[#8530] convert deprecated operators

* `<>` was removed and should be replaced by
  `!=` (lib2to3.fixes.fix_ne)
* `\`` was removed and should be replaced by either `repr()` or the
  `%r` format string modifier (lib2to3.fixes.fix_repr followed by
  hand-rolled edition to replace concatenation)

1 files changed, 12 insertions, 0 deletions

diff --git a/doc/python3.rst b/doc/python3.rst
index a0db3381a57..55047f16d4b 100644
--- a/doc/python3.rst
+++ b/doc/python3.rst
@@ -86,3 +86,15 @@ or::
 
 This form was implemented in Python 2.5 and is thus compatible across the
 board.
+
+Removed Operators
+-----------------
+
+.. important::
+
+    * The backtick operator ``\`foo\``` must be converted to an explicit call
+      to the ``repr()`` builtin
+    * The ``<>`` operator must be replaced by ``!=``
+
+These two operators were long recommended against/deprecated in Python 2,
+Python 3 removed them from the language.