djago email subscription confirmation code example

Example: django email confirmation

from django.http import HttpResponsefrom django.shortcuts import render, redirectfrom django.contrib.auth import login, authenticatefrom .forms import SignupFormfrom django.contrib.sites.shortcuts import get_current_sitefrom django.utils.encoding import force_bytes, force_textfrom django.utils.http import urlsafe_base64_encode, urlsafe_base64_decodefrom django.template.loader import render_to_stringfrom .tokens import account_activation_tokenfrom django.contrib.auth.models import Userfrom django.core.mail import EmailMessagedef signup(request):    if request.method == 'POST':        form = SignupForm(request.POST)        if form.is_valid():            user = form.save(commit=False)            user.is_active = False            user.save()            current_site = get_current_site(request)            mail_subject = 'Activate your blog account.'            message = render_to_string('acc_active_email.html', {                'user': user,                'domain': current_site.domain,                'uid':urlsafe_base64_encode(force_bytes(user.pk)),                'token':account_activation_token.make_token(user),            })            to_email = form.cleaned_data.get('email')            email = EmailMessage(                        mail_subject, message, to=[to_email]            )            email.send()            return HttpResponse('Please confirm your email address to complete the registration')    else:        form = SignupForm()    return render(request, 'signup.html', {'form': form})