source : The term 'source' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, code example
Example 1: 'source' is not recognized as an internal or external command, operable program or batch file.
env\Scripts\activate
Example 2: 'source' is not recognized as an internal or external command, operable program or batch file.
virtualenv env