For pandas, would anyone know, if any datatype apart from (i) float64, int64 (and other variants of np.number like float32, int8 etc.) (ii) bool (iii) datetime64, timedelta64 such as string columns, always have a dtype of object ? Alternatively, I want to know, if there are any datatype apart from (i), (ii) and (iii) in the list above that pandas does not make it's dtype an object? Continue reading...