Description of problem: The python-wtforms version is very old: 0.6.3, while version 1.0.2 is the current version. Please upgrade for F18. Also upgrade python-flask-wtf (similar/related problem, I'll submit a separate bug for that).
The related bug report for upgrading python-flask-wtf is: https://bugzilla.redhat.com/show_bug.cgi?id=863677
python-flask-wtf-0.8-1.fc18,python-wtforms-1.0.2-1.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/python-flask-wtf-0.8-1.fc18,python-wtforms-1.0.2-1.fc18
Package python-flask-wtf-0.8-1.fc18, python-wtforms-1.0.2-1.fc18: * should fix your issue, * was pushed to the Fedora 18 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing python-flask-wtf-0.8-1.fc18 python-wtforms-1.0.2-1.fc18' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-15937/python-flask-wtf-0.8-1.fc18,python-wtforms-1.0.2-1.fc18 then log in and leave karma (feedback).
python-flask-wtf-0.8-1.fc18, python-wtforms-1.0.2-1.fc18 has been pushed to the Fedora 18 stable repository. If problems still persist, please make note of it in this bug report.