Update release on PyPi

[CrazyLionHeart]

On PyPi stored very old version released on Aug 9, 2018.

Please update package and release new version.

[lakay]

++1

[tomoncle]

Ok, I will record this issue. I will verify the Python3 and prometheus-2.x versions as soon as possible, because of work reasons, can not deal with the issue within 24 hours, thanks for support and understanding.

[lexdene]

++1