Please create python3-flask-whooshee subpackage to support python3.
See https://fedoraproject.org/wiki/Packaging:Python#Example_spec_file for example.
There are needed few fixes to make flask-whooshee work with python3, I am in process of submitting a pull request.
python-flask-whooshee-0.0.5-4.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/python-flask-whooshee-0.0.5-4.fc20
Package python-flask-whooshee-0.0.5-4.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing python-flask-whooshee-0.0.5-4.fc20' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2013-18295/python-flask-whooshee-0.0.5-4.fc20 then log in and leave karma (feedback).
python-flask-whooshee-0.0.5-4.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.