Help attribute

[napulen]

https://github.com/DDMAL/MEI2Volpiano/blob/b785992972d896d8d63a328b85ebdbca961dc1a7/mei2volpiano.py#L100

The help parameter is intended as a plain English description of what is expected of this parameter. See example in the argparse documentation:

It's not really an error. By the way, argparse will generate error messages and usage messages automatically for you, so you can rely on those features.

Additionally, if the variable has a string, no need to format it, you can refer to it directly in the parameters sent to argparse:

parser.add_argument("mei_files", type=str, nargs="+", help=error)

In short:

• I think calling it error is misleading. This is/should be a description.
• No need to use an f-string here

[kemalkongar]

Argparse section has been redone and error clarified.