cmp_sort_key: reference functools.cmp_to_key()

diff --git a/pym/portage/util/__init__.py b/pym/portage/util/__init__.py
index 32875695b81bc15af41eff89034e6acf400a9970..1736ad6480977771eeee1d8f852d6d0d1597464e 100644 (file)
--- a/pym/portage/util/__init__.py
+++ b/pym/portage/util/__init__.py
@@ -848,6 +848,9 @@ class cmp_sort_key(object):
        list.sort(), making it easier to port code for python-3.0 compatibility.
        It works by generating key objects which use the given cmp function to
        implement their __lt__ method.
+
+       Beginning with Python 2.7 and 3.2, equivalent functionality is provided
+       by functools.cmp_to_key().
        """
        __slots__ = ("_cmp_func",)