Testing how Python implements in-place binary operations on properties

inplace-ops-on-properties.py

class Member(object):

    def __init__(self, value):
        self.value = value

    def __iadd__(self, value):
        print("__iadd__")
        self.value += value
        return self

class Parent(object):
    
    def __init__(self, value):
        self.value = value
        
    def getMember(self):
        print("getMember")
        return Member(self.value)
    
    def setMember(self, member):
        print("setMember")
        self.value = member.value
        
    member = property(getMember, setMember)

if __name__ == "__main__":
    p = Parent(5)
    p.member += 1