def add(self, elem, replace=False):
        """Add a requirement.

        :param elem: a string or :class:`Requirement` instance.
        :param replace: if `True`, packages in the set with the same name will
            be removed first.
        """
        if isinstance(elem, text_type):
            elem = Requirement.coerce(elem)
        if replace and elem in self:
            self.remove(elem)
        super(Requirements, self).add(elem)
def banned_users():
    page = request.args.get("page", 1, type=int)
    search_form = UserSearchForm()

    users = User.query.filter(
        Group.banned == True,
        Group.id == User.primary_group_id
    ).paginate(page, flaskbb_config['USERS_PER_PAGE'], False)

    if search_form.validate():
        users = search_form.get_results().\
            paginate(page, flaskbb_config['USERS_PER_PAGE'], False)

        return render_template("management/banned_users.html", users=users,
                               search_form=search_form)

    return render_template("management/banned_users.html", users=users,
                           search_form=search_form)