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...
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