Guido van Rossum wrote:

Those are indeed the main reasons for wanting something built-in rather than something that scans a module's namespace -- the idea being that within the scope of the declaration *every* def and lambda gets passed to this hook first (and the hook can pass on anything that doesn't have annotations, for example).

Ah! Ok ... I got it. It sounds like a job for a new builtin __build_funcion__ which is called for the opcode MAKE_FUNCTION. Christian