Hey Tonu, The problem is that in your statement definition, you are not including the self argument. Your definition needs to be something like: def dolt(self): # Do stuff. For more info on the self keyword, see http://docs.python.org/tutorial/classes.html, section 9.3.2.
On 2/6/12, Tonu Mikk <tm...@umn.edu> wrote: > Alan, thanks for explaining about passing objects to classes. This is an > important concept for me to understand. > > I tried running the code, but run into an error that I could not resolve: > > TypeError: doIt() takes no arguments (1 given). > > Tonu > > On Thu, Feb 2, 2012 at 7:09 PM, Alan Gauld <alan.ga...@btinternet.com>wrote: > >> On 02/02/12 17:36, Tonu Mikk wrote: >> >> So far I have searched for info on how to pass variables from one class >>> to another and have been able to create a small two class program >>> (attached). But I seem unable to generalize from here and apply this >>> to the game exercise. What would you suggest for me to try next? >>> >> >> Remember that OOP is about creating objects from classes. >> You can pass an object to another rather than just the >> variables, in fact its preferable! >> >> Also remember that you can create many objects from one class. >> So just because you have one Room class doesn't mean you are >> stuck with one room object. You can have many and each can >> be connected to another. >> >> You can get rooms to describe themselves, you can enter a room. >> You might even be able to create new rooms or destroy existing ones. These >> actions can all be methods of your Room class. >> >> Here is an example somewhat like yours that passes objects: >> >> class Printer: >> def __init__(self,number=0): >> self.value = number >> def sayIt(self): >> print self.value >> >> class MyApp: >> def __init__(self, aPrinter = None): >> if aPrinter == None: # if no object passed create one >> aPrinter = Printer() >> self.obj = aPrinter # assign object >> def doIt() >> self.obj.sayIt() # use object >> >> def test() >> p = Printer(42) >> a1 MyApp() >> a2 = MyApp(p) # pass p object into a2 >> a1.doIt() # prints default value = 0 >> a2.doIt() # prints 42, the value of p >> >> test() >> >> HTH, >> >> -- >> Alan G >> Author of the Learn to Program web site >> http://www.alan-g.me.uk/ >> >> >> ______________________________**_________________ >> Tutor maillist - Tutor@python.org >> To unsubscribe or change subscription options: >> http://mail.python.org/**mailman/listinfo/tutor<http://mail.python.org/mailman/listinfo/tutor> >> > > > > -- > Tonu Mikk > Disability Services, Office for Equity and Diversity > 612 625-3307 > tm...@umn.edu > -- My Blog - Defenestration Coding http://defenestrationcoding.wordpress.com/ _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
