let say i have
class Blah:
def __init__(self):
self.foo = ...
self.bar = ...
foo and bar does NOT implement getattr. And they dont have attr "abc" and "xyz"
Is it possible to trick it to do
b = Blah()
x = b.foo.abc
y = b.bar.xyz
OR
x = b.abc.foo
y = b.xyz.bar
foo and bar may not even exists i.e. sort of virtual
No, it's not possible. When you do
x = b.foo.abc
it's essentially equivalent to
temp = b.foo
x = temp.abc
When you're using .abc, there's no reference to the Blah instance any more, you're just getting it from whatever value was stored in the foo attribute. So if that value doesn't have an abc attribute or __getattr__ method, you'll get an error.
There's no way for Blah to intercept the access to the next level below its attributes.