Issue #1717, continued: remove PyObject_Compare and Py_CmpToRich declarations
from object.h; don't inherit tp_compare slot on subclasses; and raise TypeError
when initializing a type that has a nonzero tp_compare slot. Fix up
comparison-related comments in object.c and code.h.
diff --git a/Misc/NEWS b/Misc/NEWS
index bcc444a..dca530c 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,9 +12,11 @@
Core and Builtins
-----------------
-- Issue #1717: Remove builtin cmp() function, C-API functions
- PyObject_Cmp and PyObject_Compare, and the support function
- Py_CmpToRich.
+- Issue #1717: Removed builtin cmp() function, dropped tp_compare
+ slot, the C API functions PyObject_Compare and PyUnicode_Compare and
+ the type definition cmpfunc. The tp_compare slot is reserved for
+ future usage. An attempt to initialize a type with a nonzero
+ tp_compare slot will raise TypeError.
- Issue #4707: round(x, n) now returns an integer if x is an integer.
Previously it returned a float.