disable module reload in background mode

__init__.py

@@ -33,9 +33,10 @@ functions = [
 import bpy
 
 if "bpy" in locals():
-    for name in modules + functions:
-        module = importlib.import_module(name, __name__)
-        importlib.reload(module)
+    if not bpy.app.background:
+        for name in modules + functions:
+            module = importlib.import_module(name, __name__)
+            importlib.reload(module)
 
 def register():
     if bpy.app.background: