[Python] Strange behavior in python resulting in the error: "TypeError: 'xxx' object is not...

Python ver 3.12.3

This line existed (for a long time) in my python code:

files= VGF.chronological_filenames_iter = VGF.chronological_filenames_iter(ti=ti, fname=name_pattern)


The error is the leftmost equal sign, it should have been a colon (type hinting).

However, the code above actually does what it is supposed to and the typing error are not noticed for weeks.

Until this code;

files: VGF.chronological_filenames_iter = VGF.chronological_filenames_iter(ti=ti, fname=another_name_pattern)


... are used in a different python module that is executed after the module which contained the typing error.

Then an exception occurs, pointing to the second code snippet:

TypeError: 'chronological_filenames_iter' object is not callable


yes, I did spend several hours to figure why it crashed...

To be clear; the 'chronological_filenames_iter' class, and the module where it resides (VGF), are both fine. No bugs there.

Can anyone explain this python behavior ?

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