Add attribute alias to attrs.field

[MSAdministrator]

This may have been answered before but looking through the issues I couldn't find exactly what I was looking for.

Basically, I am beginning to use attrs in pyattck and want to ingest the raw JSON properties on my models but also access them using better attribute names.

For example, I have this Actor data model and I would like to access attributes named x_mitre_ (e.g. x_mitre_contributors) as contributors on my object:

@define
class Actor(BaseModel):
    aliases: List = field()
    x_mitre_contributors: List = field(alias='contributors') # < Here's the example
    revoked: bool = field(factory=bool)
    description: AnyStr = field(factory=str)
    x_mitre_modified_by_ref: Id = field(factory=Id) 
    x_mitre_deprecated: bool = field(factory=bool)
    x_mitre_attack_spec_version: SemVersion = field(factory=SemVersion)
    created_by_ref: Id = field(factory=Id)

    country: List = field(factory=list)
    operations: List = field(factory=list)
    attribution_links: List = field(factory=list)
    known_tools: List = field(factory=list)
    targets: List = field(factory=list)
    additional_comments: List = field(factory=list)
    external_description: List = field(factory=list)

    malwares: List = field(factory=list)
    tools: List = field(factory=list)
    techniques: List = field(factory=list)

What do you think ? Any alternative ways I can solve this with how attrs is currently implemented?

Also, I did try the field_transformer but I may be either not using it correctly or it can't be done from my point of view.

Thanks for the help!

[hynek]

That’s #950, no?

[MSAdministrator]

Actually you are correct - not sure why my searching sucks but thanks!

[hynek]

Great, I'm at PyCon but I'll try to review that PR at the sprints (famous last words).