bottle.py 文件源码

def _mount_app(self, prefix, app, **options):
        if app in self._mounts or '_mount.app' in app.config:
            depr(0, 13, "Application mounted multiple times. Falling back to WSGI mount.",
                 "Clone application before mounting to a different location.")
            return self._mount_wsgi(prefix, app, **options)

        if options:
            depr(0, 13, "Unsupported mount options. Falling back to WSGI mount.",
                 "Do not specify any route options when mounting bottle application.")
            return self._mount_wsgi(prefix, app, **options)

        if not prefix.endswith("/"):
            depr(0, 13, "Prefix must end in '/'. Falling back to WSGI mount.",
                 "Consider adding an explicit redirect from '/prefix' to '/prefix/' in the parent application.")
            return self._mount_wsgi(prefix, app, **options)

        self._mounts.append(app)
        app.config['_mount.prefix'] = prefix
        app.config['_mount.app'] = self
        for route in app.routes:
            route.rule = prefix + route.rule.lstrip('/')
            self.add_route(route)