所以我有一个 django 网站，它给了我这个 AmbiguousTimeError。我有一个工作在保存产品时激活，该产品在更新我的搜索索引之前有一个短暂的超时。看起来在夏令时进行了更新，pytz 无法弄清楚如何处理它。
我怎样才能防止这种情况在下一次 DST 小时班次时发生？
[2012-11-06 14:22:52,115: ERROR/MainProcess] Unrecoverable error: AmbiguousTimeError(datetime.datetime(2012, 11, 4, 1, 11, 4, 335637),)
Traceback (most recent call last):
File "/usr/local/lib/python2.6/dist-packages/celery/worker/__init__.py", line 353, in start
component.start()
File "/usr/local/lib/python2.6/dist-packages/celery/worker/consumer.py", line 369, in start
self.consume_messages()
File "/usr/local/lib/python2.6/dist-packages/celery/worker/consumer.py", line 842, in consume_messages
self.connection.drain_events(timeout=10.0)
File "/usr/local/lib/python2.6/dist-packages/kombu/connection.py", line 191, in drain_events
return self.transport.drain_events(self.connection, **kwargs)
File "/usr/local/lib/python2.6/dist-packages/kombu/transport/virtual/__init__.py", line 760, in drain_events
self._callbacks[queue](message)
File "/usr/local/lib/python2.6/dist-packages/kombu/transport/virtual/__init__.py", line 465, in _callback
return callback(message)
File "/usr/local/lib/python2.6/dist-packages/kombu/messaging.py", line 485, in _receive_callback
self.receive(decoded, message)
File "/usr/local/lib/python2.6/dist-packages/kombu/messaging.py", line 457, in receive
[callback(body, message) for callback in callbacks]
File "/usr/local/lib/python2.6/dist-packages/celery/worker/consumer.py", line 560, in receive_message
self.strategies[name](message, body, message.ack_log_error)
File "/usr/local/lib/python2.6/dist-packages/celery/worker/strategy.py", line 25, in task_message_handler
delivery_info=message.delivery_info))
File "/usr/local/lib/python2.6/dist-packages/celery/worker/job.py", line 120, in __init__
self.eta = tz_to_local(maybe_iso8601(eta), self.tzlocal, tz)
File "/usr/local/lib/python2.6/dist-packages/celery/utils/timeutils.py", line 52, in to_local
dt = make_aware(dt, orig or self.utc)
File "/usr/local/lib/python2.6/dist-packages/celery/utils/timeutils.py", line 211, in make_aware
return localize(dt, is_dst=None)
File "/usr/local/lib/python2.6/dist-packages/pytz/tzinfo.py", line 349, in localize
raise AmbiguousTimeError(dt)
AmbiguousTimeError: 2012-11-04 01:11:04.335637
编辑：我用芹菜中的这段代码临时修复了它：
celery/worker/job.py @ 第 120 行
try:
self.eta = tz_to_local(maybe_iso8601(eta), self.tzlocal, tz)
except:
self.eta = None
我不想在 pip 安装的应用程序中进行更改，所以我需要在我的代码中修复我可以解决的问题：
这在我保存我的应用程序时运行：
self.task_cls.apply_async(
args=[action, get_identifier(instance)],
countdown=15
)
我假设我需要以某种方式检测我是否处于模棱两可的时间并调整倒计时。