Which more Pythonic - self.__class__ or type(self)?

[Thomas Passin]

On 3/2/2023 5:53 PM, Greg Ewing via Python-list wrote:
> On 3/03/23 9:54 am, Ian Pilcher wrote:
>> 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.
> 
> In such cases I'd probably go for type(x), because it looks less
> ugly.
> 
> x.__class__ *might* be slightly more efficient, as it avoids a
> global lookup and a function call. But as always, measurement
> would be required to be sure.

Except that we don't know if "efficiency" - whatever that might mean 
here - matters at all.