This is what I get:
PS C:\Users\tyler> pip install -U git+https://github.com/Rapptz/discord.py@rewrite
Collecting git+https://github.com/Rapptz/discord.py@rewrite
Cloning https://github.com/Rapptz/discord.py (to revision rewrite) to c:\users\tyler\appdata\local\temp\pip-req-build-91tpp8w6
Running command git clone -q https://github.com/Rapptz/discord.py 'C:\Users\tyler\AppData\Local\Temp\pip-req-build-91tpp8w6'
WARNING: Did not find branch or tag 'rewrite', assuming revision or ref.
Running command git checkout -q rewrite
error: pathspec 'rewrite' did not match any file(s) known to git
ERROR: Command "git checkout -q rewrite" failed with error code 1 in C:\Users\tyler\AppData\Local\Temp\pip-req-build-91tpp8w6
This is what I get: PS C:\Users\tyler> pip install -U git+https://github.com/Rapptz/discord.py@rewrite Collecting git+https://github.com/Rapptz/discord.py@rewrite Cloning https://github.com/Rapptz/discord.py (to revision rewrite) to c:\users\tyler\appdata\local\temp\pip-req-build-91tpp8w6 Running command git clone -q https://github.com/Rapptz/discord.py 'C:\Users\tyler\AppData\Local\Temp\pip-req-build-91tpp8w6' WARNING: Did not find branch or tag 'rewrite', assuming revision or ref. Running command git checkout -q rewrite error: pathspec 'rewrite' did not match any file(s) known to git ERROR: Command "git checkout -q rewrite" failed with error code 1 in C:\Users\tyler\AppData\Local\Temp\pip-req-build-91tpp8w6