Question

I’m using heroku and django / vertualenv … I used this boostrap file: https://github.com/mtigas/heroku-django-demo-app/blob/master/tldr.markdown, named my app contest2 but when I try to run foreman locally with foreman start I get:

raise ImportError("Could not import settings '%s' (Is it on sys.path?): %s" % (self.SETTINGS_MODULE, e))
11:10:06 web.1     | ImportError: Could not import settings 'src/contest2/contest2/settings.py' (Is it on sys.path?): Import by filename is not supported.

From the dir the procfile is in, this path: src/contest2/contest2/settings.py is correct.

My procfile looks like this:

web: gunicorn_django -b 0.0.0.0:$PORT -w 9 -k gevent --max-requests 250 --preload src/$PYTHON_APP_NAME/$PYTHON_APP_NAME/settings.py > Procfile 

Thanks for your help in advance.

Answer 1

Your src/contest2/contest2/settings.py is fed to the __import__ function.

You can try to simulate the error:

>>> __import__('path/module.py')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: Import by filename is not supported.
>>>

You probably want to change that to have the python module name and not the path.

The easier way would be to make sure that src/$PYTHON_APP_NAME/$PYTHON_APP_NAME/ is on your path, and just use settings as module name.

You might want to have a look at the source of the gunicorn_djangocommand to figure out how this works: