'Display a standalone shell.'

def display_console(self, request):

    if (0 not in self.frames):
        if (self.console_init_func is None):
            ns = {}
        else:
            ns = dict(self.console_init_func())
        ns.setdefault('app', self.app)
        self.frames[0] = _ConsoleFrame(ns)
    is_trusted = bool(self.check_pin_trust(request.environ))
    return Response(render_console_html(secret=self.secret, evalex_trusted=is_trusted), mimetype='text/html')
