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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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? >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Django users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> >> To post to this group, send email to [email protected]. >> Visit this group at http://groups.google.com/group/django-users. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/django-users/e7adace8-ffc9-4f77-b970-e73bed5ae8e1%40googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. > > > -- > You received this message because you are subscribed to a topic in the Google > Groups "Django users" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/django-users/gcx1oTBAZlA/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/django-users. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-users/FE30EAD3-E463-4379-B11C-970D86703AC3%40ipstreet.com. > > For more options, visit https://groups.google.com/d/optout. > > > > -- > Anthony Hawkes > E-Mail: [email protected] > Ph: 0400 372 260 > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/django-users. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-users/CABqJoT1rSB4YeHQHiZH_4KNqMuub1THHyuzAvOCjas_Drz94sg%40mail.gmail.com. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/7BECE858-26BB-402C-A5DA-5A613F14FE1F%40ipstreet.com. For more options, visit https://groups.google.com/d/optout.
