Hello, I am finding it hard to install zope.viewlet package via buildout. Here is my buildout configuration snippet [zopeextras] recipe = zc.recipe.egg eggs = zope.catalog zope.viewlet [app] recipe = zc.recipe.egg eggs = testbb z3c.evalexception>=2.0 Paste PasteScript PasteDeploy ${zopeextras:eggs} interpreter = bbpy ... I get the following error while running buildout Getting distribution for 'zope.viewlet==3.7.2'. install_dir /home/joshua/mudpit/testbb/eggs/tmpv7F8Bd error: None An error occured when trying to install zope.viewlet 3.7.2. Look above this message for any errors that were output by easy_install. While: Installing zopeextras. Getting distribution for 'zope.viewlet==3.7.2'. Error: Couldn't install: zope.viewlet 3.7.2 To check, I tried doing the 'easy_install' to a virtualenv set folder. zope.viewlet package along with its dependencies got installed even though I got the following error with RestrictedPython-3.6.0 package Processing RestrictedPython-3.6.0.zip Running RestrictedPython-3.6.0/setup.py -q bdist_egg --dist-dir /tmp/easy_install-pNkln2/RestrictedPython-3.6.0/egg-dist-tmp-UpguQT SyntaxError: ('invalid syntax', ('build/bdist.linux-x86_64/egg/RestrictedPython/tests/before_and_after27.py', 30, 17, ' x = {y: y for y in whatever if y}\n')) SyntaxError: ('invalid syntax', ('build/bdist.linux-x86_64/egg/RestrictedPython/tests/security_in_syntax27.py', 6, 13, ' {y: y for _restricted_name in x}\n')) SyntaxError: ('invalid syntax', ('/tmp/test2/lib/python2.6/site-packages/RestrictedPython-3.6.0-py2.6.egg/RestrictedPython/tests/before_and_after27.py', 30, 17, ' x = {y: y for y in whatever if y}\n')) SyntaxError: ('invalid syntax', ('/tmp/test2/lib/python2.6/site-packages/RestrictedPython-3.6.0-py2.6.egg/RestrictedPython/tests/security_in_syntax27.py', 6, 13, ' {y: y for _restricted_name in x}\n')) Adding RestrictedPython 3.6.0 to easy-install.pth file Installed /tmp/test2/lib/python2.6/site-packages/RestrictedPython-3.6.0-py2.6.egg Finished processing dependencies for zope.viewlet I googled to find the solution for this but I couldn't find one. Can someone tell me where I am wrong? Thanks -- Joshua Immanuel HiPro IT Solutions Private Limited http://hipro.co.in