Re: DateTimeField arithmetic problem

On Fri, Dec 4, 2009 at 4:48 AM, Max Battcher <me@worldmaker.net> wrote:
> Continuation wrote:
>> if form.is_valid():
>>     object = form.save(commit=False)
>>     delta = datetime.timedelta(days=object.days_difference)
>>     object.end = object.start + delta
>>     object.save()
>>
>> But I got the error:
>> type object 'datetime.datetime' has no attribute 'timedelta'
>
> This sounds like a silly import error... It sounds like you've got
> something like:
>
> from datetime import datetime
>
> Where you really want just:
>
> import datetime

Or, to possibly reduce other code changes:

from datetime import datetime, timedelta

...

delta = timedelta(object.days_difference) # Days is the first
positional argument, can also be float.

>
> (Because datetime.datetime.timedelta doesn't exist, but
> datetime.timedelta does.)
>
> --
> --Max Battcher--
> http://worldmaker.net
>
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