diff --git a/Doc/library/locale.rst b/Doc/library/locale.rst
index 381107e..da3a843 100644
--- a/Doc/library/locale.rst
+++ b/Doc/library/locale.rst
@@ -225,12 +225,11 @@
 
 .. function:: strxfrm(string)
 
-   .. index:: builtin: cmp
-
-   Transforms a string to one that can be used for the built-in function
-   :func:`cmp`, and still returns locale-aware results.  This function can be used
-   when the same string is compared repeatedly, e.g. when collating a sequence of
-   strings.
+   Transforms a string to one that can be used in locale-aware
+   comparisons.  For example, ``strxfrm(s1) < strxfrm(s2)`` is
+   equivalent to ``strcoll(s1, s2) < 0``.  This function can be used
+   when the same string is compared repeatedly, e.g. when collating a
+   sequence of strings.
 
 
 .. function:: format(format, val[, grouping[, monetary]])
diff --git a/Doc/library/operator.rst b/Doc/library/operator.rst
index 089c7fa..24ace8b 100644
--- a/Doc/library/operator.rst
+++ b/Doc/library/operator.rst
@@ -43,9 +43,9 @@
    equivalent to ``a < b``, ``le(a, b)`` is equivalent to ``a <= b``, ``eq(a,
    b)`` is equivalent to ``a == b``, ``ne(a, b)`` is equivalent to ``a != b``,
    ``gt(a, b)`` is equivalent to ``a > b`` and ``ge(a, b)`` is equivalent to ``a
-   >= b``.  Note that unlike the built-in :func:`cmp`, these functions can
-   return any value, which may or may not be interpretable as a Boolean value.
-   See :ref:`comparisons` for more information about rich comparisons.
+   >= b``.  Note that these functions can return any value, which may
+   or may not be interpretable as a Boolean value.  See
+   :ref:`comparisons` for more information about rich comparisons.
 
 
 The logical operations are also generally applicable to all objects, and support
diff --git a/Doc/library/unittest.rst b/Doc/library/unittest.rst
index 8c078bc..29a5fd2 100644
--- a/Doc/library/unittest.rst
+++ b/Doc/library/unittest.rst
@@ -327,8 +327,9 @@
 ``WidgetTestCase.testResize``. :class:`TestLoader` uses the ``'test'`` method
 name prefix to identify test methods automatically.
 
-Note that the order in which the various test cases will be run is determined by
-sorting the test function names with the built-in :func:`cmp` function.
+Note that the order in which the various test cases will be run is
+determined by sorting the test function names with respect to the
+built-in ordering for strings.
 
 Often it is desirable to group suites of test cases together, so as to run tests
 for the whole system at once.  This is easy, since :class:`TestSuite` instances
@@ -921,9 +922,13 @@
 .. attribute:: TestLoader.sortTestMethodsUsing
 
    Function to be used to compare method names when sorting them in
-   :meth:`getTestCaseNames` and all the :meth:`loadTestsFrom\*` methods. The
-   default value is the built-in :func:`cmp` function; the attribute can also be
-   set to :const:`None` to disable the sort.
+   :meth:`getTestCaseNames` and all the :meth:`loadTestsFrom\*`
+   methods.  This should be a function that takes two arguments
+   ``self`` and ``other``, and returns ``-1`` if ``self`` precedes
+   ``other`` in the desired ordering, ``1`` if ``other`` precedes
+   ``self``, and ``0`` if ``self`` and ``other`` are equal.  The
+   default ordering is the built-in ordering for strings.  This
+   attribute can also be set to :const:`None` to disable the sort.
 
 
 .. attribute:: TestLoader.suiteClass