Alembic: No module named 'app'

With a fresh clone of this project from cookiecutter, alembic does not run:

$ alembic upgrade head
Traceback (most recent call last):
  File "/Users/austin/.virtualenvs/ccfast/bin/alembic", line 8, in <module>
    sys.exit(main())
  File "/Users/austin/.virtualenvs/ccfast/lib/python3.9/site-packages/alembic/config.py", line 581, in main
    CommandLine(prog=prog).main(argv=argv)
  File "/Users/austin/.virtualenvs/ccfast/lib/python3.9/site-packages/alembic/config.py", line 575, in main
    self.run_cmd(cfg, options)
  File "/Users/austin/.virtualenvs/ccfast/lib/python3.9/site-packages/alembic/config.py", line 552, in run_cmd
    fn(
  File "/Users/austin/.virtualenvs/ccfast/lib/python3.9/site-packages/alembic/command.py", line 298, in upgrade
    script.run_env()
  File "/Users/austin/.virtualenvs/ccfast/lib/python3.9/site-packages/alembic/script/base.py", line 489, in run_env
    util.load_python_file(self.dir, "env.py")
  File "/Users/austin/.virtualenvs/ccfast/lib/python3.9/site-packages/alembic/util/pyfiles.py", line 98, in load_python_file
    module = load_module_py(module_id, path)
  File "/Users/austin/.virtualenvs/ccfast/lib/python3.9/site-packages/alembic/util/compat.py", line 184, in load_module_py
    spec.loader.exec_module(module)
  File "<frozen importlib._bootstrap_external>", line 790, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "alembic/env.py", line 23, in <module>
    from app.db.base import Base  # noqa
ModuleNotFoundError: No module named 'app'

Looking at the way the source code is organized, I’m not sure it can work unless PYTHONPATH is modified or the alembic folder is moved. Can anyone shed some light on this?

Issue Analytics

State:
Created 3 years ago
Comments:5 (1 by maintainers)

Top GitHub Comments

1reaction

tiangolocommented, Dec 27, 2020

Thanks for the help here everyone! 👏 🙇

Thanks for reporting back and closing the issue 👍

0reactions

Fingelcommented, Dec 2, 2020

I see, it looks like this project is meant to be developed while being served from within a docker container.

I’ve found that workflow to be more inconvenient than it is worth, and would prefer personally to just work with the source tree directly. I’ll close this since it looks like it was never actually meant to work.

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