Circular import of filterpy itself prevents the use of pip

[lokinou]

pip is refusing to install claiming that setup.py imports the package filterpy via import filterpy which is a circular import of a package that is not yet installed. The only use of importing it is to use filterpy.__version__

In my case I used pip install filterpy, an even made a git clone ... pip install . without sucess

To be honest, the only solution I found was:

• remove the circular import line: import filterpy
• edit the version number line : version="1.4.5", at line 18
• install the package manually, make sure to be at the root of the repo and use pip install .

And then it installed successfully. No idea why i have this weird issue in the first place, here is my version of python though (Python 3.12.10 (tags/v3.12.10:0cc8128, Apr 8 2025, 12:21:36) [MSC v.1943 64 bit (AMD64)] on win32)