Get rid of dict.has_key(). Boy this has a lot of repercussions!
Not all code has been fixed yet; this is just a checkpoint...
The C API still has PyDict_HasKey() and _HasKeyString(); not sure
if I want to change those just yet.
diff --git a/Lib/test/test_site.py b/Lib/test/test_site.py
index 3a8b9d3..05a4ac4 100644
--- a/Lib/test/test_site.py
+++ b/Lib/test/test_site.py
@@ -216,7 +216,7 @@
 
     def test_sitecustomize_executed(self):
         # If sitecustomize is available, it should have been imported.
-        if not sys.modules.has_key("sitecustomize"):
+        if "sitecustomize" not in sys.modules:
             try:
                 import sitecustomize
             except ImportError: