Asynchronous networking

• tornado.ioloop — Main event loop
  • IOLoop objects
    • Running an IOLoop
    • I/O events
    • Timeouts
    • Debugging and error handling
• tornado.iostream — Convenient wrappers for non-blocking sockets
• tornado.httpclient — Non-blocking HTTP client
  • HTTP client interfaces
  • Request objects
  • Response objects
  • Exceptions
  • Command-line interface
• tornado.netutil — Miscellaneous network utilities