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Después de instalar la última Mac OSX 64-bit Anaconda Python distribución, Sigo obteniendo un ValueError cuando intento iniciar IPython Notebook.

Iniciar ipython funciona bien:

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.

Pero comenzando el cuaderno de ipython:

4-millerc-~:ipython notebook

Resultados en ValueError (con rastreo):

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

Ejecutando ellocale comando desde la terminal:

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=