missing dists, sensors attributs nur schreiben wenn wirklich etwas fehlt.

lib/getpositions.py

@@ -810,20 +810,24 @@ def check_file_in_work(work_dir: Path, filename: Path) -> tuple[Path, bool]:
 
 def check_existance(res_mappings: dict, res_dist: dict, res_pos: dict, res_tunnel: dict) -> dict:
     ret = dict()
-    ret["missing_distributors"] = list()
-    ret["missing_sensors"] = list()
-    ret["missing_tunnel"] = list()
+
     for dname in res_mappings.keys():
         if dname not in res_dist:
+            if "missing_distributors" not in ret:
+                ret["missing_distributors"] = list()
             ret["missing_distributors"].append(dname)
     for sname, lofsensors in res_mappings.items():
         for s in lofsensors:
             if s not in res_pos:
+                if "missing_sensors" not in ret:
+                    ret["missing_sensors"] = list()
                 ret['missing_sensors'].append(s)
     for tname in res_tunnel.keys():
         if tname == "length": # dict enthält auch die Länge aller Tunnels in einem Key
             continue
         if len(res_tunnel[tname]) < 2 :
+            if "missing_tunnel" not in ret:
+                ret["missing_tunnel"] = list()
             ret["missing_tunnel"].append(tname)
         if len(res_tunnel[tname]) > 2 :
             if "overdefined_tunnel" not in ret: