Not sure what is going on without seeing the code. But something is None when
it should be a string, as the exception is telling you.
It's often easiest to try out problem code interactively in Python, and zero in
on the problem.
John
On Mar 26, 2014, at 3:53 PM, Anthony <lifesillus...@gmail.com> wrote:
> Thanks John,
>
> I've yet to test it but I read a few people stating to use lambdas
> variables/properties. Is it definitely the case that it will only evaluate
> once?
>
> Either way I've embarked on the mission to make methods return as properties
> and have found @property decorator to fit my needs, the issue was I was
> calling Object.property not ObjectI().property, However I want to apply this
> functionality to all my methods and am using:
>
> __getattribute__
>
> def __getattribute__(self, item):
> super(DateCalc, self).__getattribute__(item)
>
> But I've run into the problem that my __init__ properties don't seem to be
> initialised eg I get
> self._date_actual = datetime.strptime("{Y}-{m}-{d}".format(Y=year, m=month,
> d=day), self._format_global).date() TypeError: must be string, not None
>
> Anyone have an idea about what's going on?
>
>
> On Thu, Mar 27, 2014 at 5:07 AM, John DeRosa <jo...@ipstreet.com> wrote:
> For the default value to work as you expect, do this:
>
> def view(request, year=None):
> if year is None:
> year = today.year()
>
>
> Kwarg defaults are evaluated when the module is interpreted for the first
> time.
>
> John
>
>
> On Mar 26, 2014, at 1:57 PM, Anthony Hawkes <lifesillus...@gmail.com> wrote:
>
>> Hi Guys,
>>
>> I'm running into a problem with django(I guess this would also affect Python
>> in general) where if I create a view eg
>> def view(year=today.year())
>> The year is never re-evaluated until the server is reloaded/restarted
>>
>> I'm trying to figure out how to make a callable method accessible as a
>> property if this is even possible to try and rectify this(not sure if this
>> is even the correct approach). I've had a look at some magic methods but
>> can't figure it out.
>>
>> Basically I want to make eg
>>
>> def year(something):
>> return 'blah'
>>
>> Accessible using object.year as well as object.year()
>>
>> Any pointers/ideas etc?
>>
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> --
> Anthony Hawkes
> E-Mail: lifesillus...@gmail.com
> Ph: 0400 372 260
>
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