python-sciunit fails to build with pip 20.1.x (with Python 3.9.0b1 and 3.8.3 alike).

+ /usr/bin/python3 setup.py build '--executable=/usr/bin/python3 -s'
Traceback (most recent call last):
  File "/builddir/build/BUILD/sciunit-0.2.2/setup.py", line 48, in <module>
    install_requires=read_requirements(),
  File "/builddir/build/BUILD/sciunit-0.2.2/setup.py", line 28, in read_requirements
    reqs = [str(ir.req) for ir in install_reqs]
  File "/builddir/build/BUILD/sciunit-0.2.2/setup.py", line 28, in <listcomp>
    reqs = [str(ir.req) for ir in install_reqs]
AttributeError: 'ParsedRequirement' object has no attribute 'req'
For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.9/fedora-rawhide-x86_64/01397830-python-sciunit/

sciunit's setup.py uses internal pip API: from pip._internal.req import parse_requirements



For all our attempts to build python-sciunit with Python 3.9, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.9/package/python-sciunit/

Testing and mass rebuild of packages is happening in copr. You can follow these instructions to test locally in mock if your package builds with Python 3.9:
https://copr.fedorainfracloud.org/coprs/g/python/python3.9/

Let us know here if you have any questions.

Python 3.9 will be included in Fedora 33. To make that update smoother, we're building Fedora packages with early pre-releases of Python 3.9.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires), so if this package is required a lot, it's important for us to get it fixed soon.
We'd appreciate help from the people who know this package best, but if you don't want to work on this now, let us know so we can try to work around it on our side.