Add a link to readline, and mention IPython and bpython.
diff --git a/Doc/tutorial/interactive.rst b/Doc/tutorial/interactive.rst
index 6a439bd..ca0cfaf 100644
--- a/Doc/tutorial/interactive.rst
+++ b/Doc/tutorial/interactive.rst
@@ -6,8 +6,8 @@
Some versions of the Python interpreter support editing of the current input
line and history substitution, similar to facilities found in the Korn shell and
-the GNU Bash shell. This is implemented using the *GNU Readline* library, which
-supports Emacs-style and vi-style editing. This library has its own
+the GNU Bash shell. This is implemented using the `GNU Readline`_ library,
+which supports Emacs-style and vi-style editing. This library has its own
documentation which I won't duplicate here; however, the basics are easily
explained. The interactive editing and history described here are optionally
available in the Unix and Cygwin versions of the interpreter.
@@ -148,8 +148,8 @@
.. _tut-commentary:
-Commentary
-==========
+Alternatives to the Interactive Interpreter
+===========================================
This facility is an enormous step forward compared to earlier versions of the
interpreter; however, some wishes are left: It would be nice if the proper
@@ -158,6 +158,12 @@
symbol table. A command to check (or even suggest) matching parentheses,
quotes, etc., would also be useful.
+One alternative enhanced interactive interpreter that has been around for quite
+some time is `IPython`_, which features tab completion, object exploration and
+advanced history management. It can also be thoroughly customized and embedded
+into other applications. Another similar enhanced interactive environment is
+`bpython`_.
+
.. rubric:: Footnotes
@@ -165,3 +171,7 @@
:envvar:`PYTHONSTARTUP` environment variable when you start an interactive
interpreter.
+
+.. _GNU Readline: http://tiswww.case.edu/php/chet/readline/rltop.html
+.. _IPython: http://ipython.scipy.org/
+.. _bpython: http://www.bpython-interpreter.org/