如何删除除OSX自带版本之外的所有其他python版本

Question

在问这个问题之前，我尝试了很多方法。我主要关注这些帖子

How to find all python installations on mac os x and uninstall all but the native OS X installation

How to clean iPython environment so I can start over with Jupyter and Python 3.x?

我也试过了

conda install anaconda-clean
anaconda-clean --yes
rm -rf ~/anaconda3

brew cleanup python3

但我还有很多python版本

GZs-MacBook-Pro:bin gz$ which python
/usr/bin/python
GZs-MacBook-Pro:bin gz$ which python3
/usr/bin/python3
GZs-MacBook-Pro:bin gz$ ls /System/Library/Frameworks/Python.framework/Versions
2.3 2.5 2.6 2.7 Current
GZs-MacBook-Pro:bin gz$ ls /Library/Frameworks/Python.framework/Versions
ls: /Library/Frameworks/Python.framework/Versions: No such file or directory
GZs-MacBook-Pro:bin gz$ ls -l /usr/bin/python*
lrwxr-xr-x  1 root  wheel     75  9 Oct 23:42 /usr/bin/python -> ../../System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7
lrwxr-xr-x  1 root  wheel     82  9 Oct 23:42 /usr/bin/python-config -> ../../System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7-config
lrwxr-xr-x  1 root  wheel     75  9 Oct 23:42 /usr/bin/python2 -> ../../System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7
lrwxr-xr-x  1 root  wheel     75  9 Oct 23:42 /usr/bin/python2.7 -> ../../System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7
lrwxr-xr-x  1 root  wheel     82  9 Oct 23:42 /usr/bin/python2.7-config -> ../../System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7-config
-rwxr-xr-x  1 root  wheel  31456  5 Dec 04:32 /usr/bin/python3

除了OSX上的原始版本外，我如何删除其他python版本