mkdir ~/venvs
python3.6 -m venv ~/venvs/pypi_upload
~/venvs/pypi_upload/bin/pip install --upgrade pip setuptools twine wheel

cd xar
rm -r dist

~/venvs/pypi_upload/bin/python setup.py sdist
~/venvs/pypi_upload/bin/python setup.py bdist_wheel

~/venvs/pypi_upload/bin/twine upload dist/xar-18.7.12-py2.py3-none-any.whl
~/venvs/pypi_upload/bin/twine upload dist/xar-18.7.12.tar.gz