dictionary as attribute of a class...

[tinauser]

On Jan 5, 4:34 pm, Peter Otten <__pete... at web.de> wrote:
> tinauser wrote:
> > Hallo list,
> > here again I have a problem whose solution might be very obvious, but
> > I really cannot see it:
> > I have a class having as attribute a dictionary whose keys are names
> > and values are instance of another class.
> > This second class has in turn as an attribute a dictionary.
> > I want a function of the first class that can change value of one of
> > the second class instance's dictionary.
> > however I cannot do it without modifying this attribute for ALL the
> > instance of the second class contained in the first class' dictionary.
> > What I'm doing wrong?
>
> > the code:
>
> > ###############
> > ###can i change a dictionary attribute of an instantated object
> > without affectin all the instances of that object?
>
> > class mistClass():
> >     def __init__(self,name,cDict={}):
>
> When you don't provide a cDict argument the default is used which is the
> same for every instance. Change the above to
>
> def __init__(self, name, cDict=None):
>     if cDict is None:
>         cDict = {}
>
> > class mistClassContainer():
> >     def __init__(self,name,dict_of_mistclass={}):
>
> Same here.
>
> >     def setName(self,n):
> >         self._name=n
>
> >     def getName(self):
> >         return self._name
>
> Python has properties, so you don't need this just-in-case getter/setter
> nonsense.
>
> >         for k,v in zip(listK,listV):
> >             self._cDict[k]=v
>
> Make that
>
> self._cDict.update(zip(listK, listV))
>
> By the way, not everyone loves Hungarian notation...

Thanks both for the reply, I'll take some time to digest so to avoid
further error in the future.Thanks again.