Django login script code snippet

Based off what I learned making my previous tutorial A simple introduction to Django forms, I made a somewhat more elegant login script which includes the ability to log out (what a novel idea!). So here it is: models.py 
from django import forms

class LoginForm(forms.Form):
	username = forms.CharField(max_length=100)
	password = forms.CharField(widget=forms.PasswordInput(render_value=False),max_length=100)
My previous tutorial explains the widget parameter. views.py 
from project.courses.models import LoginForm
def check_login(request):
	def errorHandle(error):
		form = LoginForm()
		return render_to_response('pathto/login.html', {
				'error' : error,
				'form' : form,
		})
	if request.user.is_authenticated():
		username = request.user.username
		return render_to_response('pathto/logged_in.html', {
			'username': username,
		})
	else:
		if request.method == 'POST': # If the form has been submitted...
			form = LoginForm(request.POST) # A form bound to the POST data
			if form.is_valid(): # All validation rules pass
				username = request.POST['username']
				password = request.POST['password']
				user = authenticate(username=username, password=password)
				if user is not None:
					if user.is_active:
						# Redirect to a success page.
						login(request, user)
						return render_to_response('pathto/logged_in.html', {
							'username': username,
						})
					else:
						# Return a 'disabled account' error message
						error = u'account disabled'
						return errorHandle(error)
				else:
					 # Return an 'invalid login' error message.
					error = u'invalid login'
					return errorHandle(error)
			else: 
				error = u'form is invalid'
				return errorHandle(error)		
		else:
			form = LoginForm() # An unbound form
			return render_to_response('pathto/login.html', {
				'form': form,
			})

def logout_view(request):
	if request.user.is_authenticated():
		logout(request)
		form = LoginForm()
		return check_login(request)
	else: 
		check_login(request)
		return HttpResponseRedirect('/')
The errorHandle function takes an error message as an argument and passes that to the login template. If the template is given an error message, it displays that above the login form. Pretty simple, so far? Good. The logout_view function checks if the user is not logged in. If the user is logged in, it logs it out. And here are the templates: login.html
logged_in.html 
Welcome, 


Logout
You can also look at this code at djangosnippets.org.
Alan 22 December 2008