in the widget lib

from tw.forms import TableFieldSet
from tw.uploadify import Uploadify

class UploadFieldset(TableFieldSet):
    label_text = "upload files"
    fields = [
        Uploadify('upload_file', label_text='upload File',
                  script='upload',
                  fileDataName='upload_file',
                  scriptData={'_method': 'PUT'},
                  removeCompleted=False,
                  ),
            ]

upload_fieldset = UploadFieldset("upload_fieldset")

in the view controller

from widgetlib import upload_fieldset

...

class UploadController(BaseController):

    @expose('project.templates.upload')
    def index(self):
        params = { 'child_args' : {
                      'upload_file': dict(script="foobarbaz"),
                    }
                  }
        tmpl_context.file_form = upload_fieldset
        return dict(params=params)

in the template

<div py:replace="tmpl_context.file_form(**params)">Files Form</div>

options

only some options are implemented now, please refer to the widgets.py source code