class variable: def __init__(self) : self.data = {} self.sub = [] def __getitem__(self,idx) : if idx in self.data : return self.data[idx] else : return def __setitem__(self,idx,value) : self.data[idx] = value def __str__(self) : b=[] b.append(str(self.data)) if len(self.sub)>0 : b.append("(") for i in self.sub : b.append(str(i)) b.append(")") return " ".join(b) def __call__(self,arg) : return self.sub[arg] def __add__(self,other) : self.sub.append(other) return self def test(self) : print(str(self)) v = variable() v[1] = 100 v[2] = 200 t = v v += variable() v(0)[1]=100 v(0)["a"]="aab" t += variable() v(1)[1]=100 t += variable() v(2)[1]=100 print( v[1]) print( v[2]) print( v[3]) print(v) print(v(0)) t = v.test t()
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