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What's new in the next release of Tornado

In progress

  • The Tornado test suite now requires unittest2 when run on Python 2.5 or 2.6.
  • tornado.testing.AsyncTestCase and friends now extend unittest2.TestCase when it is available (and continue to use the standard unittest module when unittest2 is not available)
  • tornado.netutil.bind_sockets no longer sets AI_ADDRCONFIG; this will cause it to bind to both ipv4 and ipv6 more often than before.
  • tornado.netutil.bind_sockets has a new flags argument that can be used to pass additional flags to getaddrinfo.
  • Tornado no longer logs to the root logger. Details on the new logging scheme can be found under the tornado.log module. Note that in some cases this will require that you add an explicit logging configuration in ordre to see any output (perhaps just calling logging.basicConfig()), although both IOLoop.start() and tornado.options.parse_command_line will do this for you.
  • Errors while rendering templates no longer log the generated code, since the enhanced stack traces (from version 2.1) should make this unnecessary.
  • tornado.testing.ExpectLog can be used as a finer-grained alternative to tornado.testing.LogTrapTestCase
  • The command-line interface to tornado.testing.main now supports additional arguments from the underlying unittest module: verbose, quiet, failfast, catch, buffer.
  • Empty HTTP request arguments are no longer ignored. This applies to HTTPRequest.arguments and RequestHandler.get_argument[s] in WSGI and non-WSGI modes.
  • New function tornado.testing.bind_unused_port both chooses a port and binds a socket to it, so there is no risk of another process using the same port. get_unused_port is now deprecated.
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