diff -r 5c7fdd4521be Doc/library/re.rst
--- a/Doc/library/re.rst	Tue Feb 07 08:37:23 2017 +0100
+++ b/Doc/library/re.rst	Wed Feb 08 12:08:32 2017 +0100
@@ -42,6 +42,12 @@
 that don't require you to compile a regex object first, but miss some
 fine-tuning parameters.
 
+.. seealso::
+
+   The third-party `regex <https://pypi.python.org/pypi/regex/>`_
+   module, which has an API mostly compatible with the standard library
+   :mod:`re` module, and offers a more thorough Unicode support.
+
 
 .. _re-syntax: