Is it possibe to copy all of the python modules from one Windows computer to another computer? They are both running the same version of Python 2.7.12. 
The reason for doing so is that I have internet access on one of them, and manual installing modules on the other requires to much time because of dependencies.
In my case, copy-pasting python installation didn't do the job.
You need to check the "C:\Users\\AppData\Roaming\Python*" folder. You may find installed python modules there. Copy and paste these into your source folder will add these modules to your python.
Copy python modules from one system to another