Unless you're talking philosophically how classes and closures are actually isomorphic then no, it doesn't. None of the variables in the outer scope are capture

Unless you're talking philosophically how classes and closures are actually isomorphic then no, it doesn't. None of the variables in the outer scope are captured in the class instance. https://github.com/python/cpython/blob/main/Lib/functools.py#L276 https://github.com/python/cpython/blob/main/Lib/functools.py... Here's a simplified version of that code that demonstrates the pattern. class partial: def __init__(self, func, *args, **kwargs): self.func = func self.args = args self.kwargs = kwargs def __call__(self, *args, **kwargs): return self.func(*self.args, *args, **(self.kwargs | kwargs)) p = partial(add, 5) # -> an instance of partial with self.args = (5,) res = p(4) # -> calls __call__ which merges the args and calls add(5, 4)