This document describes the current stable version of py-amqp (5.0). For development docs, go here.
Changes¶
py-amqp is fork of amqplib used by Kombu containing additional features and improvements. The previous amqplib changelog is here: http://code.google.com/p/py-amqplib/source/browse/CHANGES
5.0.1¶
- release-date
2020-09-06 6:10 P.M UTC+3:00
- release-by
Omer Katz
Require vine 5.0.0.
Contributed by Omer Katz
5.0.0¶
- release-date
2020-09-03 3:20 P.M UTC+3:00
- release-by
Omer Katz
Stop to use deprecated method ssl.wrap_socket.
Contributed by Hervé Beraud
5.0.0b1¶
- release-date
2020-09-01 6:20 P.M UTC+3:00
- release-by
Omer Katz
Dropped Python 3.5 support.
Contributed by Omer Katz
Removed additional compatibility code.
Contributed by Omer Katz
5.0.0a1¶
- release-date
2019-04-01 4:30 P.M UTC+3:00
- release-by
Omer Katz
Dropped Python 2.x support.
Contributed by Omer Katz
Dropped Python 3.4 support.
Contributed by Omer Katz
Depend on vine 5.0.0a1.
Contributed by Omer Katz
Code Cleanups & Improvements:
Omer Katz
2.6.1¶
- release-date
2020-07-31 10.30 P.M UTC+6:00
- release-by
Asif Saif Uddin
Fix buffer overflow in frame_writer after frame_max is increased. frame_writer
allocates a bytearray on intialization with a length based on the connection.frame_max value. If connection.frame_max is changed to a larger value, this causes an error like pack_into requires a buffer of at least 408736 bytes.
2.6.0¶
- release-date
20-06-01 12.00 P.M UTC+6:00
- release-by
Asif Saif Uddin
Implement speedups in cython (#311)
Updated some tests & code improvements
Separate logger for Connection.heartbeat_tick method
Cython generic content (#315)
Improve documentation a_global parameter of basic_qos() method.
Fix saving partial read buffer on windows during socket timeout. (#321)
Fix deserialization of long string field values that are not utf-8.
Added simple cythonization of abstract_channel.py
Speedups of serialization.py are more restrictive
2.5.2¶
- release-date
2019-09-30 19.00 P.M UTC+6:00
- release-by
Asif Saif Uddin
Fixed a channel issue against a connection already closed
Updated some tests & code improvements
2.5.1¶
- release-date
2019-08-14 22.00 P.M UTC+6:00
- release-by
Asif Saif Uddin
Ignore all methods except Close and Close-OK when channel/connection is closing
Fix faulty ssl sni intiation parameters (#283)
Undeprecate auto_delete flag for exchanges. (#287)
Improved tests and testing environments
2.5.0¶
- release-date
2019-05-30 17.30 P.M UTC+6:00
- release-by
Asif Saif Uddin
Drop Python 3.4
Add new platform
Numerious bug fixes
2.4.2¶
- release-date
2019-03-03 10:45 P.M UTC+2:00
- release-by
Omer Katz
Added support for the Cygwin platform
Contributed by Matus Valo
Correct offset incrementation when parsing bitmaps.
Contributed by Allan Simon & Omer Katz
Consequent bitmaps are now parsed correctly.
Previously the bit counter was reset with every bit. We now reset it once per 8 bits, when we consume the next byte.
Contributed by Omer Katz
Code Cleanups & Improvements:
Patrick Cloke
Matus Valo
Jeremiah Cooper
Omer Katz
Test Coverage & CI Improvements:
Matus Valo
Omer Katz
Jeremiah Cooper
Omer Katz
2.4.1¶
- release-date
2018-04-02 9:00 A.M UTC+2
- release-by
Omer Katz
To avoid breaking the API basic_consume() now returns the consumer tag instead of a tuple when nowait is True.
Fix contributed by Matus Valo
Fix crash in basic_publish when broker does not support connection.blocked capability.
Fix contributed by Matus Valo
read_frame() is now Python 3 compatible for large payloads.
Fix contributed by Antonio Ojea
Support float read_timeout/write_timeout.
Fix contributed by :github_user:`cadl`
Always treat SSLError timeouts as socket timeouts.
Fix contributed by Dirk Mueller and Antonio Ojea
Treat EWOULDBLOCK as timeout.
This fixes a regression on Windows from 2.4.0.
Fix contributed by Lucian Petrut
Test Coverage & CI Improvements:
Matus Valo
Antonio Ojea
2.4.0¶
- release-date
2018-13-01 1:00 P.M UTC+2
- release-by
Omer Katz
Fix inconsistent frame_handler return value.
The function returned by frame_handler is meant to return True once the complete message is received and the callback is called, False otherwise.
This fixes the return value for messages with a body split across multiple frames, and heartbeat frames.
Fix contributed by :github_user:`evanunderscore`
Don’t default content_encoding to utf-8 for bytes.
This is not an acceptable default as the content may not be valid utf-8, and even if it is, the producer likely does not expect the message to be decoded by the consumer.
Fix contributed by :github_user:`evanunderscore`
Fix encoding of messages with multibyte characters.
Body length was previously calculated using string length, which may be less than the length of the encoded body when it contains multibyte sequences. This caused the body of the frame to be truncated.
Fix contributed by :github_user:`evanunderscore`
Respect content_encoding when encoding messages.
Previously the content_encoding was ignored and messages were always encoded as utf-8. This caused messages to be incorrectly decoded if content_encoding is properly respected when decoding.
Fix contributed by :github_user:`evanunderscore`
Fix AMQP protocol header for AMQP 0-9-1.
Previously it was set to a different value for unknown reasons.
Fix contributed by Carl Hörberg
Add support for Python 3.7.
Change direct SSLSocket instantiation with wrap_socket. Added Python 3.7 to CI.
Fix contributed by Omer Katz and :github_user:`avborhanian`
Add support for field type “x” (byte array).
Fix contributed by Davis Kirkendall
If there is an exception raised on Connection.connect or Connection.close, ensure that the underlying transport socket is closed.
Adjust exception message on connection errors as well.
Fix contributed by :github_user:`tomc797`
TCP_USER_TIMEOUT has to be excluded from KNOWN_TCP_OPTS in BSD platforms.
Fix contributed by George Tantiras
Handle negative acknowledgments.
Fix contributed by Matus Valo
Added integration tests.
Fix contributed by Matus Valo
Fix basic_consume() with no consumer_tag provided.
Fix contributed by Matus Valo
Improved empty AMQPError string representation.
Fix contributed by Matus Valo
Drain events before publish.
This is needed to capture out of memory messages for clients that only publish. Otherwise on_blocked is never called.
Fix contributed by Jelte Fennema and Matus Valo
Don’t revive channel when connection is closing.
When connection is closing don’t raise error when Channel.Close method is received.
Fix contributed by Matus Valo
2.3.2¶
- release-date
2018-05-29 15:30 P.M UTC+3
- release-by
Omer Katz
Fix a regression that occurs when running amqp on OSX.
TCP_USER_TIMEOUT is not available when running on OSX. We now remove it from the set of known TCP options.
Fix contributed by Ofer Horowitz
2.3.1¶
- release-date
2018-05-28 16:30 P.M UTC+3
- release-by
Omer Katz
Fix a regression that occurs when running amqp under Python 2.7.
#182 mistakenly replaced a type check with unicode to string_t which is str in Python 2.7. text_t should have been used instead. This is now fixed and the tests have been adjusted to ensure this never regresses again.
Fix contributed by Omer Katz
2.3.0¶
- release-date
2018-05-27 16:30 P.M UTC+3
- release-by
Omer Katz
Cleanup TCP configurations across platforms and unified defaults.
Fix contributed by Dan Chowdhury
Fix for TypeError when setting socket options.
Fix contributed by Matthias Erll
Ensure that all call sites for decoding bytes to str allow surrogates, as the encoding mechanism now supports.
Fix contributed by Stephen Hatch
Don’t send AAAA DNS request when domain resolved to IPv4 address.
Fix contributed by Ihar Hrachyshka & Omer Katz
Support for EXTERNAL authentication and specific login_method.
Fix contributed by Matthias Erll
If the old python-gssapi library is installed the gssapi module will be available. We now ensure that we only use the new gssapi library.
Fix contributed by Jacopo Notarstefano
Code Cleanups & Test Coverage:
Omer Katz
Jon Dufresne
Matthias Urlichs
2.2.2¶
- release-date
2017-09-14 09:00 A.M UTC+2
- release-by
Omer Katz
Sending empty messages no longer hangs. Instead an empty message is sent correctly.(addresses #151)
Fix contributed by Christian Blades
Fixed compatibility issues in UTF-8 encoding behavior between Py2/Py3 (#164)
Fix contributed by Tyler James Harden
2.2.1¶
- release-date
2017-07-14 09:00 A.M UTC+2
- release-by
Omer Katz
Fix implicit conversion from bytes to string on the connection object. (Issue #155)
This issue has caused Celery to crash on connection to RabbitMQ.
Fix contributed by Omer Katz
2.2.0¶
- release-date
2017-07-12 10:00 A.M UTC+2
- release-by
Ask Solem
Fix random delays in task execution.
This is a bug that caused performance issues due to polling timeouts that occur when receiving incomplete AMQP frames. (Issues #3978 #3737 #3814)
Fix contributed by Robert Kopaczewski
Calling
conn.collect()
multiple times will no longer raise anAttributeError
when no channels exist.Fix contributed by Gord Chung
Fix compatibility code for Python 2.7.6.
Fix contributed by Jonathan Schuff
When running in Windows, py-amqp will no longer use the unsupported TCP option TCP_MAXSEG.
Fix contributed by Tony Breeds
Added support for setting the SNI hostname header.
The SSL protocol version is now set to SSLv23
Contributed by Dhananjay Sathe
Authentication mechanisms were refactored to be more modular. GSSAPI authentication is now supported.
Contributed by Alexander Dutton
Do not reconnect on collect.
Fix contributed by Gord Chung
2.1.4¶
- release-date
2016-12-14 03:40 P.M PST
- release-by
Ask Solem
Removes byte string comparison warnings when running under
python -b
.Fix contributed by Jon Dufresne.
Linux version parsing broke when the version included a ‘+’ character (Issue #119).
Now sets default TCP settings for platforms that support them (e.g. Linux).
Constant
Value
TCP_KEEPIDLE
60
TCP_KEEPINTVL
10
TCP_KEEPCNT
9
TCP_USER_TIMEOUT
1000
(1s)This will help detecting the socket being closed earlier, which is very important in failover and load balancing scenarios.
2.1.3¶
- release-date
2016-12-07 06:00 P.M PST
- release-by
Ask Solem
Fixes compatibility with Python 2.7.5 and below (Issue #107).
2.1.2¶
- release-date
2016-12-07 02:00 P.M PST
Linux: Now sets the
TCP_USER_TIMEOUT
flag if available for better failed connection detection.Contributed by Jelte Fennema.
The timeout is set to the
connect_timeout
value by default, but can also be specified by using thesocket_settings
argument toConnection
:from amqp import Connection from amqp.platform import TCP_USER_TIMEOUT conn = Connection(socket_settings={ TCP_USER_TIMEOUT: int(60 * 1000), # six minutes in ms. })
When using Kombu this can be specified as part of the
transport_options
:from amqp.platform import TCP_USER_TIMEOUT from kombu import Connection conn = Connection(transport_options={ 'socket_settings': { TCP_USER_TIMEOUT: int(60 * 1000), # six minutes in ms. }, })
Or when using Celery it can be specified using the
broker_transport_options
setting:from amqp.platform import TCP_USER_TIMEOUT from celery import Celery app = Celery() app.conf.update( broker_transport_options={ TCP_USER_TIMEOUT: int(60 * 1000), # six minutes in ms. } )
Python compatibility: Fixed compatibility when using the python
-b
flag.Fix contributed by Jon Dufresne.
2.1.1¶
- release-date
2016-10-13 06:36 P.M PDT
- release-by
Ask Solem
Requirements
Now depends on Vine 1.1.3.
Frame writer: Account for overhead when calculating frame size.
The client would crash if the message was within a certain size.
Fixed struct unicode problems (#108)
Standardize pack invocations on bytestrings.
Leave some literals as strings to enable interpolation.
Fix flake8 fail.
Fix contributed by Brendan Smithyman.
2.1.0¶
- release-date
2016-09-07 04:23 P.M PDT
- release-by
Ask Solem
Requirements
Now depends on Vine 1.1.2.
Now licensed under the BSD license!
Thanks to Barry Pederson for approving the license change, which unifies the license used across all projects in the Celery organization.
Datetimes in method frame arguments are now handled properly.
Fixed compatibility with Python <= 2.7.6
Frame_writer is no longer a generator, which should solve a rare “generator already executing” error (Issue #103).
2.0.3¶
- release-date
2016-07-11 08:00 P.M PDT
- release-by
Ask Solem
SSLTransport: Fixed crash “no attribute sslopts” when
ssl=True
(Issue #100).Fixed incompatible argument spec for
Connection.Close
(Issue #45).This caused the RabbitMQ server to raise an exception (INTERNAL ERROR).
Transport: No longer implements __del__ to make sure gc can collect connections.
It’s the responsibility of the caller to close connections, this was simply a relic from the amqplib library.
2.0.2¶
- release-date
2016-06-10 5:40 P.M PDT
- release-by
Ask Solem
Python 3: Installation requirements ended up being a generator and crashed setup.py.
Fix contributed by ChangBo Guo(gcb).
Python <= 2.7.7: struct.pack arguments cannot be unicode
Fix contributed by Alan Justino and Xin Li.
Python 3.4: Fixed use of bytes % int.
Fix contributed by Alan Justino.
Connection/Transport: Fixed handling of default port.
Fix contributed by Quentin Pradet.
2.0.1¶
- release-date
2016-05-31 6:20 P.M PDT
- release-by
Ask Solem
Adds backward compatibility layer for the 1.4 API.
Using the connection without calling
.connect()
first will now work, but a warning is emitted and the behavior is deprecated and will be removed in version 2.2.Fixes kombu 3.0/celery 3.1 compatibility (Issue #88).
Fix contributed by Bas ten Berge.
Fixed compatibility with Python 2.7.3 (Issue #85)
Fix contributed by Bas ten Berge.
Fixed bug where calling drain_events() with a timeout of 0 would actually block until a frame is received.
Documentation moved to http://amqp.readthedocs.io (Issue #89).
See https://blog.readthedocs.com/securing-subdomains/ for the reasoning behind this change.
Fix contributed by Adam Chainz.
2.0.0¶
- release-date
2016-05-26 1:44 P.M PDT
- release-by
Ask Solem
No longer supports Python 2.6
You must now call Connection.connect() to establish the connection.
The Connection constructor no longer has side effects, so you have to explicitly call connect first.
Library rewritten to anticipate async changes.
Connection now exposes underlying socket options.
This change allows to set arbitrary TCP socket options during the creation of the transport.
Those values can be set passing a dictionray where the key is the name of the parameter we want to set. The names of the keys are the ones reported above.
Contributed by Andrea Rosa, Dallas Marlow and Rongze Zhu.
Additional logging for heartbeats.
Contributed by Davanum Srinivas, and Dmitry Mescheryakov.
SSL: Fixes issue with remote connection hanging
Fix contributed by Adrien Guinet.
- SSL:
ssl
dict argument now supports thecheck_hostname
key (Issue #63).
Contributed by Vic Kumar.
- SSL:
Contributions by:
Adrien Guinet Andrea Rosa Artyom Koval Corey Farwell Craig Jellick Dallas Marlow Davanum Srinivas Federico Ficarelli Jared Lewis Rémy Greinhofer Rongze Zhu Yury Selivanov Vic Kumar Vladimir Bolshakov @lezeroq
1.4.9¶
- release-date
2016-01-08 5:50 P.M PST
- release-by
Ask Solem
Fixes compatibility with Linux/macOS instances where the
ctypes
module does not exist.Fix contributed by Jared Lewis.
1.4.8¶
- release-date
2015-12-07 12:25 A.M
- release-by
Ask Solem
abstract_channel.wait
now accepts a float timeout parameter expressedin seconds
Contributed by Goir.
1.4.7¶
- release-date
2015-10-02 05:30 P.M PDT
- release-by
Ask Solem
Fixed libSystem error on macOS 10.11 (El Capitan)
Fix contributed by Eric Wang.
channel.basic_publish
now raisesamqp.exceptions.NotConfirmed
onbasic.nack
.
- AMQP timestamps received are now converted from GMT instead of local time
(Issue #67).
Wheel package installation now supported by both Python 2 and Python3.
Fix contributed by Rémy Greinhofer.
1.4.6¶
- release-date
2014-08-11 06:00 P.M UTC
- release-by
Ask Solem
Now keeps buffer when socket times out.
Fix contributed by Artyom Koval.
Adds
Connection.Transport
attribute that can be used to specify a different transport implementation.Contributed by Yury Selivanov.
1.4.5¶
- release-date
2014-04-15 09:00 P.M UTC
- release-by
Ask Solem
Can now deserialize more AMQP types.
Now handles types
short string
,short short int
,short short unsigned int
,short int
,short unsigned int
,long unsigned int
,long long int
,long long unsigned int
andfloat
which for some reason was missing, even in the original amqplib module.SSL: Workaround for Python SSL bug.
A bug in the python socket library causes
ssl.read/write()
on a closed socket to raiseAttributeError
instead ofIOError
.Fix contributed by Craig Jellick.
Transport.__del_
now handles errors occurring at late interpreter shutdown (Issue #36).
1.4.4¶
- release-date
2014-03-03 04:00 P.M UTC
- release-by
Ask Solem
SSL transport accidentally disconnected after read timeout.
Fix contributed by Craig Jellick.
1.4.3¶
- release-date
2014-02-09 03:00 P.M UTC
- release-by
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Fixed bug where more data was requested from the socket than was actually needed.
Contributed by Ionel Cristian Mărieș.
1.4.2¶
- release-date
2014-01-23 05:00 P.M UTC
Heartbeat negotiation would use heartbeat value from server even if heartbeat disabled (Issue #31).
1.4.1¶
- release-date
2014-01-14 09:30 P.M UTC
- release-by
Ask Solem
Fixed error occurring when heartbeats disabled.
1.4.0¶
- release-date
2014-01-13 03:00 P.M UTC
- release-by
Ask Solem
Heartbeat implementation improved (Issue #6).
The new heartbeat behavior is the same approach as taken by the RabbitMQ java library.
This also means that clients should preferably call the
heartbeat_tick
method more frequently (like every second) instead of using the oldrate
argument (which is now ignored).Heartbeat interval is negotiated with the server.
Some delay is allowed if the heartbeat is late.
Monotonic time is used to keep track of the heartbeat instead of relying on the caller to call the checking function at the right time.
Contributed by Dustin J. Mitchell.
NoneType is now supported in tables and arrays.
Contributed by Dominik Fässler.
SSLTransport: Now handles
ENOENT
.Fix contributed by Adrien Guinet.
1.3.3¶
- release-date
2013-11-11 03:30 P.M UTC
- release-by
Ask Solem
SSLTransport: Now keeps read buffer if an exception is raised (Issue #26).
Fix contributed by Tommie Gannert.
1.3.2¶
- release-date
2013-10-29 02:00 P.M UTC
- release-by
Ask Solem
Message.channel is now a channel object (not the channel id).
Bug in previous version caused the socket to be flagged as disconnected at EAGAIN/EINTR.
1.3.1¶
- release-date
2013-10-24 04:00 P.M UTC
- release-by
Ask Solem
Now implements Connection.connected (Issue #22).
Fixed bug where
str(AMQPError)
did not return string.
1.3.0¶
- release-date
2013-09-04 02:39 P.M UTC
- release-by
Ask Solem
Now sets
Message.channel
on delivery (Issue #12)amqplib used to make the channel object available as
Message.delivery_info['channel']
, but this was removed in py-amqp. librabbitmq setsMessage.channel
, which is a more reasonable solution in our opinion as that keeps the delivery info intact.New option to wait for publish confirmations (Issue #3)
There is now a new Connection
confirm_publish
that will force anybasic_publish
call to wait for confirmation.Enabling publisher confirms like this degrades performance considerably, but can be suitable for some applications and now it’s possible by configuration.
queue_declare
now returns named tuple of typebasic_declare_ok_t
.Supporting fields:
queue
,message_count
, andconsumer_count
.Contents of
Channel.returned_messages
is now named tuples.Supporting fields:
reply_code
,reply_text
,exchange
,routing_key
, andmessage
.Sockets now set to close on exec using the
FD_CLOEXEC
flag.Currently only supported on platforms supporting this flag, which does not include Windows.
Contributed by Tommie Gannert.
1.2.1¶
- release-date
2013-08-16 05:30 P.M UTC
- release-by
Ask Solem
Adds promise type:
amqp.utils.promise()
Merges fixes from 1.0.x
1.2.0¶
- release-date
2012-11-12 04:00 P.M UTC
- release-by
Ask Solem
New exception hierarchy:
AMQPError
ConnectionError
RecoverableConnectionError
ConsumerCancelled
ConnectionForced
ResourceError
IrrecoverableConnectionError
ChannelNotOpen
FrameError
FrameSyntaxError
InvalidCommand
InvalidPath
NotAllowed
UnexpectedFrame
AMQPNotImplementedError
InternalError
ChannelError
RecoverableChannelError
ContentTooLarge
NoConsumers
ResourceLocked
IrrecoverableChannelError
AccessRefused
NotFound
PreconditionFailed
1.1.0¶
- release-date
2013-11-08 10:36 P.M UTC
- release-by
Ask Solem
No longer supports Python 2.5
Fixed receiving of float table values.
Now Supports Python 3 and Python 2.6+ in the same source code.
Python 3 related fixes.
1.0.13¶
- release-date
2013-07-31 04:00 P.M BST
- release-by
Ask Solem
Fixed problems with the SSL transport (Issue #15).
Fix contributed by Adrien Guinet.
Small optimizations
1.0.12¶
- release-date
2013-06-25 02:00 P.M BST
- release-by
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Fixed another Python 3 compatibility problem.
1.0.11¶
- release-date
2013-04-11 06:00 P.M BST
- release-by
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Fixed Python 3 incompatibility in
amqp/transport.py
.
1.0.10¶
- release-date
2013-03-21 03:30 P.M UTC
- release-by
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Fixed Python 3 incompatibility in
amqp/serialization.py
. (Issue #11).
1.0.9¶
- release-date
2013-03-08 10:40 A.M UTC
- release-by
Ask Solem
Publisher ack callbacks should now work after typo fix (Issue #9).
channel(explicit_id)
will now claim that id from the array of unused channel ids.Fixes Jython compatibility.
1.0.7¶
- release-date
2013-02-08 01:00 P.M UTC
- release-by
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Workaround for bug on some Python 2.5 installations where (2**32) is 0.
Can now serialize the ARRAY type.
Contributed by Adam Wentz.
Fixed tuple format bug in exception (Issue #4).
1.0.6¶
- release-date
2012-11-29 01:14 P.M UTC
- release-by
Ask Solem
Channel.close
is now ignored if the connection attribute is None.
1.0.5¶
- release-date
2012-11-21 04:00 P.M UTC
- release-by
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Channel.basic_cancel
is now ignored if the channel was already closed.Channel.events
is now a dict of sets:>>> channel.events['basic_return'].add(on_basic_return) >>> channel.events['basic_return'].discard(on_basic_return)
1.0.3¶
- release-date
2012-11-12 04:00 P.M UTC
- release-by
Ask Solem
Now can also handle float in headers/tables when receiving messages.
Now uses
array.array
to keep track of unused channel ids.The
METHOD_NAME_MAP
has been updated for amqp/0.9.1 and Rabbit extensions.Removed a bunch of accidentally included images.
1.0.2¶
- release-date
2012-11-06 05:00 P.M UTC
- release-by
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Now supports float values in headers/tables.
1.0.1¶
- release-date
2012-11-05 01:00 P.M UTC
- release-by
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Connection errors no longer includes
AttributeError
.Fixed problem with using the SSL transport in a non-blocking context.
Fix contributed by Mher Movsisyan.
1.0.0¶
- release-date
2012-11-05 01:00 P.M UTC
- release-by
Ask Solem
Channels are now restored on channel error, so that the connection does not have to closed.
Version 0.9.4¶
Adds support for
exchange_bind
andexchange_unbind
.Contributed by Rumyana Neykova
Fixed bugs in funtests and demo scripts.
Contributed by Rumyana Neykova
Version 0.9.3¶
Fixed bug that could cause the consumer to crash when reading large message payloads asynchronously.
Serialization error messages now include the invalid value.
Version 0.9.2¶
Consumer cancel notification support was broken (Issue #1)
Fix contributed by Andrew Grangaard
Version 0.9.1¶
Supports draining events from multiple channels (
Connection.drain_events
)Support for timeouts
- Support for heartbeats
Connection.heartbeat_tick(rate=2)
must called at regular intervals (half of the heartbeat value if rate is 2).Or some other scheme by using
Connection.send_heartbeat
.
- Supports RabbitMQ extensions:
- Consumer Cancel Notifications
by default a cancel results in
ChannelError
being raisedbut not if a
on_cancel
callback is passed tobasic_consume
.
- Publisher confirms
Channel.confirm_select()
enables publisher confirms.Channel.events['basic_ack'].append(my_callback)
adds a callback to be called when a message is confirmed. This callback is then called with the signature(delivery_tag, multiple)
.
Support for
basic_return
- Uses AMQP 0-9-1 instead of 0-8.
Channel.access_request
andticket
arguments to methods removed.Supports the
arguments
argument tobasic_consume
.internal
argument toexchange_declare
removed.auto_delete
argument toexchange_declare
deprecatedinsist
argument toConnection
removed.Channel.alerts
has been removed.Support for
Channel.basic_recover_async
.Channel.basic_recover
deprecated.
- Exceptions renamed to have idiomatic names:
AMQPException
->AMQPError
AMQPConnectionException
-> ConnectionError``AMQPChannelException
-> ChannelError``Connection.known_hosts
removed.Connection
no longer supports redirects.exchange
argument toqueue_bind
can now be empty to use the “default exchange”.
Adds
Connection.is_alive
that tries to detect whether the connection can still be used.Adds
Connection.connection_errors
and.channel_errors
, a list of recoverable errors.Exposes the underlying socket as
Connection.sock
.Adds
Channel.no_ack_consumers
to keep track of consumer tags that set the no_ack flag.Slightly better at error recovery