Assignement modificator in python

modifier.py

# logic
MOD x = y

x = MOD.__transform__(t"{y}")  # lazy evaluation
x = MOD(y)  # general case

# unpack
MOD1 x, MOD2 y = z
_x, _y = z
x = MOD1(x), MOD2(y)

# for loop
for MOD1 x, MOD2 y in z:
    ...

for x, y in z:
    x = MOD1(x)
    y = MOD2(y)
    ...

# function definition
def foo(MOD x):
    pass

def foo(x):
    x = MOD(x)


# class property definition
class A:
    MOD x

class A:
    def __setattr__(self, name, value):
        if name == "x":
            value = MOD(value)
        super().__setattr__(name, value)