find hidden python files

[nilamo]

__call__ is a function call. Probably of a class, because a function would have it's name there instead. ie:

class Spam:
    def __call__(self, arg):
        print(f"Spam's instance was called: {arg}")

foo = Spam()
foo("__call__ is called here")

A quick google search shows that xlwings has a _xlmac.py file, but that doesn't mean that's the one you're seeing: https://github.com/ZoomerAnalytics/xlwings

How are you getting these numbers? Are you using an ide? The ide itself, or however your code is being analyzed might be contributing to the numbers.