Twisted is dropping python 2.5 support in their upcoming 12.2.0 release.

bdarnell · bdarnell · commit 3474d5f9318b · 2012-08-30T13:42:54.000-04:00
diff --git a/tox.ini b/tox.ini
@@ -36,7 +36,8 @@ deps =
      MySQL-python
      pycurl
      simplejson
-     twisted>=12.0.0
+     # twisted is dropping python 2.5 support in 12.2.0
+     twisted<=12.1.0
      # zope.interface (used by twisted) dropped python 2.5 support in 4.0
      zope.interface<4.0
 
