On Fri, Feb 26, 2016 at 4:37 PM, Ian Kelly <ian.g.ke...@gmail.com> wrote: > So I would guess that the difference here is because one > implementation is entirely C, and the other implementation is entirely > Python.
Exactly, the C implementation of siftup is only called internally. So there's no need to export it as a function. Calling the C heappop calls this internal siftup implementation, which uses the _PyList_ITEMS macro to reference the list's internal ob_item array. Thus all of the assignment operations party directly on the array instead of using the abstract API. -- https://mail.python.org/mailman/listinfo/python-list
