wtform + GETパラメータ

hello.py

from werkzeug.wrappers import Request, Response
from wtforms import Form
import wtforms.fields as f
import wtforms.validators as v


class GreetingForm(Form):
    message = f.TextField(u'Message', validators=[v.Required()])

@Request.application
def application(request):
    form = GreetingForm(request.args)
    print(form.data)
    if form.validate():
        print(form.data)
        return Response("Hello {0}".format(form.message.data))
    return Response("NG")

def main(global_conf, **settings):
    app = application
    return app