key parameter of cached_method is not correctly propagated

[saraedum]

In the following example, the last line is incorrect:

sage: class Foo:
....:     @cached_method(key=lambda self,y: y+1)
....:     def f(self, y):
....:         return y - 1
sage: class Bar:
....:     f = Foo.f

sage: b = Bar()
sage: b.f(0)
-1
sage: b.f.cache
{((0,), ()): -1}

It appears that I forgot to propagate the key parameter in some places while working on #15657.

Component: misc

Author: Julian Rueth

Branch/Commit: e27e316

Reviewer: Simon King

Issue created by migration from https://trac.sagemath.org/ticket/16337

[saraedum]

Branch: u/saraedum/ticket/16337

[saraedum]

Author: Julian Rueth

[simon-king-jena]

Commit: e27e316

[simon-king-jena]

comment:3

The changes look good to me (and, by the way, I have not been aware that we now have a key parameter for cached methods). So, it will be a positive review, provided that the tests pass (which I am running now).

---

New commits:

e27e316

Propagate key of a @cached_method correctly

[simon-king-jena]

comment:4

Tests pass, hence, positive review as announced!

[simon-king-jena]

Reviewer: Simon King

[vbraun]

Changed branch from u/saraedum/ticket/16337 to e27e316