How to recovery the default "Library/Python/" folder on Mac?

[Harry Wood]

How to recovery the default "Library/Python/"  folder on Mac? 


I delete it by some mistakes..., I have tried the following steps:

    - Step 1. Download and install Python DMG from Python.org .

       Result: There are no Python folders under Library after I installed the Python DMG.

    - Step 2. I tried to use " brew install python " in Terminal.
       Result: $ brew uninstall python 
                     Error: No such keg: 


What should I need to do now? Please give me some specific directions, Thanks.