Why is a preexisting output.yaml required?

multi_agent_path_planning/centralized/cbs/cbs.py

Lines 337 to 342 in 9b273bb

    
           # Write to output file 
        
           with open(args.output, 'r') as output_yaml: 
        
               try: 
        
                   output = yaml.load(output_yaml, Loader=yaml.FullLoader) 
        
               except yaml.YAMLError as exc: 
        
                   print(exc)

This code requires that a valid output yaml file already exists. I think it ought to gracefully handle the case that no such file exists.

Thanks for the suggestion. I do agree that it should exit gracefully. Would you like to open a PR for this?

	# Write to output file
	with open(args.output, 'r') as output_yaml:
	try:
	output = yaml.load(output_yaml, Loader=yaml.FullLoader)
	except yaml.YAMLError as exc:
	print(exc)