Running Python File from Command Line with Libraries in venv

Question

I'm using Python 3.6 in Windows and using PyCharm. I have a .py file that is using packages installed on a venv which is in a different folder to the .py file.

I'm trying to run this .py from command line and when I do it gives me a ModuleNotFoundError: No module named '<module>'. The file works fine from PyCharm just not from the command line because the packages are in the venv.

How can I get the file to run without errors from command line and keep the packages in the venv?

Many thanks.

Answer 1

You need to activate the virtual environment by callling the activation script:

<path to your environment>\Scripts\activate.bat

as indicated here. Then you will automatically use all the packages installed in this environment when calling your script. Your pycharm is probably set up to automatically use your virtual evnironment

Answer 2

I Think the easiest way to do that is using shebang, and it works both linux and windows. For windows you just have to add #!.\venv\Scripts\python.exe at the very first line at your .py script file.