pub_date is invalid in Django tutorial error
Question: 
    C:\mysite>python manage.py shell
    Python 2.7.3 (default, Apr 10 2012, 23:31:26) [MSC v.1500 32 bit (Intel)] on win32
    Type "help", "copyright", "credits" or "license" for more information.
    (InteractiveConsole)
    >>> from polls.models import Poll,Choice
    >>> Poll.objects.all()
    []
    >>> import django
    >>> from django.utils import timezone
    >>> p= Poll(question="what's new?",pub_date= timezone.now())
    Traceback (most recent call last):
      File "<console>", line 1, in <module>
      File "C:\Python27\lib\site-packages\django\db\models\base.py", line 367, in __init__
        raise TypeError("'%s'is an invalid keyword argument for
                              this function"%kwargs.keys()   [0])
    TypeError: 'pub_date' is an invalid keyword argument for this function
    


Answer: Check your models.py probably you mistyped the pub_date Datetime field

