Setup issue

[fabaff]

setuptools 50.3.1.post0 (/..0.3.1/lib/python3.8/site-packages)
Traceback (most recent call last):
  File "nix_run_setup", line 8, in <module>
    exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\\r\\n', '\\n'), __file__, 'exec'))
  File "setup.py", line 88, in <module>
    setup_requires=SETUP_REQUIRES + (zfg.SETUP_REQUIRES or []),
TypeError: can only concatenate list (not "Requirements") to list