• Jul 15, 2016
  • General
  • tornado.curl_httpclient
  • tornado.gen
  • tornado.httpclient
  • tornado.httpserver
  • tornado.ioloop
  • tornado.netutil
  • tornado.options
  • tornado.simple_httpclient
  • tornado.tcpserver
  • tornado.testing
  • tornado.web
  • tornado.websocket

Jul 15, 2016

General

• Tornado now requires Python 2.7 or 3.3+; versions 2.6 and 3.2 are no longer supported. Pypy3 is still supported even though its latest release is mainly based on Python 3.2.
• The monotonic package is now supported as an alternative to Monotime for monotonic clock support on Python 2.

tornado.curl_httpclient

• Failures in _curl_setup_request no longer cause the max_clients pool to be exhausted.
• Non-ascii header values are now handled correctly.

tornado.gen

• with_timeout now accepts any yieldable object (except YieldPoint), not just tornado.concurrent.Future.

tornado.httpclient

• The errors raised by timeouts now indicate what state the request was in; the error message is no longer simply “599 Timeout”.
• Calling repr on a tornado.httpclient.HTTPError no longer raises an error.

tornado.httpserver

• Int-like enums (including http.HTTPStatus) can now be used as status codes.
• Responses with status code 204 No Content no longer emit a Content-Length: 0 header.

tornado.ioloop

• Improved performance when there are large numbers of active timeouts.

tornado.netutil

• All included Resolver implementations raise IOError (or a subclass) for any resolution failure.

tornado.options

• Options can now be modified with subscript syntax in addition to attribute syntax.
• The special variable __file__ is now available inside config files.

tornado.simple_httpclient

• HTTP/1.0 (not 1.1) responses without a Content-Length header now work correctly.

tornado.tcpserver

• TCPServer.bind now accepts a reuse_port argument.

tornado.testing

• Test sockets now always use 127.0.0.1 instead of localhost. This avoids conflicts when the automatically-assigned port is available on IPv4 but not IPv6, or in unusual network configurations when localhost has multiple IP addresses.

tornado.web

• image/svg+xml is now on the list of compressible mime types.
• Fixed an error on Python 3 when compression is used with multiple Vary headers.

tornado.websocket

• WebSocketHandler.__init__ now uses super, which improves support for multiple inheritance.