No module named 'aiohttp' (Python 3.4) : Forums ...
https://www.pythonanywhere.com/forums/topic/232824.06.2019 · Yup, the web app working is the important bit :-) How are you running the .py file on its own? If it's from the editor, the problem will be that the editor doesn't know that that specific file is associated with that virtualenv -- the trick is to use the "Bash console here" button in the pane where the console would appear if you clicked the run button (close any existing console …