Avoid catching ImportErrors when loading plugin URLs

netbox/extras/plugins/urls.py

@@ -1,9 +1,11 @@
+from importlib import import_module
+
 from django.apps import apps
 from django.conf import settings
 from django.conf.urls import include
 from django.contrib.admin.views.decorators import staff_member_required
 from django.urls import path
-from django.utils.module_loading import import_string
+from django.utils.module_loading import import_string, module_has_submodule
 
 from . import views
 
@@ -19,24 +21,21 @@ plugin_admin_patterns = [
 
 # Register base/API URL patterns for each plugin
 for plugin_path in settings.PLUGINS:
+    plugin = import_module(plugin_path)
     plugin_name = plugin_path.split('.')[-1]
     app = apps.get_app_config(plugin_name)
     base_url = getattr(app, 'base_url') or app.label
 
     # Check if the plugin specifies any base URLs
-    try:
+    if module_has_submodule(plugin, 'urls'):
         urlpatterns = import_string(f"{plugin_path}.urls.urlpatterns")
         plugin_patterns.append(
             path(f"{base_url}/", include((urlpatterns, app.label)))
         )
-    except ImportError:
-        pass
 
     # Check if the plugin specifies any API URLs
-    try:
+    if module_has_submodule(plugin, 'api.urls'):
         urlpatterns = import_string(f"{plugin_path}.api.urls.urlpatterns")
         plugin_api_patterns.append(
             path(f"{base_url}/", include((urlpatterns, f"{app.label}-api")))
         )
-    except ImportError:
-        pass