pandera.api.narwhals.types.NarwhalsData¶

class pandera.api.narwhals.types.NarwhalsData(frame: LazyFrame, key: str = '*')[source]¶

Data container for Narwhals-backed validation.

Note: field is named frame (not lazyframe) to distinguish from the Polars PolarsData naming convention.

Create new instance of NarwhalsData(frame, key)

Attributes

`frame`	Alias for field number 0
`key`	Alias for field number 1

Methods