Respect that playerInput can be none

seopardy.py

@@ -73,6 +73,7 @@ if __name__ == '__main__':
 	# create and start input threads
 	print(config["playerInput"])
 	inputs = []
+	if config["playerInput"] is not None:
 		for playerInput in config["playerInput"]:
 			args = playerInput.get("Args", [])
 			if args is None: