Rapptz, also known as Danny, the maintainer and core developer of discord.py will no longer be updating it. Here's his Full explanation
Here is a FAQ written by him.
Pycord ("py-cord" on PyPI) is a maintained fork of discord.py which will be updated with new changes to the API. Pycord was created by a group of developers that want to continue developing this Python module.
Pycord v1.7.3 is the same as discord.py v1.7.3. However Pycord v2.0.0 will support interactions and other features introduced in discord.py v2.0.0a as it's a fork of the master branch.
We also have a FAQ channel in our Discord server. You can click here to join.