I keep getting NotImplementedError error when starting django server [duplicate]

Answer 1

Twisted is not supported on 3.8 on Windows, so one solution would be to switch back to Python 3.7.

I got it working on Python 3.8 by replacing the following lines in packages/twisted/internet/asyncioreactor.py

from twisted.internet.interfaces import IReactorFDSet

try:
    from asyncio import get_event_loop
except ImportError:
    raise ImportError("Requires asyncio.")

# As per ImportError above, this module is never imported on python 2, but

with

from twisted.internet.interfaces import IReactorFDSet

import sys

try:
    from asyncio import get_event_loop, set_event_loop_policy, WindowsSelectorEventLoopPolicy
except ImportError:
    raise ImportError("Requires asyncio.")

if sys.platform == 'win32':
    set_event_loop_policy(WindowsSelectorEventLoopPolicy())

# As per ImportError above, this module is never imported on python 2, but

From the similar problem faced by Tornado here.