def sign_up(request):
    if request.method == 'POST':
        form = RegistrationForm(request.POST)
        if form.is_valid():
            form.save()
            username = form.cleaned_data['username']
            password = form.cleaned_data['password1']
            user = authenticate(username=username, password=password)
            login(request, user)
            return redirect('/account/profile')
    else:
        form = RegistrationForm()
        context = {'form': form}
        return render(request, 'sign_up.html', context)