Method __post_init__

xarray/core/extension_array.py:250–260

(self)

    array: T_ExtensionArray

    def __post_init__(self):
        if not isinstance(self.array, pd.api.extensions.ExtensionArray):
            raise TypeError(f"{self.array} is not a pandas ExtensionArray.")
        # This does not use the UNSUPPORTED_EXTENSION_ARRAY_TYPES whitelist because
        # we do support extension arrays from datetime, for example, that need
        # duck array support internally via this class.  These can appear from `DatetimeIndex`
        # wrapped by `PandasIndex` internally, for example.
        if not is_allowed_extension_array(self.array):
            raise TypeError(
                f"{self.array.dtype!r} should be converted to a numpy array in `xarray` internally."
            )

    def __array_function__(self, func, types, args, kwargs):
        if func not in HANDLED_EXTENSION_ARRAY_FUNCTIONS: