无法运行python实用程序mac

我从homebrewos x mavericks安装了python，并使用sudo pip install jrnl从pip安装了jrnl，但当我运行上述实用程序时，出现以下错误提示：

> Traceback (most recent call last):   File "/usr/local/bin/jrnl", line
> 5, in <module>
>     from pkg_resources import load_entry_point   File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py",
> line 2603, in <module>
>     working_set.require(__requires__)   File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py",
> line 666, in require
>     needed = self.resolve(parse_requirements(requirements))   File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py",
> line 565, in resolve
>     raise DistributionNotFound(req)  # XXX put more info here
> pkg_resources.DistributionNotFound: python-dateutil>=2.2

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我正在运行Python2.7.5和我的which Python和which pip命令，分别给出/usr/bin/Python和/usr/local/bin/pip作为结果。我的安装有什么问题？

您的自制Python没有链接/usr/bin/Python是苹果的。尝试运行brew链接-覆盖python。不起作用！取消链接和重新链接，但没有相同的问题。找不到解决办法。