[Answer]-Heroku – internal server error

Well, according to your error, it says that the command you inputted was python.manage.py. The correct command is python manage.py(WITHOUT THE DOT BETWEEN PYTHON AND MANAGE.PY).

Now run python manage.py and see if it is running locally, if not then try fixing the errors that it throws when you run it locally because most of the time those are the errors that heroku is throwing as well.