expephalon-kumisms/core/modules/navigation.py

import importlib

from django.conf import settings

from core.classes.navigation import NavItem, NavSection, Navigation

navigations = {
    "backend_main": Navigation(),
    "frontend_main": Navigation(),
}

for module in ["core"] + settings.EXPEPHALON_MODULES:
    try:
        mon = importlib.import_module(f"{module}.navigation")
        for name, nav in mon.NAVIGATIONS:
            if name in navigations.keys:
                raise ValueError(f"Error in {module}: Navigation of name {name} already exists!")
            navigations[name] = nav
    except (AttributeError, ModuleNotFoundError):
        continue