#23714: Django-1.7 doesn't display 500 error pages during DST change
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Reporter: mbertheau | Owner: nobody
Type: Bug | Status: closed
Component: Template system | Version: 1.7
Severity: Normal | Resolution: invalid
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Changes (by tricoder42):
* cc: tomas.ehrlich@… (added)
* status: new => closed
* resolution: => invalid
Comment:
I can't reproduce this bug at all.
The debug page formats `datetime.datetime.now()` with `{{
server_time|date:'r' }}`. Date format `r` is equivalent to `D, j M Y H:i:s
O` as seen in traceback and `O` call `Z` whitch causes the exception. I
tried to simply format datetime from traceback, but I didn't get any
exception:
{{{#!python
from django.conf import settings
settings.configure(USE_TZ=True, TIME_ZONE='Europe/Amsterdam') # required
for DateFormat, doesn't raise exception for USE_TZ=False neither
import datetime
from django.utils.dateformat import DateFormat
try:
DateFormat(datetime.datetime(2014, 10, 26, 2, 30)).format('Z')
DateFormat(datetime.datetime(2014, 10, 26, 2, 30,
tzinfo=None)).format('Z')
except AmiguousTimeError:
pass
else:
print('Exception wasn't raised')
# Exception wasn't raised...
}}}
There seems to be missing information about timezone, which makes
date&time 2014-10-26 2:30 really ambiguous, but even when I try to format
timezone-naive datetime, it never raises exception.
This bug can actually affects debug page only once a year, when the time
is switched back by one hour. So it's after all just 1/4380 of the year ;)
Could you please provide more information? What TIME_ZONE, USE_TZ settings
do you use and etc.
--
Ticket URL: <https://code.djangoproject.com/ticket/23714#comment:4>
Django <https://code.djangoproject.com/>
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