Open Stack

Hi, guys:
     I find a non-coincidence definition in Oslo, 


     oslo_utils.timeutils.utcnow is defined like this:
         def utcnow(with_timezone=False):


    oslo_versonedobjects.fields.DateTimeField is defined like this
class DateTimeField(AutoTypedField): def __init__(self, tzinfo_aware=True, **kwargs):


    a = utcnow()
    class ABC(VersionedObject):
        fields = {
            created_at = fields.DateTimeField()
        }
    b = ABC(), and fill it by db record.


    If I compare a and b.created_at,  it will raise an exception like this:
       'TypeError: can't compare offset-naive and offset-aware datetimes'
    because a's value is like this:
        datetime.datetime(2017, 3, 7, 2, 34, 50, 859002)
    b.created_at 's value is like this:
         datetime.datetime(2017, 3, 7, 2, 35, 27, 400786, tzinfo=<iso8601.Utc>)


   Can these two kinds of time's definition be coincident? For example:
       def utcnow(with_timezone=False):


       class DateTimeField(AutoTypedField):
            def __init__(self, tzinfo_aware=False, **kwargs):


best wishes
zeng chen













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