I know there is pywhois but it can't used in gae, see this question. But i really need this function to verify whether a domain is registered, is there other way to implement whois by pure python? Thanks.
You need to find a HTTP Api to get whois like http://www.whoisxmlapi.com/ and with urlfetch you can fetch informations.
An another solution is to create this webservice with a micro instance from AWS and install the module pywhois, you need to just create the interface in HTTP.
来源：https://stackoverflow.com/questions/7266588/how-to-use-whois-in-google-app-engine