brew安装python,但是:"python-2.7.6已安装,它只是没有链接"

免责声明:noob

OSX 10.8.5

当我在bash中安装python时,我得到了这个警告和错误:

Warning: Could not link python. Unlinking...
Error: The 'brew link' step did not complete successfully
The formula built, but is not symlinked into /usr/local
You can try again using 'brew link python

所以我继续打字

brew link python

得到了

Linking /usr/local/Cellar/python/2.7.6... Warning: Could not link python. Unlinking...

Error: Could not symlink file: /usr/local/Cellar/python/2.7.6/bin/smtpd2.py 
Target /usr/local/bin/smtpd2.py already exists. You may need to delete it. 
To force the link and overwrite all other conflicting files, do:

brew link --overwrite formula_name

我应该这样做吗？在这种情况下链接python是什么意思,更不用说强制链接它了,什么是formula_name？

这个问题很相似,但也有所不同,所以我不敢尝试最受欢迎的答案,因为它可能会让我深入挖掘我现在陷入困境的兔子洞.