'python3' is not recognized as an internal or external command, operable program or batch file
问题 I am using python 3.5.2 version in windows 7 and tried using python3 app.py. I am getting this error message 'python3' is not recognized as an internal or external command, operable program or batch file. any specific cause about why python3 command is not working? I also verified that the PATH is added to environment variables. 回答1: There is no python3.exe file, that is why it fails. Try: py instead. py is just a launcher for python.exe. If you have more than one python versions installed on