index/pypi: links for 6x

index/pypi 6x-0.0.1.dev2.tar.gz
index/pypi 6x-0.0.1.dev2-py3-none-any.whl
index/pypi 6x-0.0.1.dev1.tar.gz
index/pypi 6x-0.0.1.dev1-py3-none-any.whl