UnBound LocalError in Django?

Question

I have a registration view in django like this:

from django import forms
from django.contrib.auth.forms import UserCreationForm
from django.shortcuts import render_to_response, RequestContext, HttpResponseRedirect

def register(request):
    '''Registers the users'''

    if request.method == 'POST':
        form = UserCreationForm(request.POST)

        if form.is_valid():
            new_user = form.save()
            return HttpResponseRedirect('/index/') #Returns user to user if successfully logs in

        else:
            form = UserCreationForm()    #Redirects to the UserCreationForm is the form is invalid
            return render_to_response('registration/register.html', {'form':form}, context_instance=RequestContext(request))

    else:
        return render_to_response('registration/register.html', {'form':form}, context_instance=RequestContext(request))

When I try to run the view I get UnBound LocalError.

#Full exception:
Traceback:
File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response
  115.                         response = callback(request, *callback_args, **callback_kwargs)
File "/home/zurelsoft/workspace/fyp/summary/views.py" in register
  20.         return render_to_response('registration/register.html', {'form':form}, context_instance=RequestContext(request))

Exception Type: UnboundLocalError at /
Exception Value: local variable 'form' referenced before assignment

What's wrong?

Answer 1

If Method is not post then form is going to the last else block

you should define your form outside the request.POST like

def register(request):
    '''Registers the users'''
    form = UserCreationForm()
    if request.method == 'POST':
        form = UserCreationForm(request.POST)

        if form.is_valid():
            new_user = form.save()
            return HttpResponseRedirect('/index/') #Returns user to user if successfully logs in

        else:
            form = UserCreationForm()    #Redirects to the UserCreationForm is the form is invalid
            return render_to_response('registration/register.html', {'form':form}, context_instance=RequestContext(request))

    else:
        return render_to_response('registration/register.html', {'form':form}, con

Answer 2

For GET requests you are not defining form.

I would suggest to add

form = UserCreationForm()

before line

if request.method == 'POST':