Apromixately

This will make your dev folder available from elsewhere so it doesn't actually install to some other path and your changes are available immediately.

Get https://raw.githubusercontent.com/pypa/sampleproject/master/setup.py
Change the name of the module name='sample' to whatever
Empty out the requirement install_requires=[]
touch README.rst
pip3 install --user -e .

pip3 uninstall is a thing!