Using pip on Windows installed with both python 2.7 and 3.5

You will have to use the absolute path of pip.

E.g: if I installed python 3 to C:\python35, I would use: C:\> python35\Scripts\pip.exe install packagename

Or if you're on linux, use pip3 install packagename

If you don't specify a full path, it will use whichever pip is in your path.

Because usually i change my intepreter to run something(i got 2 diff projects with both 2 and 3), i use these solution:

1. Add path to the environment as usual (of course)
2. Rename ur python.exe , in my case i want to run python 3 using command python3 on my cmd. So i renamed my python.exe in python3.x directory with python3. Itll works with python 2 ofc.
3. Then to use pip in both python, i use this command.

python3 -m pip install 'somepackage'

and to run pip on python2

python -m pip install 'somepackage'

This is may not the best solution out there, but i like this one

** WINDOWS **

ref : https://datascience.com.co/how-to-install-python-2-7-and-3-6-in-windows-10-add-python-path-281e7eae62a