Add brief section on Reticulated Python, plus stubs for other Pythonic projects.

pep-0482.txt

@@ -18,8 +18,9 @@ This PEP is one of three related to type hinting.  This PEP gives a
 literature overview of related work.
 
 
-Existing Approaches in Other Languages
-======================================
+Existing Approaches for Python
+==============================
+
 
 mypy
 ----
@@ -27,6 +28,27 @@ mypy
 (This section is a stub, since mypy [mypy]_ is essentially what we're
 proposing.)
 
+
+Reticulated Python
+------------------
+
+Reticulated Python [reticulated]_ by Michael Vitousek is an example of
+a slightly different approach to gradual typing for Python. It is
+described in an actual academic paper [reticulated-paper]_ written by
+Vitousek with Jeremy Siek and Jim Baker (the latter of Jython fame).
+
+
+Others
+------
+
+TBD: Add sections on pyflakes [pyflakes]_, pylint [pylint]_, numpy
+[numpy]_, Argument Clinic [argumentclinic]_, pytypedecl [pytypedecl]_,
+numba [numba]_, obiwan [obiwan]_.
+
+
+Existing Approaches in Other Languages
+======================================
+
 ActionScript
 ------------
 
@@ -165,12 +187,15 @@ Example code with types::
 References
 ==========
 
-.. [pep-3107]
-   http://www.python.org/dev/peps/pep-3107/
-
 .. [mypy]
    http://mypy-lang.org
 
+.. [reticulated]
+   https://github.com/mvitousek/reticulated
+
+.. [reticulated-paper]
+   http://wphomes.soic.indiana.edu/jsiek/files/2014/03/retic-python.pdf
+
 .. [obiwan]
    http://pypi.python.org/pypi/obiwan