CODEWITHSUNDEEP
pythonpandas
Michał Zawadzki
Michał Zawadzki

Reputation: 752

StringDtype data type not understood

When converting from an extension type, e.g. pd.Int32Dtype(), I get TypeError: data type not understood. Example:

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

Upvotes: 0

Views: 1279

Answers (1)

Michał Zawadzki
Michał Zawadzki

Reputation: 752

Casting between extension types is not yet supported - see #22384 for general overview and #31204 for StringDtype in particular.

As a workaround, try casting to str first:

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

Upvotes: 1

Related Questions