HTTP servers and clients

• tornado.httpserver — Non-blocking HTTP server
  • HTTP Server
• tornado.httpclient — Asynchronous HTTP client
  • HTTP client interfaces
  • Request objects
  • Response objects
  • Exceptions
  • Command-line interface
• tornado.httputil — 操作 HTTP headers 和 URL
• tornado.http1connection – HTTP/1.x client/server 实现