111 lines
4.9 KiB
ReStructuredText
111 lines
4.9 KiB
ReStructuredText
What's new in Tornado 2.3
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=========================
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May 31, 2012
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------------
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HTTP clients
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~~~~~~~~~~~~
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* `tornado.httpclient.HTTPClient` now supports the same constructor
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keyword arguments as `.AsyncHTTPClient`.
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* The ``max_clients`` keyword argument to `.AsyncHTTPClient.configure` now works.
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* ``tornado.simple_httpclient`` now supports the ``OPTIONS`` and ``PATCH``
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HTTP methods.
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* ``tornado.simple_httpclient`` is better about closing its sockets
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instead of leaving them for garbage collection.
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* ``tornado.simple_httpclient`` correctly verifies SSL certificates for
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URLs containing IPv6 literals (This bug affected Python 2.5 and 2.6).
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* ``tornado.simple_httpclient`` no longer includes basic auth credentials
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in the ``Host`` header when those credentials are extracted from the URL.
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* ``tornado.simple_httpclient`` no longer modifies the caller-supplied header
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dictionary, which caused problems when following redirects.
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* ``tornado.curl_httpclient`` now supports client SSL certificates (using
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the same ``client_cert`` and ``client_key`` arguments as
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``tornado.simple_httpclient``)
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HTTP Server
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~~~~~~~~~~~
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* `.HTTPServer` now works correctly with paths starting with ``//``
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* ``HTTPHeaders.copy`` (inherited from `dict.copy`) now works correctly.
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* ``HTTPConnection.address`` is now always the socket address, even for non-IP
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sockets. ``HTTPRequest.remote_ip`` is still always an IP-style address
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(fake data is used for non-IP sockets)
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* Extra data at the end of multipart form bodies is now ignored, which fixes
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a compatibility problem with an iOS HTTP client library.
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``IOLoop`` and ``IOStream``
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~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* `.IOStream` now has an ``error`` attribute that can be used to determine
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why a socket was closed.
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* ``tornado.iostream.IOStream.read_until`` and ``read_until_regex`` are much
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faster with large input.
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* ``IOStream.write`` performs better when given very large strings.
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* `.IOLoop.instance()` is now thread-safe.
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``tornado.options``
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~~~~~~~~~~~~~~~~~~~
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* `tornado.options` options with ``multiple=True`` that are set more than
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once now overwrite rather than append. This makes it possible to override
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values set in ``parse_config_file`` with ``parse_command_line``.
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* `tornado.options` ``--help`` output is now prettier.
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* `tornado.options.options` now supports attribute assignment.
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``tornado.template``
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~~~~~~~~~~~~~~~~~~~~
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* Template files containing non-ASCII (utf8) characters now work on Python 3
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regardless of the locale environment variables.
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* Templates now support ``else`` clauses in
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``try``/``except``/``finally``/``else`` blocks.
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``tornado.web``
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~~~~~~~~~~~~~~~
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* `tornado.web.RequestHandler` now supports the ``PATCH`` HTTP method.
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Note that this means any existing methods named ``patch`` in
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``RequestHandler`` subclasses will need to be renamed.
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* `tornado.web.addslash` and ``removeslash`` decorators now send permanent
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redirects (301) instead of temporary (302).
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* `.RequestHandler.flush` now invokes its callback whether there was any data
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to flush or not.
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* Repeated calls to `.RequestHandler.set_cookie` with the same name now
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overwrite the previous cookie instead of producing additional copies.
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* ``tornado.web.OutputTransform.transform_first_chunk`` now takes and returns
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a status code in addition to the headers and chunk. This is a
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backwards-incompatible change to an interface that was never technically
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private, but was not included in the documentation and does not appear
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to have been used outside Tornado itself.
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* Fixed a bug on python versions before 2.6.5 when `.URLSpec` regexes
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are constructed from unicode strings and keyword arguments are extracted.
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* The ``reverse_url`` function in the template namespace now comes from
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the `.RequestHandler` rather than the `.Application`. (Unless overridden,
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`.RequestHandler.reverse_url` is just an alias for the `.Application`
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method).
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* The ``Etag`` header is now returned on 304 responses to an ``If-None-Match``
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request, improving compatibility with some caches.
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* `tornado.web` will no longer produce responses with status code 304
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that also have entity headers such as ``Content-Length``.
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Other modules
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~~~~~~~~~~~~~
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* `tornado.auth.FacebookGraphMixin` no longer sends ``post_args`` redundantly
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in the url.
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* The ``extra_params`` argument to `tornado.escape.linkify` may now be
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a callable, to allow parameters to be chosen separately for each link.
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* `tornado.gen` no longer leaks ``StackContexts`` when a ``@gen.engine`` wrapped
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function is called repeatedly.
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* `tornado.locale.get_supported_locales` no longer takes a meaningless
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``cls`` argument.
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* `.StackContext` instances now have a deactivation callback that can be
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used to prevent further propagation.
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* `tornado.testing.AsyncTestCase.wait` now resets its timeout on each call.
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* `tornado.wsgi.WSGIApplication` now parses arguments correctly on Python 3.
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* Exception handling on Python 3 has been improved; previously some exceptions
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such as `UnicodeDecodeError` would generate ``TypeErrors``
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