Mutual exclusion?

[tombohub]

Hello,
does library support mutual exclusion?
https://docs.python.org/3/library/argparse.html#mutual-exclusion

[drewburlingame]

Not declaratively, but we do support DataAnnotations validations and you can use an IArgumentModel that implements IValidatableObject to implement it, as shown in this example

[tombohub]

Ok, thank you

[drewburlingame]

@tombohub no problem. I'm curious if this meets your need? When I thought about adding mutual exclusivity, I realized personally that I preferred the flexibility provided by IValidatableObject to give a more descriptive error message and having exceptional cases where options can be mutually exclusive depending on another option. I recognize that may not be everyone's experience. I'm curious what your opinion is.

[tombohub]

Hi, for me personally I prefer to have quick way to mutually exclude since I'm hobby developer making tools for my personal needs. I'm not sure what would I prefer if it's more than that. In this case I'll probably do a quick validation cause I'm using method style. Do I need to use class style to use to use IValidatableObject?

[drewburlingame]

The command is still defined as a method. The parameters would need to be in an IArgumentModel, as shown in the example. That argument model class becomes a parameter on the method.