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Issue #27834: Avoid overflow error in ZoneInfo.invert().

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This commit is contained in:
Alexander Belopolsky 2016-08-23 14:44:51 -04:00
parent c019bd3033
commit 7c7c14696b
1 changed files with 3 additions and 3 deletions
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6
Lib/test/datetimetester.py
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@ -4477,11 +4477,11 @@ class ZoneInfo(tzinfo):
@staticmethod
def invert(ut, ti):
lt = (ut.__copy__(), ut.__copy__())
lt = (array('q', ut), array('q', ut))
if ut:
offset = ti[0][0] // SEC
lt[0][0] = max(-2**31, lt[0][0] + offset)
lt[1][0] = max(-2**31, lt[1][0] + offset)
lt[0][0] += offset
lt[1][0] += offset
for i in range(1, len(ut)):
lt[0][i] += ti[i-1][0] // SEC
lt[1][i] += ti[i][0] // SEC