append element of list using python -

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• how avoid having class data shared among instances? 7 answers

i want append element single object in list, object appends elements of list.

class a:    list_of_b=[]  class b:    name = ""  list_a = [a() in range(3)] list_b = [b() j in range(7)]  list_b[0] = "1" list_b[1] = "2" list_b[2] = "3"  list_a[2].list_of_b.append(list_b[1]) 

my problem element list_b[1] appends element in list_a not element lista_a[2].

list_of_b class variable, change instance variable

class a:     def __init__(self):         self.list_of_b = []