ScopeMismatch error

[jpsnyder]

I am running into an issue where I get a "ScopeMismatch" error if I try to use datafiles to create another fixture with a different scope than "function".

I want the scope to be "module" based because I would like to keep the database open for all tests since loading the database is time consuming.

Here is a simplified example of what I am trying to do:

@pytest.fixture(scope="module")
@pytest.mark.datafiles(TEST_DATA_DIR / "image.png")
def image_db(datafiles):
    """Loads image.png into database and returns database entry"""
   with database():
      database.add(datafiles / "image.png")
      for db_entry in database.query_images():
         yield db_entry
         break

test setup failed
ScopeMismatch: You tried to access the 'function' scoped fixture 'datafiles' with a 'module' scoped request object, involved factories

Any help is a appreciated.