Unfortunately due to some internal politics within neo4j, the py2neo project is now EOL and was deleted from pypi. See this twitter thread.
Is there anyone who might have forked the GitHub repository?
You can see updates here https://community.neo4j.com/t/farewell-py2neo-what-happens-now/64419
Copied from Above link,
And One can see here as well, https://www.reddit.com/r/Neo4j/comments/174jl66/py2neo_no_longer_available/