[New-bugs-announce] [issue22799] wrong time.timezone

[Akira Li]

New submission from Akira Li:

$ TZ=:Europe/Moscow ./python -mtest -v test_time
  ======================================================================
  FAIL: test_localtime_timezone (test.test_time.TestPytime)
  ----------------------------------------------------------------------
  Traceback (most recent call last):
    File ".../Lib/test/test_time.py", line 721, in test_localtime_timezone
      self.assertEqual(lt.tm_gmtoff, -[time.timezone, time.altzone][lt.tm_isdst])
  AssertionError: 10800 != 14400
  
  ----------------------------------------------------------------------
  Ran 45 tests in 1.832s
  
  FAILED (failures=1, skipped=3)
  test test_time failed
  1 test failed:
      test_time


UTC offset had changed on 2014-10-26 in Europe/Moscow timezone from
MSK+0400 to MSK+0300.

Python time.timezone returns -14400 (old utc offset) despite C timezone
variable having the correct value (Python uses tm_gmtoff from Jan here).

Similar case where timezone, altzone may be wrong
http://bugs.python.org/msg31138

The issue again http://bugs.python.org/issue22798 is that time timezone
attribute is out-of-sync with the corresponding C variable i.e., C
library provides correct values but time module doesn't use them.

----------
components: Library (Lib)
messages: 230684
nosy: akira
priority: normal
severity: normal
status: open
title: wrong time.timezone
type: behavior
versions: Python 3.4, Python 3.5, Python 3.6

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22799>
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