Question: Use more than one alias

Question

For bugs/questions:

• OS: MAC
• Python version 3.6
• Pydantic version 0.14

Is it possible to use more than 1 alias? I have data that can sometime have an attribute like_this and sometimes likeThis and I want to reuse the model

Thanks!

[samuelcolvin]

https://pydantic-docs.helpmanual.io/blog/pydantic-v2/#more-powerful-aliases

It will be possible in V2. It’s already implemented in pydantic-core.

[dlopuch]

Ran across this for use-case of renaming an API field – had to support both old field name and new field name going to same place in order to maintain API stability.

For the web archives, a slight twist on @jmkd3v’s solution for when you have many fields on your model and don’t want to type everything out:

class PartialUser(BaseUser):
    def __init__(self, **data):
        super().__init__(
            id=data.pop("old_id", None) or data.pop("id", None),
            **data,
        )

    id: int
    name: str
    display_name: str