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Fix bug: OverflowError: mktime argument out of range #94

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samwellzuk
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The variable use to call is_due->maybe_make_aware->is_navie->utcoffset->_isdst->_time.mktime

, raise a exception on windows: OverflowError: mktime argument out of range

The min timestamp is 1970-1-1, considering timezone, if you are in east+8, 1970-1-1+8 turn into 0,
so the best safe value is 1970-1-2

…t->_isdst->_time.mktime

, raise a exception on windows: OverflowError: mktime argument out of range

The min timestamp is 1970-1-1, considering timezone, if you are in east+8, 1970-1-1+8 turn into 0,
so the best safe value is 1970-1-2
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@sibson sibson left a comment

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Seems reasonable. Could you take a look at the failing tests?

@@ -266,7 +266,7 @@ def is_due(self):
return False, 5.0 # 5 second delay for re-enable.

return self.schedule.is_due(self.last_run_at or
datetime(MINYEAR, 1, 1, tzinfo=self.schedule.tz))
datetime(1970, 1, 2, tzinfo=self.schedule.tz))
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Literal constants always set off alarms in my head but I don't see a good way to eliminate them in this case.

@sibson sibson added the question label Apr 3, 2019
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sibson commented Aug 20, 2019

This has merge conflicts, once resolved I'll re-review.

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