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> So NaN is a possible result from time.time()?
Oops. I don't know if it is possible. I just know that it cannot return None :-)
_PyTime_gettimeofday() fills a structure having two integer fields (tv_sec, tv_usec), and floattime() uses these fields to compute a double:
static PyObject*
floattime(void)
{
 _PyTime_timeval t;
 _PyTime_gettimeofday(&t);
 return PyFloat_FromDouble((double)t.tv_sec + t.tv_usec * 1e-6);
}
I don't see how "(double)t.tv_sec + t.tv_usec * 1e-6" can generate NaN.