Low-level AMQP client for Python (fork of amqplib).
Project description
- Version:
2.4.0
- Web:
- Download:
- Source:
- Keywords:
amqp, rabbitmq
About
This is a fork of amqplib which was originally written by Barry Pederson. It is maintained by the Celery project, and used by kombu as a pure python alternative when librabbitmq is not available.
This library should be API compatible with librabbitmq.
Differences from amqplib
Supports draining events from multiple channels (Connection.drain_events)
Support for timeouts
Channels are restored after channel error, instead of having to close the connection.
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 raised
but not if a on_cancel callback is passed to basic_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).
- Exchange-to-exchange bindings: exchange_bind / exchange_unbind.
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).
- Authentication Failure Notifications
Instead of just closing the connection abruptly on invalid credentials, py-amqp will raise an AccessRefused error when connected to rabbitmq-server 3.2.0 or greater.
Support for basic_return
- Uses AMQP 0-9-1 instead of 0-8.
Channel.access_request and ticket arguments to methods removed.
Supports the arguments argument to basic_consume.
internal argument to exchange_declare removed.
auto_delete argument to exchange_declare deprecated
insist argument to Connection 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 to queue_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
Further
Differences between AMQP 0.8 and 0.9.1
AMQP 0.9.1 Quick Reference
RabbitMQ Extensions
For more information about AMQP, visit
For other Python client libraries see:
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