improve mechanism to determine aliases

- meanings from name guessing has sligthly lower importance then
  given meanings
- then temperature meaning is missing, take temperature_regulation

devices.py

@@ -501,7 +501,10 @@ class FrappyConfig(Device):
         depending on their meaning
         """
         nodedevs = filter(None, [session.devices.get(devname) for devname in self.nodes])
+        # value to add to the importance given in meanings targets list
+        add_importance = {k: 10 * i for i, k in enumerate(self.nodes)}
         sample_devices = {}
+        regulationset = set()
         for nodedev in nodedevs:
             secnode = nodedev._secnode
             if not secnode:
@@ -513,6 +516,9 @@ class FrappyConfig(Device):
                 except KeyError:
                     meaning = None
                 if meaning:
+                    head, _, tail = meaning.partition('_')
+                    if tail == 'regulation':
+                        regulationset.add(head)
                     meaning_name, importance = meaning
                     sample_devices.setdefault(meaning_name, []).append((importance, devname))
 
@@ -541,7 +547,15 @@ class FrappyConfig(Device):
                 session.log.warn("neither 'predefined_alias' nor 'alias' configured. skip %s", meaning)
                 continue
             importance_list = sample_devices.get(meaning, [])
-            importance_list.extend([(nr, nam) for nam, nr in aliascfg.items() if nam in session.devices])
+            for devname, nr in aliascfg.items():
+                dev = session.devices.get(devname)
+                if dev:
+                    # increase importance by 10 for stick or 20 for addons, in case the device is
+                    # living on the stick/addons node
+                    nr += add_importance.get(str(getattr(dev, 'secnode', '')), 0)
+                    importance_list.append((nr, devname))
+            if meaning in regulationset:  # take temperature_regulation when temperature is not available
+                importance_list.extend(sample_devices.get(f'{meaning}_regulation', []))
             importance_list = sorted(importance_list, reverse=True)
             session.log.debug('%s: %r', meaning, importance_list)
             for _, devname, in importance_list: