SEA: do not override write_target method

else it will not wait for is_running

+ fix in playground

frappy_psi/sea.py

@@ -213,7 +213,10 @@ class SeaClient(ProxyClient, Module):
             if not self._connected.is_set():
                 if self._connect_thread is None:
                     # let doPoll do the reconnect
-                    self.pollInfo.trigger(True)
+                    if self.pollInfo:  # is None in playground
+                        self.pollInfo.trigger(True)
+                    else:
+                        self.log.info('sea_main.doPoll() will connect')
                 raise ConnectionClosed('disconnected - reconnect is tried later')
             return self.raw_request(command, quiet)
 
@@ -677,7 +680,7 @@ class SeaModule(Module):
             if key != 'status' and key is not None:
                 attributes['read_' + key] = rfunc
 
-            if not readonly:
+            if not readonly and key:
 
                 def wfunc(self, value, datatype=datatype, command=paramdesc['cmd']):
                     value = datatype.export_value(value)