Hi, I just tried to check out the new 1.9.x branch of z3c.form (thanks Stephan!), but it won't build with Python 2.4 (I need this to work with Plone, so 2.4 is a must): $ ./bin/buildout Develop: '/users/optilude/Development/Plone/Code/Products/z3c.form/.' Unused options for buildout: 'zope-directory' 'download-directory'. Installing test. Getting distribution for 'z3c.template'. Got z3c.template 1.1a1. Getting distribution for 'z3c.coverage'. Got z3c.coverage 0.1.0. Getting distribution for 'zope.app.container'. Got zope.app.container 3.7.0. Getting distribution for 'zope.security'. Got zope.security 3.6.0. Getting distribution for 'zope.publisher'. Got zope.publisher 3.5.5. Getting distribution for 'zope.pagetemplate'. Got zope.pagetemplate 3.4.1. Getting distribution for 'zope.lifecycleevent'. Got zope.lifecycleevent 3.5.0. Getting distribution for 'zope.configuration'. Got zope.configuration 3.4.1. Getting distribution for 'zope.app.testing'. Got zope.app.testing 3.6.0. Getting distribution for 'zope.app.pagetemplate'. Got zope.app.pagetemplate 3.5.0. Getting distribution for 'ZODB3'. Got ZODB3 3.9.0a12. Getting distribution for 'zope.app.publisher'. Got zope.app.publisher 3.6.0. Getting distribution for 'zope.app.component'. Got zope.app.component 3.6.0. Getting distribution for 'zope.tal'. Got zope.tal 3.5.0. Getting distribution for 'zope.dublincore'. Got zope.dublincore 3.4.2. Getting distribution for 'zope.traversing'. Got zope.traversing 3.5.2. Getting distribution for 'zope.proxy>=3.4.2'. Got zope.proxy 3.5.0. Getting distribution for 'zope.deferredimport'. Got zope.deferredimport 3.5.0. Getting distribution for 'zope.app.security'. Got zope.app.security 3.6.0. Getting distribution for 'zope.app.publication'. Got zope.app.publication 3.5.1. Getting distribution for 'zope.app.authentication'. Got zope.app.authentication 3.5.0a2. Getting distribution for 'zope.app.appsetup>=3.5.0'. Got zope.app.appsetup 3.9.0. Getting distribution for 'zope.contenttype'. Got zope.contenttype 3.4.1. Getting distribution for 'zope.formlib'. Got zope.formlib 3.5.2. Getting distribution for 'zope.filerepresentation'. Got zope.filerepresentation 3.5.0. Getting distribution for 'zope.dottedname'. Got zope.dottedname 3.4.5. Getting distribution for 'zope.app.form'. Got zope.app.form 3.7.1. Getting distribution for 'zope.app.exception'. Got zope.app.exception 3.4.2. Getting distribution for 'zope.app.http'. Got zope.app.http 3.5.0. Getting distribution for 'zope.error'. Got zope.error 3.6.0. Getting distribution for 'zope.session'. Got zope.session 3.8.0. Getting distribution for 'RestrictedPython'. File "build/bdist.macosx-10.3-i386/egg/RestrictedPython/tests/before_and_after25.py", line 30 x.y = y.z if y.z else y.x ^ SyntaxError: invalid syntax File "build/bdist.macosx-10.3-i386/egg/RestrictedPython/tests/before_and_after26.py", line 30 with whatever as x: ^ SyntaxError: invalid syntax File "build/bdist.macosx-10.3-i386/egg/RestrictedPython/tests/security_in_syntax26.py", line 6 with x as _leading_underscore: ^ SyntaxError: invalid syntax File "/Users/optilude/.buildout/eggs/tmpayO5gI/RestrictedPython-3.5.0-py2.4.egg/RestrictedPython/tests/before_and_after25.py", line 30 x.y = y.z if y.z else y.x ^ SyntaxError: invalid syntax File "/Users/optilude/.buildout/eggs/tmpayO5gI/RestrictedPython-3.5.0-py2.4.egg/RestrictedPython/tests/before_and_after26.py", line 30 with whatever as x: ^ SyntaxError: invalid syntax File "/Users/optilude/.buildout/eggs/tmpayO5gI/RestrictedPython-3.5.0-py2.4.egg/RestrictedPython/tests/security_in_syntax26.py", line 6 with x as _leading_underscore: ^ SyntaxError: invalid syntax Got RestrictedPython 3.5.0. Generated script '/users/optilude/Development/Plone/Code/Products/z3c.form/bin/test'. Installing coverage-test. Generated script '/users/optilude/Development/Plone/Code/Products/z3c.form/bin/coverage-test'. Installing coverage-report. Couldn't find index page for 'z3c.coverage' (maybe misspelled?) Generated script '/users/optilude/Development/Plone/Code/Products/z3c.form/bin/coverage-report'. Clearly, I'm getting too new a version of RestrictedPython, but this is running against the 3.4 KGS, so I don't see how that could really happen. :( Martin -- Author of `Professional Plone Development`, a book for developers who want to work with Plone. See http://martinaspeli.net/plone-book