test_timedeltas.py 文件源码

def test_conversion(self):

        for td in [Timedelta(10, unit='d'),
                   Timedelta('1 days, 10:11:12.012345')]:
            pydt = td.to_pytimedelta()
            self.assertTrue(td == Timedelta(pydt))
            self.assertEqual(td, pydt)
            self.assertTrue(isinstance(pydt, timedelta) and not isinstance(
                pydt, Timedelta))

            self.assertEqual(td, np.timedelta64(td.value, 'ns'))
            td64 = td.to_timedelta64()
            self.assertEqual(td64, np.timedelta64(td.value, 'ns'))
            self.assertEqual(td, td64)
            self.assertTrue(isinstance(td64, np.timedelta64))

        # this is NOT equal and cannot be roundtriped (because of the nanos)
        td = Timedelta('1 days, 10:11:12.012345678')
        self.assertTrue(td != td.to_pytimedelta())