It may be worth investing time in improving these two packages so that python wheels are made available:
To be very specific, it doesn’t look like any file from these libraries is “compiled” (there are no C/C++/fortran/… files)
That said, since there are no wheel for uncertainties package, the conversion from python2 to python3 code seems to happen for every install. See here
If anyone has time to invest to improve these packages, I would be happy to provide guidance and reference example of packages that are successfully packaged.