SimpleHTTPServer with support for Range requests
Quickstart:
$ pip install rangehttpserver
$ python -m rangehttpserver
Serving HTTP on 0.0.0.0 port 8000 ...
If you've found this, you may also be intersted in node's http-server, which also includes support for Range requests.
To release a new version:
pip install --upgrade wheel setuptools twine
python setup.py sdist bdist_wheel
twine upload dist/*