ModuleNotFoundError: No module named 'marshmallow.compat'

[hadware]

This is the error I got from running the code example on the Readme. I tried running the tests using pytest, and I got the same error. From other repo's (marshmallow-sqlalchemy) it seems that it's a marshmallow 3.x compatibility issue.

I'm not sure how to fix this myself. Also, please, do something to enable issues on the "official" repo and push them to update the Pypi version to 0.10.