forms.py

from django import forms
from django.contrib.auth.forms import UserCreationForm
from django.contrib.auth.models import User

class UserCreationFormExtended(UserCreationForm): 
    def __init__(self, *args, **kwargs): 
        super(UserCreationFormExtended, self).__init__(*args, 
**kwargs) 
        self.fields['email'].required = True 
        self.fields['first_name'].required = True 
        self.fields['last_name'].required = True 
    class Meta: 
        model = User 
        fields = ('username', 'email', 'first_name', 'last_name')