[pypy-commit] pypy dict-strategies: fixed test in lib-python/modified-2.7/test_weakref and adjusted cpython-differences documentation

[l.diekmann]

Author: Lukas Diekmann <lukas.diekmann at uni-duesseldorf.de>
Branch: dict-strategies
Changeset: r44833:c854a2e4ea5f
Date: 2011-06-08 16:51 +0200
http://bitbucket.org/pypy/pypy/changeset/c854a2e4ea5f/

Log:	fixed test in lib-python/modified-2.7/test_weakref and adjusted
	cpython-differences documentation

diff --git a/lib-python/modified-2.7/test/test_weakref.py b/lib-python/modified-2.7/test/test_weakref.py
--- a/lib-python/modified-2.7/test/test_weakref.py
+++ b/lib-python/modified-2.7/test/test_weakref.py
@@ -999,7 +999,7 @@
             self.assertTrue(v is value2)
         k, v = weakdict.popitem()
         self.assertTrue(len(weakdict) == 0)
-        if k is key1:
+        if k == key1:
             self.assertTrue(v is value1)
         else:
             self.assertTrue(v is value2)
diff --git a/pypy/doc/cpython_differences.rst b/pypy/doc/cpython_differences.rst
--- a/pypy/doc/cpython_differences.rst
+++ b/pypy/doc/cpython_differences.rst
@@ -248,5 +248,7 @@
   never a dictionary as it sometimes is in CPython. Assigning to
   ``__builtins__`` has no effect.
 
+* object identity of immutable keys in dictionaries is not necessarily preserved.
+  Never compare immutable objects with ``is``.
+
 .. include:: _ref.txt
-