In the project I am working on, I have a super class with a bunch of default default parameters. Many of the parameters are custom types. Whenever I initialize a subclass, I would expect new instances of custom types to be created for each instance of the subclass, however that doesn't seem to be the case.
I was able to reproduce what I am talking about:
class custom_type:
def __init__(self, x,y):
self.x = x
self.y = y
class super_class:
def __init__(self, j=custom_type(0,0)):
self.j = j
class sub_A(super_class):
def __init__(self):
super().__init__()
class sub_B(super_class):
def __init__(self):
super().__init__()
a = sub_A()
b = sub_B()
a.j.x = 4
print('a:', id(a.j), a.j.x, a.j.y)
print('b:', id(b.j), b.j.x, b.j.y)
output:
a: 139627050161712 4 0
b: 139627050161712 4 0
