def __init__(self, groups=None):
        super(GroupedRequirements, self).__init__(NamedRequirements)
        self.groups = groups or self.default_groups
        self.filename = None
        self.create_default_groups()
def uninstall_plugin(plugin):
    plugin = get_plugin_from_all(plugin)
    if plugin.uninstallable:
        plugin.uninstall()
        Setting.invalidate_cache()

        flash(_("Plugin has been uninstalled."), "success")
    else:
        flash(_("Cannot uninstall plugin."), "danger")

    return redirect(url_for("management.plugins"))