On Fri, 3 Mar 2023 at 20:44, Alan Gauld <learn2prog...@gmail.com> wrote: > > On 02/03/2023 20:54, Ian Pilcher wrote: > > Seems like an FAQ, and I've found a few things on StackOverflow that > > discuss the technical differences in edge cases, but I haven't found > > anything that talks about which form is considered to be more Pythonic > > in those situations where there's no functional difference. > > I think avoiding dunder methods is generally considered more Pythonic. > > But in this specific case using isinstance() is almost always > the better option. Testing for a specific class is likely to break > down in the face of subclasses. And in Python testing for static types > should rarely be necessary since Python uses duck typing > and limiting things to a hard type seriously restricts your code. >
Using isinstance is very different from querying the type of an object though. They're used for different purposes. And obj.__class__ and type(obj) are different too, which is why the OP specifically narrowed this down to the situations where you know they're the same. Personally, I'd probably use type(obj) if the distinction doesn't matter, but that's nothing more than personal preference. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
