Couldn't install depenency "facexlib" because its dependency "fitlerpy" can't install

[Dwedit]

Nunchaku 0.3.1 depends on facexlib. facexlib depends on filterpy. filterpy doesn't install.

I get this:

E:\SwarmUI\dlbackend\comfy\python_embeded>python -m pip install filterpy
Collecting filterpy
  Using cached filterpy-1.4.5.zip (177 kB)
  Preparing metadata (setup.py) ... error
  error: subprocess-exited-with-error

  × python setup.py egg_info did not run successfully.
  ¦ exit code: 1
  ?-> [6 lines of output]
      Traceback (most recent call last):
        File "<string>", line 2, in <module>
        File "<pip-setuptools-caller>", line 35, in <module>
        File "C:\Users\xxxxxxxx\AppData\Local\Temp\pip-install-gqa6ppn2\filterpy_2e4d41befb8a4e9abf284ec28a7e6d59\setup.py", line 4, in <module>
          import filterpy
      ModuleNotFoundError: No module named 'filterpy'
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
?-> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.

Basically it says that the filterpy installer is trying to import the module filterpy, and it's not working, and I have no idea why.

But I was able to manually remove the import filterpy line from the setup.py file that came with filterpy. Then setup.py successfully ran.

Instructions:

• Download the Release version from https://github.com/rlabbe/filterpy
• Extract the files
• Edit the setup.py file:
  • Comment out line 4 import filterpy with the # character
  • Replace the line version=filterpy.__version__, with version="1.4.5",
  • Run python C:\xxxxxxxx\setup.py