what version of of pylons are you using ? there are some yet-to-be documented compatibility issues with newer versions of WebHelpers and other external libraries against the 1.0.1 branch.
I'm not sure what the 'max supported version' is, but i would suggest dropping down to the lowest specified in the install_requires. i think that is 1.1.1 the problem you're seeing is that WebHelpers changed a lot since Pylons was last released. I've had many other issues come up as well with the 1.2x or higher branches. i strongly suggest you drop down. there's some info in this thread - https://groups.google.com/forum/?fromgroups=#!topic/pylons-discuss/J8Azw0yGISU - and a few others. -- You received this message because you are subscribed to the Google Groups "pylons-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to pylons-discuss+unsubscr...@googlegroups.com. To post to this group, send email to pylons-discuss@googlegroups.com. Visit this group at http://groups.google.com/group/pylons-discuss?hl=en. For more options, visit https://groups.google.com/groups/opt_out.