Custom model mezzanine

gistfile1.py

#-*- coding: utf-8 -*-
from django.db import models
from django.utils.translation import ugettext_lazy as _

from mezzanine.core.fields import FileField, RichTextField
from mezzanine.core.models import RichText, Orderable, Slugged
from mezzanine.pages.models import Page
from mezzanine.forms.models import Form
from mezzanine.utils.models import upload_to
from django.forms import TextInput, Textarea

class ContactPage(Page, Form):
    """
    A page representing of the home page
    """
    address = RichTextField(_('Infos'), null=True, blank=True)

    class Meta:
        verbose_name = _("Formulaire et infos")
        verbose_name_plural = _("Formulaire et infos")