[Flask] Help with Flask-WTF

[Lorenzo Mainardi]

Hello, I'm trying to do something with Flask-Bootstrap and Flask-WTF. This
is my app.py:

from flask import Flask
from flask_wtf.csrf import CsrfProtect
from flask_bootstrap import Bootstrap

app = Flask(__name__)
Bootstrap(app)
CsrfProtect(app)

This is my template:

{% extends "bootstrap/base.html" %}
{% import "bootstrap/wtf.html" as wtf %}

{% block title %}

{% endblock %}

{% block content %}
{{ wtf.quick_form(form) }}
{% include "footer.html" %}
{% endblock %}

This is the traceback (only last line):

  File "/home/lorenzo/projects/broen/lib/python2.7/site-packages/flask_bootstrap/templates/bootstrap/wtf.html",
line 200, in template
    {{ form.hidden_tag() }}
UndefinedError: 'forms.SignupForm object' has no attribute 'hidden_tag'

All packages are installed via pip. Could you help me to solve it? Regards

-- 
LORENZO MAINARDI
http://blog.mainardi.me
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/flask/attachments/20170506/338612e0/attachment.html>