def switch_to_interface(self, interface):
print_error("switching to", interface.server)
self.interface = interface
- self.server_lag = self.blockchain.height - self.heights[self.interface.server]
+ h = self.heights.get(self.interface.server)
+ if h:
+ self.server_lag = self.blockchain.height - h
self.config.set_key('server', self.interface.server, False)
self.send_subscriptions()
self.trigger_callback('connected')