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我知道有几个问题涉及这个问题，但我很难弄清楚，如果我的问题有一个解决方案。我正在使用 Mac 10.6.8、MacPorts 2.1.3。
在这里，我指的是关于 SO 的一个讨论，我的问题似乎得到了解决。这就是我所做的：

$ sudo port install py-rpy2               # seemed to be fine. A 
$ python -m 'rpy2.tests'                  # gave the output 
usr/bin/python: No module named rpy2 
$ /opt/local/bin/python2.7 -m 'rpy2.tests # results in a 
'Segmentation fault'                      # and MacOS is complaining..

升级所有过时的软件包后

$ sudo port -f uninstall py-rpy2  
$ sudo port -f install py-rpy2
... the same as above.<br>

$ sudo easy_install rpy2

抛出许多错误并以

'error: Setup script exited with error: command 'gcc-4.2' failed with exit status 1'

你可以在这里找到完整的输出。

我只有一个

/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/

路径，2.7没有

/Library/Frameworks/Python.framework/Versions/

入口。

localhost:~$ ls /opt/local/bin/python* 
/opt/local/bin/python2.4       
/opt/local/bin/python3.3 /opt/local/bin/python2.6       
/opt/local/bin/python3.3-config /opt/local/bin/python2.6-config
/opt/local/bin/pythonw2.6 /opt/local/bin/python2.7       
/opt/local/bin/pythonw2.7 /opt/local/bin/python2.7-config
/opt/local/bin/pythonw3.3

$ which python 
'/usr/bin/python'

这是 Python 2.6.1。

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