PEP 511: mention also PyCC by Kevin Conway

pep-0511.txt

@@ -524,11 +524,16 @@ Prior Art
 AST optimizers
 --------------
 
-In 2011, Eugene Toder proposed to rewrite some peephole optimizations in
+The Issue #17515 `"Add sys.setasthook() to allow to use a custom AST"
-a new AST optimizer: issue #11549, `Build-out an AST optimizer, moving
+optimizer <https://bugs.python.org/issue17515>`_ was a first attempt of
-some functionality out of the peephole optimizer
+API for code transformers, but specific to AST.
-<https://bugs.python.org/issue11549>`_.  The patch adds ``ast.Lit`` (it
+
-was proposed to rename it to ``ast.Literal``).
+In 2015, Victor Stinner wrote the `fatoptimizer
+<http://fatoptimizer.readthedocs.org/>`_ project, an AST optimizer
+specializing functions using guards.
+
+In 2014, Kevin Conway created the `PyCC <http://pycc.readthedocs.org/>`_
+optimizer.
 
 In 2012, Victor Stinner wrote the `astoptimizer
 <https://bitbucket.org/haypo/astoptimizer/>`_ project, an AST optimizer
@@ -536,13 +541,11 @@ implementing various optimizations. Most interesting optimizations break
 the Python semantics since no guard is used to disable optimization if
 something changes.
 
-In 2015, Victor Stinner wrote the `fatoptimizer
+In 2011, Eugene Toder proposed to rewrite some peephole optimizations in
-<http://fatoptimizer.readthedocs.org/>`_ project, an AST optimizer
+a new AST optimizer: issue #11549, `Build-out an AST optimizer, moving
-specializing functions using guards.
+some functionality out of the peephole optimizer
-
+<https://bugs.python.org/issue11549>`_.  The patch adds ``ast.Lit`` (it
-The Issue #17515 `"Add sys.setasthook() to allow to use a custom AST"
+was proposed to rename it to ``ast.Literal``).
-optimizer <https://bugs.python.org/issue17515>`_ was a first attempt of
-API for code transformers, but specific to AST.
 
 
 Python Preprocessors