django - I keep getting "InterfaceError: Error binding parameter 0 - probably unsupported type." -

i trying work way through official django tutorial (https://docs.djangoproject.com/en/1.5/intro/tutorial01/) i'm running problem when trying use shell.

specifically, when try run python manage.py shell error "interfaceerror: error binding parameter 0 - unsupported type."

i don't know means, , code i've written example code given in tutorial:

from django.db import models  class poll(models.model):     question = models.charfield(max_length=200)     pub_date = models.datetimefield('date published')      def __unicode__self():         return self.question  class choice(models.model):     poll = models.foreignkey(poll)     choice_text = models.charfield(max_length=200)     votes = models.integerfield(default=0)      def __unicode__(self):         return choice_text 

i encountered problem "sqlite received naive datetime while time zone support active." used answer post ignore warning , don't think that's what's causing interfaceerror.

i'm running django 1.5 python 2.7 on ubuntu 12.10 , using sqlite3. if has ideas what's going on i'd appreciate help.

i had same problem. make sure have valid time zone in mysite\settings.py file.

i followed link http://www.postgresql.org/docs/8.1/static/datetime-keywords.html#datetime-timezone-set-table given on django tutorial. however, keywords don't work sqlite.

look time zones on http://en.wikipedia.org/wiki/list_of_tz_zones_by_name. me it's america/new_york.