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/opt/imh-python/lib/python3.9/site-packages/amqp-5.3.1.dist-info

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Metadata-Version: 2.1
Name: amqp
Version: 5.3.1
Summary: Low-level AMQP client for Python (fork of amqplib).
Home-page: http://github.com/celery/py-amqp
Author: Barry Pederson
Author-email: auvipy@gmail.com
Maintainer: Asif Saif Uddin, Matus Valo
License: BSD
Keywords: amqp rabbitmq cloudamqp messaging
Platform: any
Classifier: Development Status :: 5 - Production/Stable
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 3 :: Only
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Programming Language :: Python :: Implementation :: CPython
Classifier: Programming Language :: Python :: Implementation :: PyPy
Classifier: License :: OSI Approved :: BSD License
Classifier: Intended Audience :: Developers
Classifier: Operating System :: OS Independent
Requires-Python: >=3.6
Description-Content-Type: text/x-rst
License-File: LICENSE
Requires-Dist: vine<6.0.0,>=5.0.0

=====================================================================
 Python AMQP 0.9.1 client library
=====================================================================

:Version: 5.3.1
:Web: https://amqp.readthedocs.io/
:Download: https://pypi.org/project/amqp/
:Source: http://github.com/celery/py-amqp/
: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`_.

.. _amqplib: https://pypi.org/project/amqplib/
.. _Celery: http://celeryproject.org/
.. _kombu: https://kombu.readthedocs.io/
.. _librabbitmq: https://pypi.org/project/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

Quick overview
==============

Simple producer publishing messages to ``test`` queue using default exchange:

.. code:: python

import amqp

with amqp.Connection('broker.example.com') as c:
        ch = c.channel()
        ch.basic_publish(amqp.Message('Hello World'), routing_key='test')

Producer publishing to ``test_exchange`` exchange with publisher confirms enabled and using virtual_host ``test_vhost``:

.. code:: python

import amqp

with amqp.Connection(
        'broker.example.com', exchange='test_exchange',
        confirm_publish=True, virtual_host='test_vhost'
    ) as c:
        ch = c.channel()
        ch.basic_publish(amqp.Message('Hello World'), routing_key='test')

Consumer with acknowledgments enabled:

.. code:: python

import amqp

with amqp.Connection('broker.example.com') as c:
        ch = c.channel()
        def on_message(message):
            print('Received message (delivery tag: {}): {}'.format(message.delivery_tag, message.body))
            ch.basic_ack(message.delivery_tag)
        ch.basic_consume(queue='test', callback=on_message)
        while True:
            c.drain_events()

Consumer with acknowledgments disabled:

.. code:: python

import amqp

with amqp.Connection('broker.example.com') as c:
        ch = c.channel()
        def on_message(message):
            print('Received message (delivery tag: {}): {}'.format(message.delivery_tag, message.body))
        ch.basic_consume(queue='test', callback=on_message, no_ack=True)
        while True:
            c.drain_events()

Speedups
========

This library has **experimental** support of speedups. Speedups are implemented using Cython. To enable speedups, ``CELERY_ENABLE_SPEEDUPS`` environment variable must be set during building/installation.
Currently speedups can be installed:

1. using source package (using ``--no-binary`` switch):

.. code:: shell

CELERY_ENABLE_SPEEDUPS=true pip install --no-binary :all: amqp

2. building directly source code:

.. code:: shell

CELERY_ENABLE_SPEEDUPS=true python setup.py install

Further
=======

- Differences between AMQP 0.8 and 0.9.1

http://www.rabbitmq.com/amqp-0-8-to-0-9-1.html

- AMQP 0.9.1 Quick Reference

http://www.rabbitmq.com/amqp-0-9-1-quickref.html

- RabbitMQ Extensions

http://www.rabbitmq.com/extensions.html

- For more information about AMQP, visit

http://www.amqp.org

- For other Python client libraries see:

http://www.rabbitmq.com/devtools.html#python-dev

.. |build-status| image:: https://github.com/celery/py-amqp/actions/workflows/ci.yaml/badge.svg
    :alt: Build status
    :target: https://github.com/celery/py-amqp/actions/workflows/ci.yaml

.. |coverage| image:: https://codecov.io/github/celery/py-amqp/coverage.svg?branch=main
    :target: https://codecov.io/github/celery/py-amqp?branch=main

.. |license| image:: https://img.shields.io/pypi/l/amqp.svg
    :alt: BSD License
    :target: https://opensource.org/licenses/BSD-3-Clause

.. |wheel| image:: https://img.shields.io/pypi/wheel/amqp.svg
    :alt: Python AMQP can be installed via wheel
    :target: https://pypi.org/project/amqp/

.. |pyversion| image:: https://img.shields.io/pypi/pyversions/amqp.svg
    :alt: Supported Python versions.
    :target: https://pypi.org/project/amqp/

.. |pyimp| image:: https://img.shields.io/pypi/implementation/amqp.svg
    :alt: Support Python implementations.
    :target: https://pypi.org/project/amqp/

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============================================

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