def register(request):
if request.method == 'POST':
    username = request.POST['username']
    password = request.POST['password']
    email = request.POST['email']
    user = User(email=email, username=username, password=password)
    if user.is_valid:
        user.save()
        context = {'message_good': "god" }
    else:
        context = {'message_bad': "bad." }
else:
    context = {'message_bad': "bad" }
return render(request, 'register.html', context)