Importing app when using Alembic raises ImportError

alembic just tries to load your env.py source code. It's not in your package, so it can't access your app module.

Use solution 2 @tomasz-jakub-rup suggested, you can execute like

$ PYTHONPATH=. alembic upgrade head

and you should get your result.

python import flask alembic

I guess you are trying to run

python env.py

In this case, your app directory is not in PYTHONPATH.

solution 1

Run the app from parent dir:

python alembic/env.py

Set the PYTHONPATH before running the app

PYTHONPATH=/path/to/parent/dir python env.py

I read about alembic. As @mrorno said, just set the PYTHONPATH before running alembic:

PYTHONPATH=. alembic upgrade head

python import flask alembic

Create file .env and insert PYTHONPATH=.