Re: Making functions callable

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 <johnd@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 <lifesillusion@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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