is sorting good?

main.py

@@ -110,17 +110,38 @@ def yaml_to_services_list(filepath: str) -> dict|None:
         print(f"appending {servicename}")
         mustbefore = []
         if "depends_on" in ycontent["services"][servicename]:
-            for dependance in ycontent["services"][servicename]["depends_on"]:
-                mustbefore.append(dependance)
+            for dependencie in ycontent["services"][servicename]["depends_on"]:
+                mustbefore.append(dependencie)
 
         serviceslist[servicename] = {"must_before": mustbefore, "must_after": [], "backupdone": False}
 
     # on reparcourt une seconde fois pour définir de quels services ilssont les dépendances
     for service in serviceslist:
         if len(serviceslist[service]["must_before"]):
-            for dependance in serviceslist[service]["must_before"]:
-                if service not in serviceslist[dependance]["must_after"]:
-                    serviceslist[dependance]["must_after"].append(service)
+            for dependencie in serviceslist[service]["must_before"]:
+                if service not in serviceslist[dependencie]["must_after"]:
+                    serviceslist[dependencie]["must_after"].append(service)
+
+    return serviceslist
+
+
+def order_services_by_dependencies(servicesdict: dict) -> list:
+    '''
+    Génère une liste avec les noms de services pour ordonner leurs coupures par dépendances.
+    Les containers étant requis seront placés avant ceux les requérant.
+    :param servicesdict: dict
+    :return: list
+    '''
+    serviceslist = []
+    for service in servicesdict:
+        if len(servicesdict[service]["must_after"]) and len(serviceslist):
+            depindex = len(serviceslist) -1
+            for dependencieof in servicesdict[service]["must_after"]:
+                if dependencieof in serviceslist and serviceslist.index(dependencieof) < depindex:
+                    depindex = serviceslist.index(dependencieof)
+            serviceslist.insert(service, depindex)
+        else:
+            serviceslist.append(service)
 
     return serviceslist
 
@@ -181,4 +202,6 @@ if __name__ == '__main__':
 
     #read_config_file()
 
-    print(json.dumps(yaml_to_services_list(composefile), indent=4))
+    servicesDict = yaml_to_services_list(composefile)
+    servicesList = order_services_by_dependencies(servicesDict)
+    print(servicesList)