Install Python 3 to /usr/bin/ on macOS

Question

I installed python2.x and python3.x using homebrew and the executable python paths are listed below:

$ which python
/Library/Frameworks/Python.framework/Versions         


        

Answer 1

Create a symbolic link in /usr/bin/

Open terminal and do:

$ sudo ln /Library/Frameworks/Python.framework/Versions/2.7/bin/python /usr/bin/python
$ sudo ln /Library/Frameworks/Python.framework/Versions/3.5/bin/python3 /usr/bin/python3

You can now do what you wanted to do.

Edit: Unfortunately as you can read from the other answers, this solution no longer works on MacOS >= El Capitan due to System Integrity Protection. (See here)

A possible alternative is to use the folder /usr/local/bin that should be accessible.