- adding experimental python31 build

- cleanup python libraries:
 * moving all python libraries into a attr set into a directory
   so that expressions can be used for both: python 2.5 and 2.6 easily
 * disabling packages which don't build

svn path=/nixpkgs/trunk/; revision=21142

pkgs/development/python-modules/zope/zope_python-readline.patch

@@ -1,12 +0,0 @@
-diff -r 8833d4892dfc Zope-3.2.1/Dependencies/zope.publisher-Zope-3.2.1/zope.publisher/http.py
---- a/Dependencies/zope.publisher-Zope-3.2.1/zope.publisher/http.py	Mon Aug 18 14:55:39 2008 +0200
-+++ b/Dependencies/zope.publisher-Zope-3.2.1/zope.publisher/http.py	Mon Aug 18 16:37:02 2008 +0200
-@@ -198,7 +198,7 @@ class HTTPInputStream(object):
-         self.cacheStream.write(data)
-         return data
- 
--    def readline(self):
-+    def readline(self, size=None):
-         data = self.stream.readline()
-         self.cacheStream.write(data)
-         return data