Is it possible to create anonymous objects in Python?

Question

I\'m debugging some Python that takes, as input, a list of objects, each with some attributes.

I\'d like to hard-code some test values -- let\'s say, a list of four

Answer 1

Another obvious hack:

class foo1: x=3; y='y'
class foo2: y=5; x=6

print(foo1.x, foo2.y)

But for your exact usecase, calling a function with anonymous objects directly, I don't know any one-liner less verbose than

myfunc(type('', (object,), {'foo': 3},), type('', (object,), {'foo': 4}))

Ugly, does the job, but not really.