pip list -v  # Or pip3 list -v 

​

# output example (windows 10):

# Package                   Version   Location                                                         Installer

# ------------------------- --------- ---------------------------------------------------------------- ---------

# adal                      0.4.5     c:\users\test\appdata\roaming\python\python36\site-packages      pip

# aiocache                  0.10.0    c:\program files\python36\lib\site-packages

1. Open start menu and type python

2. Right click on python and select open file location. It will a window in explorer just like below.

3. Again , right click on selected python and select open file location. A window will open and you are now in python’s installation directory.

Python usually stores its library (and thereby your site-packages folder) 

in the installation directory. So, if you had installed Python to 

C:\Python\, the default library would reside in C:\Python\Lib\ 

and third-party modules should be stored in C:\Python\Lib\site-packages.

/usr/local/lib/pythonX.X/dist-packages