Method validate_dataframe

pandas/io/parquet.py:151–153

(df: DataFrame)

class BaseImpl:
    @staticmethod
    def validate_dataframe(df: DataFrame) -> None:
        if not isinstance(df, DataFrame):
            raise ValueError("to_parquet only supports IO with DataFrames")

    def write(self, df: DataFrame, path, compression, **kwargs) -> None:
        raise AbstractMethodError(self)