Re: 'NoneType' object has no attribute 'datetime' bug?

[Ernesto Guevara]

Try this:

from datetime import datetime, time, date

current_date = datetime.now()

today = datetime.combine(date.today(), time(19,30))

Look:

>>> from datetime import datetime, time, date
>>> print datetime.now()
2012-07-14 14:14:17.897023
>>> print datetime.combine(date.today(),time(19,30))
2012-07-14 19:30:00
>>>

o/

2012/7/14 dobrysmak <lukasz.s...@gmail.com>

Hi guys,

i have run into this.

Traceback:

File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response

111. response = callback(request, *callback_args, **callback_kwargs)

File "/usr/local/lib/python2.7/dist-packages/django/contrib/auth/decorators.py" in _wrapped_view

20. return view_func(request, *args, **kwargs)

File "/usr/local/lib/python2.7/dist-packages/django/utils/decorators.py" in _wrapped_view

91. response = view_func(request, *args, **kwargs)

File "/home/user/dev/xyz/coupon/views.py" in enter_game

69. Coupon(coupon=coupon, player=player, credicts=credicts).save()

File "/home/user/dev/xyz/coupon/models.py" in save

253. self.coupon.close_coupon()

File "/home/user/dev/xyz/coupon/models.py" in close_coupon

78. current_date = datetime.datetime.now()

Exception Type: AttributeError at /wejdz-do-gry/49/

Exception Value: 'NoneType' object has no attribute 'datetime'

Request information:

GET: No GET data

and the cuntion "close_coupon" looks like this

class Coupon(models.Model): .

.

. end_date = models.DateTimeField(default=None, null=True, blank=True)

def close_coupon(self):

current_date = datetime.datetime.now() today = datetime.datetime.combine(datetime.date.today(), datetime.time(19,30))

.

  .

end_date = current_date

Don't know if that's a bug. Does anyone know how to deal with this issue?

Cheers!

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[dobrysmak]

Thank's for help , i did this and now i've got this 

AttributeError at /wejdz-do-gry/76/

'NoneType' object has no attribute 'now'

This is strange because the shell import works fine but the server script throus an exception.

>>> from datetime import datetime, time, date
>>> print datetime.now()
2012-07-14 14:14:17.897023
>>> print datetime.combine(date.today(),time(19,30))
2012-07-14 19:30:00
>>> 

Ok, that's true but the script does not even reach the 'combine' function it died on 'now'. 

 

2012/7/14 dobrysmak <lukasz.s...@gmail.com>

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[tWoolie]

somehow, your global datetime variable is being clobbered with the value None. Find where that happens, and your bug will disappear.

[Melvyn Sopacua]

On 14-7-2012 14:01, dobrysmak wrote:

> def close_coupon(self):
> current_date = datetime.datetime.now() today =
> datetime.datetime.combine(datetime.date.today(), datetime.time(19,30))
> .
> .
> end_date = current_date

This function is stripped down I suppose, because it does nothing useful:
- it changes a few local variables (not values of the model)
- today is unused
- end_date is set to current_date which seems odd.

My guess is that you want the end_date set to half past seven of the
current_date:

def close_coupon(self) :
from django.utils import timezone
current_date = timezone.now()
end_date = current_date.replace(hour=19, minutes=30)
self.current_date = current_date
self.end_date = end_date

--
Melvyn Sopacua

[Masklinn]

On 2012-07-16, at 10:21 , dobrysmak wrote:

> Thank's for help , i did this and now i've got this
>
> AttributeError at /wejdz-do-gry/76/
> 'NoneType' object has no attribute 'now'
>
> This is strange because the shell import works fine but the server script
> throus an exception.

Sounds like you have a parameter called "datetime" or you create a
variable called "datetime" somewhere, which clobbers the module.

Check the rest of the file, you surely have a line along the lines of
`datetime = None` somewhere.

[Peter of the Norse]

I had a similar problem in one of my views. It looked like:

from X import y

def my_func():
foo = y.baz()
...
y = foo + bar;

Since I was assigning to y later in the function, “y” represented a local variable throughout the function. Somewhere you have “datetime =”, but it might be later in the method.

> def close_coupon(self):
>
> current_date = datetime.datetime.now()
> today = datetime.datetime.combine(datetime.date.today(), datetime.time(19,30))
>
> .
> .
> end_date = current_date
>

> Don't know if that's a bug. Does anyone know how to deal with this issue?
> Cheers!

Peter of the Norse
Rahm...@Radio1190.org