Update variable in __init__ if dependency has changed-CodePudding

Having a class like

 class C():
    
    def __init__(self, bits: list):

       self.bits = bits
       self.values = [bit.value for bit in self.bits]

c = C(bits)

If I update c.bits , c.values wont change. How can I achieve that also c.values is updatet?

CodePudding user response：

If values is supposed to be dependant on the value of bits at all times, don't store it as a separate object, instead make a function that will return current values. If you use @property decorator, you can even use it like a normal attribute in the code.

class C():
    def __init__(self, bits: list):
       self.bits = bits
    @property
    def values(self):
       return[bit.value for bit in self.bits]
c = C(bits)
print(c.values)