On 2019-04-05 15:13, Serhiy Storchaka wrote:
It is easy to implement a function in C.
Why does it need to be a PyCFunction? You could put an actual method descriptor in the class. In other words, use PyDescr_NewMethod() instead of PyCFunction_New() + PyInstanceMethod_New(). It's probably going to be faster too since the instancemethod adds an unoptimized extra level of indirection.
Yes, this is what I want to do. I did not do this only because implementing method-like functions which which do not belong to concrete class implemented in C is not convention.
Sure, you could implement separate methods like __gt__ in C, but that's still less efficient than just implementing a specific tp_richcompare for total_ordering and then having the usual wrapper descriptors for __gt__.
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