[issue11882] test_imaplib failed on x86 ubuntu

[R. David Murray]

R. David Murray <rdmurray at bitdance.com> added the comment:

Yeah, I looked at the source of calendar.gmtime, and it turns out it ignores the isdst flag, which it also seems should be irrelevant anyway, looking at the test code again.

I tried setting my /etc/localtime to /usr/share/zoneinfo/posix/Asia/Calcutta, which gives me IST/GMT +5:30, but test_imaplib still passes for me on default.

Here is what an interpreter session looks like for me with my timezone set to IST:

>>> import calendar
>>> calendar.timegm((2000, 1, 1, 0, 0, 0, -1, -1, -1))
946684800
>>> import imaplib
>>> x = imaplib.Internaldate2tuple(b'25 (INTERNALDATE "01-Jan-2000 00:00:00 +0000")')
>>> x
time.struct_time(tm_year=2000, tm_mon=1, tm_mday=1, tm_hour=5, tm_min=30, tm_sec=0, tm_wday=5, tm_yday=1, tm_isdst=0)
>>> import time
>>> time.mktime(x)
946684800.0

Can you show us what yours looks like?  Comparing the above numbers to
yours, it appears to be your mktime that is giving the anomalous results.

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