'python3' is not recognized as an internal or external command, operable program or batch file

Question

I am using Python 3.5.2 version on Windows 7 and tried using python3 app.py. I am getting this error message:

\'python3\' is not recognized as an         


        

Answer 1

For Python 27

virtualenv -p C:\Python27\python.exe django_concurrent_env

For Pyton36

 virtualenv -p C:\Python36\python.exe django_concurrent_env