[PeterT]

Originally Posted by Terisa de morgan

I'm trying to solve the basic issues, I hope to have it working for calibre 8 and calibre 9 in some days.

It looks as if "imp" was deprecated in python 3.12; seeing calibre jumped from 3.11 to 3.14 imp is gone. pip does have zombie-imp (see https://pypi.org/project/zombie-imp/ )

Looks to be some discussion on how to replace it at https://github.com/python/cpython/issues/104212

And finally; the 3.12 release notes has some suggested code. See https://docs.python.org/dev/whatsnew/3.12.html#imp

import importlib.util
import importlib.machinery

def load_source(modname, filename):
    loader = importlib.machinery.SourceFileLoader(modname, filename)
    spec = importlib.util.spec_from_file_location(modname, filename, loader=loader)
    module = importlib.util.module_from_spec(spec)
    # The module is always executed and not cached in sys.modules.
    # Uncomment the following line to cache the module.
    # sys.modules[module.__name__] = module
    loader.exec_module(module)
    return module