Is it possible to define a value within a response model that contains at least 2 decimal digits [QUESTION]

Description

Is it possible to define a value within a response model that contains at least 2 decimal digits.?

Additional context

The response model I am talking about looks like this:

class WindData(BaseModel):
    speed: Union[List[float], List[None]] = Schema(
        None,
        title="Wind Speed [m/s]")
    dir: Union[List[float], List[None]] = Schema(
        None,
        title="Wind Direction [°]")
    gust: Union[List[float], List[None]] = Schema(
        None,
        title="Wind Speed [m/s]")

And the values should have maximal 2 decimal digits. I hope you can help me

Thanks a lot !

[dmontagu]

Yeah, there is also another challenge with decimal that pydantic json-encodes it to a float rather than a string (which can come with some float rounding issues if dumped and re-encoded).

[sm-Fifteen]

I should probably mention that Pydantic has had max_digits and decimal_places restrictions for its condecimal type since very early versions (though those barely get a mention in the current documentation), which can be used together to have a constraint similar to NUMERIC(precision, scale) in SQL. There’s no way to require a minimum or exact number of significant figures, though, at least not without a custom validator.