Am 13.03.2018 um 12:16 schrieb Steven D'Aprano: > How do Fractions convert to ints when they have no __int__ method? It uses __trunc__: | In general, the int() conversion should try __int__() first and if | it is not found, try __trunc__().[https://www.python.org/dev/peps/pep-3141/] -- Robin Koch