Templates now showing any errors in Django - django

Question

I have a form for registration. When I try to register, it does and everything is fine, just that, its now showing any Form Validation Errors in the template, when there should be.
forms.py:
from django.contrib.auth.forms import UserCreationForm
from django.contrib.auth.models import User
from django import forms
import re
from django.core.exceptions import ObjectDoesNotExist
class UserCreationForm(UserCreationForm):
class Meta:
model = User
fields = ('first_name', 'last_name', 'username',)
username = forms.EmailField(label='Email', max_length=250)
def save(self, commit=True):
user = super(UserCreationForm, self).save(commit=False)
user.email = user.username
user.save()
return user
def clean_password2(self):
if 'password1' in self.cleaned_data:
password1 = self.cleaned_data['password1']
password2 = self.cleaned_data['password2']
if password1 == password2:
return password2
raise forms.ValidationError('Password do not match.')
def clean_username(self):
username = self.cleaned_data['username']
if not re.search(r'^\w[\w.]*#[\w.]+$', username):
raise forms.ValidationError('Please enter a valid email address.')
try:
User.objects.get(username=username)
except ObjectDoesNotExist:
return username
raise forms.ValidationError('Email address is already taken.')
views.py:
def register_user(request):
if request.method == 'POST':
form = UserCreationForm(request.POST)
if form.is_valid():
form.save()
return HttpResponseRedirect('/accounts/register_success')
else:
print form.is_valid()
print form.errors
args = {}
args.update(csrf(request))
args['form'] = UserCreationForm()
print args
return render_to_response('register.html', args)
register.html:
{% extends "base.html" %}
{% block content %}
<h1>Registration:</h1>
<form method="post" action=".">
{% csrf_token %}
{{form.as_p}}
<input type="submit" value="Register" />
</form>
{% endblock %}
I even tried {% if form.errors %}:
{% extends "base.html" %}
{% block content %}
{% if form.errors %}
<p>{{form.errors }}</p>
{% endif %}
<h1>Registration:</h1>
<form method="post" action=".">
{% csrf_token %}
{{form.as_p}}
<input type="submit" value="Register" />
</form>
{% endblock %}
But with no luck. I think I am missing something.

Answer 1

The reason is, if there are errors, you are overwriting it with form=UserCreationForm()
Basically, if if form.is_valid() is False, you need to send the form unaltered. By calling form=UserCreationForm after form.is_valid() you are overriding the errors
Try this:
def register_user(request):
if request.method == 'POST':
form = UserCreationForm(request.POST)
if form.is_valid():
form.save()
return HttpResponseRedirect('/accounts/register_success')
else:
print form.is_valid()
print form.errors
else:
form = UserCreationForm()
return render_to_response('register.html', {'form': form}, context_instance=RequestContext(request))