Add support for PyPy and PyPy3.

.travis.yml

@@ -5,6 +5,8 @@ env:
     - TOXENV=py27
     - TOXENV=py33
     - TOXENV=py34
+    - TOXENV=pypy
+    - TOXENV=pypy3
 install:
     - travis_retry pip install tox
 script:

CHANGES.txt

@@ -5,6 +5,8 @@ CHANGES
 4.0.0 (unreleased)
 ------------------
 
+- Add support for PyPy and PyPy3.
+
 - Add support for Python 3.4.
 
 - Add support for testing on Travis.

src/zope/contentprovider/README.txt

@@ -123,6 +123,9 @@ So let's create a simple content provider:
   ...
   ...     def render(self):
   ...         return u'<div class="box">%s</div>' %self.message
+  ...
+  ...     def __repr__(self):
+  ...         return '<MessageBox object at %x>' % id(self)
 
 The ``update()`` method is executed during phase one. Since no state needs to
 be calculated and no data is modified by this simple content provider, it is

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 envlist =
-    py26,py27,py33,py34
+    py26,py27,py33,py34,pypy,pypy3
 
 [testenv]
 commands =