Hello Suppose I have a list l_obj of similar objects. Is there any way I can generate a list l_prp of references to a given property of those objects in such a way that, if change the value of one element in l_prp, the corresponding object in l_obj gets its property updated, and vice-versa? Let give an example of what I have in mind.
In [1]: class MyCls(object): ...: def __init__(self,a): ...: self.prp = a ...: In [2]: l_obj = [MyCls(float(i)) for i in range(3)] In [3]: l_prp = [item.prp for item in l_obj] In [4]: for ob in l_obj: ...: print ob.prp, ...: 0.0 1.0 2.0 In [5]: l_prp Out[5]: [0.0, 1.0, 2.0] In [6]: l_prp[1]=5. In [7]: l_obj[1].prp Out[7]: 1.0 As expected, changes in l_prp do not change the properties of the elements in l_obj, neither do changes in l_obj's element's properties change the values in l_prp. Is there a simple way to implement such connections? Thanks, Ze
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