patito.Model.valid_dtypes
- property Model.valid_dtypes: dict[str, List[pl.PolarsDataType | pl.List]]
Return a list of polars dtypes which Patito considers valid for each field.
The first item of each list is the default dtype chosen by Patito.
- Returns:
A dictionary mapping each column string name to a list of valid dtypes.
- Raises:
NotImplementedError – If one or more model fields are annotated with types not compatible with polars.
Example
>>> from pprint import pprint >>> import patito as pt
>>> class MyModel(pt.Model): ... bool_column: bool ... str_column: str ... int_column: int ... float_column: float ... >>> pprint(MyModel.valid_dtypes) {'bool_column': [Boolean], 'float_column': [Float64, Float32], 'int_column': [Int64, Int32, Int16, Int8, UInt64, UInt32, UInt16, UInt8], 'str_column': [Utf8]}