Django settings.py can't import my local module

My Django tree looks like this

git/src├── myproject│  ├── settings.py│  ├── mysharedlib.py│  └── urls.py└── www├── myotherlib.py├── urls.py└── views.py

It works except that in settings.py I have

import mysharedlib

But this raises an exception

ModuleNotFoundError: No module named 'mysharedlib'

Importing myotherlib from views.py raises a similar error.

Why isn't this working?