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无法理解 StringDtype 数据类型

[英]StringDtype data type not understood

When converting from an extension type, eg pd.Int32Dtype() , I get TypeError: data type not understood .从扩展类型转换时,例如pd.Int32Dtype() ,我得到TypeError: data type not understood pd.Int32Dtype() Example:例子:

num_col_with_nan = num_col_with_nan.astype(pd.Int32Dtype()).astype("string")

Casting between extension types is not yet supported - see #22384 for general overview and #31204 for StringDtype in particular.尚不支持扩展类型之间的转换 - 请参阅#22384了解一般概述,特别是#31204了解 StringDtype。

As a workaround, try casting to str first:作为解决方法,请先尝试强制转换为 str:

num_col_with_nan = num_col_with_nan.astype(pd.Int32Dtype()).astype(str).astype("string")

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