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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def signup_verify(request, uidb36=None, token=None):
 """ View for the link in the verification email sent to a new user when they create an account and ``ACCOUNTS_VERIFICATION_REQUIRED`` is set to ``True``. Activates the user and logs them in, redirecting to the URL they tried to access when signing up. """

    user = authenticate(uidb36=uidb36, token=token, is_active=False)
    if user is not None:
        user.is_active = True
        user.save()
        auth_login(request, user)
        info(request, _("Successfully signed up"))
        return login_redirect(request)
    else:
        error(request, _("The link you clicked is no longer valid."))
        return redirect("/")