profile:

export LC_ALL=en_US.UTF-8
export LANG=en_US.UTF-8

我重新加载了个人资料:

source ~/.bash_profile

然后我又跑了ipython一次:

ipython notebook

更改区域设置

以上内容适用于美国语言环境中的英语.人们可能想要不同的设置.

冒着说明问题的风险,要发现系统的当前设置,请使用:

$ locale

并检索系统上所有有效设置的列表:

$ locale -a

然后选择您喜欢的语言环境.例如,对于瑞士法语区域设置,解决方案如下所示:

export LC_ALL=fr_CH.UTF-8
export LANG=fr_CH.UTF-8

Answer 2

这是OS X终端应用程序中的一个错误,它只出现在某些区域设置(国家/语言组合)中.在/ Applications/Utilities中打开终端并取消选中"在启动时设置区域设置环境变量"框.

这会将您的LANG环境变量设置为空.这可能会导致终端使用您的语言环境的错误设置.终端中的locale命令将告诉您使用了哪些设置.要使用正确的语言,请在bash配置文件中添加一行(通常~/.profile)

export LANG=your-lang

替换your-lang为您的语言的正确语言环境说明符.该命令locale -a将显示所有说明符.例如,美国英语的语言代码是en_US.UTF-8.语言环境会影响可用的翻译,以及日期,货币和小数的格式.

请注意,此图片和内容来自http://conda.pydata.org/docs/troubleshooting.html#unknown-locale(我也是该页面的原作者).

Answer 3

在iTerm进入菜单

Preferences -> Profiles -> Terminal -> (Environment) 

然后取消选中

"Set locale variables automatically"

使这个错误消失了.