Message 77651 - Python tracker
About mktime() -> -1: see the Issue1726687 (I found the fix in this issue). Next job will be to patch datetime.(utc)fromtimestamp() to support (int, int). I tried to write such patch but it's not easy because fromtimestamp() will support: int, long, float, (int, int), (int, long), (long, int) and (long, long). And I don't know if a "long" value can be converted to "time_t".