ZeroNet is amazing. It's decentralized and distributed, and it has a builtin blog engine (ZeroBlog), discussion board (ZeroTalk), private messaging (ZeroMail) and a social network (ZeroMe), among other things. It runs on Python 2 almost out of the box (a few extra modules are required).

Official website: https://zeronet.io/

Github repository: https://github.com/HelloZeroNet/ZeroNet