Method _constructor_from_mgr

pandas/core/frame.py:667–682

(self, mgr, axes)

        return DataFrame

    def _constructor_from_mgr(self, mgr, axes) -> DataFrame:
        df = DataFrame._from_mgr(mgr, axes=axes)

        if type(self) is DataFrame:
            # This would also work `if self._constructor is DataFrame`, but
            #  this check is slightly faster, benefiting the most-common case.
            return df

        elif type(self).__name__ == "GeoDataFrame":
            # Shim until geopandas can override their _constructor_from_mgr
            #  bc they have different behavior for Managers than for DataFrames
            return self._constructor(mgr)

        # We assume that the subclass __init__ knows how to handle a
        #  pd.DataFrame object.
        return self._constructor(df)

    _constructor_sliced: Callable[..., Series] = Series