models_forms.py

forms.py
# -*- coding: utf-8 -*-
from django import forms
from volontulo.models import UserProfile


class RegistrationForm(forms.ModelForm):
    email = forms.CharField(max_length=254)
    password = forms.CharField(widget=forms.PasswordInput())

    class Meta:
        model = UserProfile
        fields = ['email', 'password']



models.py
from django.contrib.auth.models import User
from django.db import models


class UserProfile(models.Model):
    user = models.OneToOneField(User)

    def save(self):
        super(UserProfile, self).save()
        # self.user.username = self.user.email

    def __str__(self):
        return self.email