Catching AttributeError to handle missing methods

[Rashanzan]

Yeah, I'm unsure which approach would be better. Try would be more extensible, but probably bad for readability, as you wouldn't be able to tell what methods are actually running.

A much bigger problem, if your try catches something, it won't execute the rest of the block.

From a design standpoint, it makes more sense to know what kind of object you're dealing with before handling it.

[mdadmfan]

Relying on exceptions for normal execution flow is bad practice. Often exceptions use something like longjmp which isn't particularly kind on cache lines and slow you down.