establish trunk format

examples/pub_sub_example2.py

@@ -4,6 +4,7 @@
 
 import sys
 import time
+
 from pubsub import pub
 
 import meshtastic
@@ -14,15 +15,18 @@ if len(sys.argv) < 2:
     print(f"usage: {sys.argv[0]} host")
     sys.exit(1)
 
-def onReceive(packet, interface): # pylint: disable=unused-argument
+
+def onReceive(packet, interface):  # pylint: disable=unused-argument
     """called when a packet arrives"""
     print(f"Received: {packet}")
 
-def onConnection(interface, topic=pub.AUTO_TOPIC): # pylint: disable=unused-argument
+
+def onConnection(interface, topic=pub.AUTO_TOPIC):  # pylint: disable=unused-argument
     """called when we (re)connect to the radio"""
     # defaults to broadcast, specify a destination ID if you wish
     interface.sendText("hello mesh")
 
+
 pub.subscribe(onReceive, "meshtastic.receive")
 pub.subscribe(onConnection, "meshtastic.connection.established")
 try:
@@ -30,6 +34,6 @@ try:
     while True:
         time.sleep(1000)
     iface.close()
-except(Exception) as ex:
+except Exception as ex:
     print(f"Error: Could not connect to {sys.argv[1]} {ex}")
     sys.exit(1)