import_submodules.py

def import_submodules(package) -> None:
    package = importlib.import_module(package)
    for _, name, is_pkg in pkgutil.iter_modules(package.__path__):
        full_name = package.__name__ + '.' + name
        if is_pkg:
            import_submodules(full_name)
        else:
            importlib.import_module(full_name)


import_submodules(__package__)