views.py 文件源码

def generate_username(self, form):
        def random_username():
            h = hashlib.sha1(form.cleaned_data["email"]).hexdigest()[:25]
            # don't ask
            n = random.randint(1, (10 ** (5 - 1)) - 1)
            return "%s%d" % (h, n)
        while True:
            try:
                username = random_username()
                User.objects.get(username=username)
            except User.DoesNotExist:
                break
        return username