root/pypi: links for project-extension

root/pypi project_extension-4.2.4.tar.gz
root/pypi project_extension-4.2.4-py3-none-any.whl
root/pypi project_extension-4.2.3.tar.gz
root/pypi project_extension-4.2.3-py3-none-any.whl
root/pypi project_extension-4.2.2.tar.gz
root/pypi project_extension-4.2.2-py3-none-any.whl