aiohttp 0.20.0 release

The release has many optimizations as well as other improvements and bug fixes.

The most notable ones:

• Use TCP_CORK/TCP_NOPUSH and TCP_NODELAY for disabling Nagle algorithm
• Reduce amount of syscalls for chunked encoding transfer
• Improve performance of websocket mask applying
• Round server timeouts to seconds for grouping pending calls
• Implement Class Based Views
• Fix broken support for https proxies with authentication

Full list of changes:

• Extend list of web exceptions, add HTTPMisdirectedRequest,
  HTTPUpgradeRequired, HTTPPreconditionRequired, HTTPTooManyRequests,
  HTTPRequestHeaderFieldsTooLarge, HTTPVariantAlsoNegotiates,
  HTTPNotExtended, HTTPNetworkAuthenticationRequired status codes #644
• Do not remove AUTHORIZATION header by WSGI handler #649
• Fix broken support for https proxies with authentication #617
• Get REMOTE_* and SEVER_* http vars from headers when listening on
  unix socket #654
• Add HTTP 308 support #663
• Add Tf format (time to serve request in seconds, %06f format) to
  access log #669
• Remove one and a half years long deprecated
  ClientResponse.read_and_close() method
• Optimize chunked encoding: use a single syscall instead of 3 calls
  on sending chunked encoded data
• Use TCP_CORK and TCP_NODELAY to optimize network latency and
  throughput #680
• Websocket XOR performance improved #687
• Avoid sending cookie attributes in Cookie header #613
• Round server timeouts to second for grouping pending call. That
  leads to less amount of poller syscalls e.g epoll.poll(). #702
• Close connection on websocket handshake error #703
• Implement class based views #684
• Add headers parameter to ws_connect() #709
• Drop unused function parse_remote_addr() #708
• Close session on exception #707
• Store http code and headers in WSServerHandshakeError #706
• Make some low-level message properties readonly #710

aiohttp 0.19.0

Major aiohttp 0.19.0 release

Highlighted features

async for support for websockets and client multiparts,
support redirects history for client requests,
Timeout context manager for limiting execution time of inner block.

Full list of changes

• Memory leak in ParserBuffer #579
• Suppport gunicorn's max_requests settings in gunicorn worker
• Fix wsgi environment building #573
• Improve access logging #572
• Drop unused host and port from low-level server #586
• Add Python 3.5 async for implementation to server websocket #543
• Add Python 3.5 async for implementation to client websocket
• Add Python 3.5 async with implementation to client websocket
• Add charset parameter to web.Response constructor #593
• Forbid passing both Content-Type header and content_type or charset
  params into web.Response constructor
• Forbid duplicating of web.Application and web.Request #602
• Add an option to pass Origin header in ws_connect #607
• Add json_response function #592
• Make concurrent connections respect limits #581
• Collect history of responses if redirects occur #614
• Enable passing pre-compressed data in requests #621
• Expose named routes via UrlDispatcher.named_routes() #622
• Allow disabling sendfile by environment variable AIOHTTP_NOSENDFILE #629
• Use ensure_future if available
• Always quote params for Content-Disposition #641
• Support async for in multipart reader #640
• Add Timeout context manager #611

aiohttp 0.18.4

Bugfix release.

Changes

• Relax rule for router names again by adding dash to allowed
  characters: they may contain identifiers, dashes, dots and columns

aiohttp 0.18.3 bugfix release

Changes

• Fix formatting for _RequestContextManager helper #590

aiohttp 0.18.2

Bugfix release, fixes regression with usage OpenSSL < 1.0.0 #584

aiohttp 0.18.1

0.18.1 bugfix release

Changes

• Relax rule for router names: they may contain dots and columns
  starting from now

aiohttp 0.18.0

Major aiohttp release.

Added support for async for and async with, e.g.

async with client.get(url) as resp:
    async for line in resp.content:
        print(line)

auto-closes response object and iterates over response's content.

Server-side signals added (allows, for example, setup http headers for long-living responses in signal hook).

Python 3.3 support dropped.

Full list of changes is pretty huge:

Changes

• Use errors.HttpProcessingError.message as HTTP error reason and
  message #459

• Optimize cythonized multidict a bit

• Change repr's of multidicts and multidict views

• default headers in ClientSession are now case-insensitive

• Make '=' char and 'wss://' schema safe in urls #477

• ClientResponse.close() forces connection closing by default from now #479
  N.B. Backward incompatible change: was .close(force=False) Usingforceparameter for the method is deprecated: use.release()` instead.

• Properly requote URL's path #480

• add skip_auto_headers parameter for client API #486

• Properly parse URL path in aiohttp.web.Request #489

• Raise RuntimeError when chunked enabled and HTTP is 1.0 #488

• Fix a bug with processing io.BytesIO as data parameter for client API #500

• Skip auto-generation of Content-Type header #507

• Use sendfile facility for static file handling #503

• Default response_factory in app.router.add_static now is
  StreamResponse, not None. The functionality is not changed if
  default is not specified.

• Drop ClientResponse.message attribute, it was always implementation detail.

• Streams are optimized for speed and mostly memory in case of a big
  HTTP message sizes #496

• Fix a bug for server-side cookies for dropping cookie and setting it
  again without Max-Age parameter.

• Don't trim redirect URL in client API #499

• Extend precision of access log "D" to milliseconds #527

• Deprecate StreamResponse.start() method in favor of
  StreamResponse.prepare() coroutine #525

  .start() is still supported but responses begun with .start()
  doesn't call signal for response preparing to be sent.

• Add StreamReader.__repr__

• Drop Python 3.3 support, from now minimal required version is Python
  3.4.1 #541

• Add async with support for ClientSession.request() and family #536

• Ignore message body on 204 and 304 responses #505

• TCPConnector processed both IPv4 and IPv6 by default #559

• Add .routes() view for urldispatcher #519

• Route name should be a valid identifier name from now #567

• Implement server signals #562

• Drop an year-old deprecated files parameter from client API.

• Added async for support for aiohttp stream #542

aiohttp 0.17.4 release

Minor aiohttp release.

The main change is making code pep-492 compatible.
So you can use await in client API, e.g.:

async def getter(url):
    resp = await aiohttp.get(url)
    try:
        text = await resp.read()
        return text
    finally:
        await resp.release()

Changes

• Properly parse URL path in aiohttp.web.Request #489
• Add missing coroutine decorator, the code is await-compatible now

aiohttp 0.17.3

aiohttp 0.17.3 bugfix release

Changes

• Remove Content-Length header on compressed responses #450
• Support Python 3.5
• Improve performance of transport in-use list #472
• Fix connection pooling #473

aiohttp 0.17.2 release

Bugfix release

Changes

• Don't forget to pass data argument forward #462
• Fix multipart read bytes count #463