I'm using Python3.8 and when I run pip install -r requirements.txt I get:

Building wheels for collected packages: Twisted, PyDispatcher, protego
Building wheel for Twisted (setup.py) ... error
ERROR: Command errored out with exit status 1:
command: /home/john/scrapy-tutorial-starter/venv/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-0xmr8du4/Twisted/setup.py'"'"'; file='"'"'/tmp/pip-install-0xmr8du4/Twisted/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-kt_vveem
cwd: /tmp/pip-install-0xmr8du4/Twisted/
Complete output (7 lines):
WARNING: The wheel package is not available.
usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
or: setup.py --help [cmd1 cmd2 ...]
or: setup.py --help-commands
or: setup.py cmd --help

error: invalid command 'bdist_wheel'

ERROR: Failed building wheel for Twisted

Have you any idea how I might fix this?

Thanks for your time

John Burrell