Martin Panter added the comment:
Info when the s390x SLES 3.x buildbot failed
<http://buildbot.python.org/all/builders/s390x%20SLES%203.x/builds/414/steps/test/logs/stdio>:
_TimeRE_cache['Z']='(?P<Z>std|utc|gmt|dst)'
TZ=None, or None via getenv()
_regex_cache={'%Y-%m-%d %H:%M:%S.%f':
re.compile('(?P<Y>\\d\\d\\d\\d)-(?P<m>1[0-2]|0[1-9]|[1-9])-(?P<d>3[0-1]|[1-2]\\d|0[1-9]|[1-9]|
[1-9])\\s+(?P<H>2[0-3]|[0-1]\\d|\\d):(?P<M>[0-5]\\d|\\d):(?P<S>6[0-1]|[0-5]\\d|\\d)\\.(?P<f>[0-9]{1,6})',
re.IGNORECASE), '%Z': re.compile('(?P<Z>std|utc|gmt|dst)', re.IGNORECASE), '%z
%Z': re.compile('(?P<z>[+-]\\d\\d[0-5]\\d)\\s+(?P<Z>std|utc|gmt|dst)',
re.IGNORECASE), '%z': re.compile('(?P<z>[+-]\\d\\d[0-5]\\d)', re.IGNORECASE)}
So it seems _TimeRE_cache has been initialized when time.tzname = ("STD",
"DST"), and this agrees with the contents of _regex_cache. When the tests fail,
there is no TZ environment variable set, but the test is trying to use the time
zone “EST”, which apparently comes from time.tzname[0]. The question in my mind
is why did tzname change from when _strptime was initialized to when the tests
ran?
Keys in _regex_cache, showing what has been parsed since it was cleared:
'%Y-%m-%d %H:%M:%S.%f'
'%Z'
'%z %Z'
'%z'
test_strptime() is inherited by various classes. The first version passed, and
the other five failed:
test_strptime (test.datetimetester.TestDateTime) ... ok
test_strptime (test.datetimetester.TestSubclassDateTime) ... FAIL
test_strptime (test.datetimetester.TestDateTimeTZ) ... FAIL
test_strptime (test.datetimetester.TestDateTime) ... FAIL
test_strptime (test.datetimetester.TestSubclassDateTime) ... FAIL
test_strptime (test.datetimetester.TestDateTimeTZ) ... FAIL
Inbetween the good and the first bad test_strptime() runs, there are the
remaining TestDateTime tests, then the TestDateOnly, TestTZInfo, TestTimeZone,
TestTimeTZ, TestDate, TestTimezoneConversions and TestTime classes, and finally
the initial TestSubclassDateTime tests. Tests appear to be in alphabetical
order by method name within each class, but the classes are in arbitrary order.
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue25168>
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