On 28.06.15 08:03, raymond.hettinger wrote:

https://hg.python.org/cpython/rev/637e197be547 changeset: 96697:637e197be547 user: Raymond Hettinger <python@rcn.com> date: Sat Jun 27 22:03:35 2015 -0700 summary: Minor refactoring. Move reference count logic into function that adds entry.

This looks not correct. key should be increfed before calling PyObject_RichCompareBool() for the same reason as startkey.