CC-4404: restart airtime-liquidsoap will interrupt the output stream and never resume until restart playout engine

-fixed

python_apps/pypo/pypofetch.py

@@ -85,6 +85,8 @@ class PypoFetch(Thread):
             if command == 'update_schedule':
                 self.schedule_data = m['schedule']
                 self.process_schedule(self.schedule_data)
+            elif command == 'reset_liquidsoap_bootstrap':
+                self.set_bootstrap_variables()
             elif command == 'update_stream_setting':
                 self.logger.info("Updating stream setting...")
                 self.regenerate_liquidsoap_conf(m['setting'])
@@ -173,7 +175,7 @@ class PypoFetch(Thread):
     def set_bootstrap_variables(self):
         self.logger.debug('Getting information needed on bootstrap from Airtime')
         info = self.api_client.get_bootstrap_info()
-        if info == None:
+        if info is None:
             self.logger.error('Unable to get bootstrap info.. Exiting pypo...')
             sys.exit(1)
         else: