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Microsoft Azure Event Hubs Client Library for Python

Project description

Microsoft Azure SDK for Event Hubs

A Python AMQP client for Azure Event Hubs the provides:

  • A sender to publish events to the Event Hubs service.
  • A receiver to read events from the Event Hubs service.

On Python 3.5 and above, it also includes:

  • An async sender and receiver that supports async/await methods.
  • An Event Processor Host module that manages the distribution of partition readers.


Wheels are provided for all major operating systems, so you can install directly with pip:

$ pip install azure-eventhub


Reference documentation is available at


  • ./examples/ - use sender to publish events
  • ./examples/ - use receiver to read events
  • ./examples/ - async/await support of a sender
  • ./examples/ - async/await support of a receiver
  • ./examples/ - event processor host


  • enable ‘azure.eventhub’ logger to collect traces from the library
  • enable ‘uamqp’ logger to collect traces from the underlying uAMQP library
  • enable AMQP frame level trace by setting debug=True when creating the Client

Provide Feedback

If you encounter any bugs or have suggestions, please file an issue in the Issues section of the project.


This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit

When you submit a pull request, a CLA-bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact with any additional questions or comments.

Release History

1.3.1 (2019-02-28)


  • Fixed bug where datetime offset filter was using a local timestamp rather than UTC.
  • Fixed stackoverflow error in continuous connection reconnect attempts.

1.3.0 (2019-01-29)


  • Added support for auto reconnect on token expiration and other auth errors (issue #89).


  • Added ability to create ServiceBusClient from an existing SAS auth token, including provding a function to auto-renew that token on expiry.
  • Added support for storing a custom EPH context value in checkpoint (PR #84, thanks @konstantinmiller)

1.2.0 (2018-11-29)

  • Support for Python 2.7 in azure.eventhub module (azure.eventprocessorhost will not support Python 2.7).
  • Parse EventData.enqueued_time as a UTC timestamp (issue #72, thanks @vjrantal)

1.1.1 (2018-10-03)

  • Fixed bug in Azure namespace package.

1.1.0 (2018-09-21)

  • Changes to AzureStorageCheckpointLeaseManager parameters to support other connection options (issue #61):
    • The storage_account_name, storage_account_key and lease_container_name arguments are now optional keyword arguments.
    • Added a sas_token argument that must be specified with storage_account_name in place of storage_account_key.
    • Added an endpoint_suffix argument to support storage endpoints in National Clouds.
    • Added a connection_string argument that, if specified, overrides all other endpoint arguments.
    • The lease_container_name argument now defaults to “eph-leases” if not specified.
  • Fix for clients failing to start if run called multipled times (issue #64).
  • Added convenience methods body_as_str and body_as_json to EventData object for easier processing of message data.

1.0.0 (2018-08-22)

  • API stable.
  • Renamed internal _async module to async_ops for docs generation.
  • Added optional auth_timeout parameter to EventHubClient and EventHubClientAsync to configure how long to allow for token negotiation to complete. Default is 60 seconds.
  • Added optional send_timeout parameter to EventHubClient.add_sender and EventHubClientAsync.add_async_sender to determine the timeout for Events to be successfully sent. Default value is 60 seconds.
  • Reformatted logging for performance.

0.2.0 (2018-08-06)

  • Stability improvements for EPH.
  • Updated uAMQP version.
  • Added new configuration options for Sender and Receiver; keep_alive and auto_reconnect. These flags have been added to the following:
    • EventHubClient.add_receiver
    • EventHubClient.add_sender
    • EventHubClientAsync.add_async_receiver
    • EventHubClientAsync.add_async_sender
    • EPHOptions.keey_alive_interval
    • EPHOptions.auto_reconnect_on_error

0.2.0rc2 (2018-07-29)

  • Breaking change EventData.offset will now return an object of type ~uamqp.common.Offset rather than str. The original string value can be retrieved from ~uamqp.common.Offset.value.
  • Each sender/receiver will now run in its own independent connection.
  • Updated uAMQP dependency to 0.2.0
  • Fixed issue with IoTHub clients not being able to retrieve partition information.
  • Added support for HTTP proxy settings to both EventHubClient and EPH.
  • Added error handling policy to automatically reconnect on retryable error.
  • Added keep-alive thread for maintaining an unused connection.

0.2.0rc1 (2018-07-06)

  • Breaking change Restructured library to support Python 3.7. Submodule async has been renamed and all classes from this module can now be imported from azure.eventhub directly.
  • Breaking change Removed optional callback argument from Receiver.receive and AsyncReceiver.receive.
  • Breaking change has been renamed to EventData.application_properties. This removes the potential for messages to be processed via callback for not yet returned in the batch.
  • Updated uAMQP dependency to v0.1.0
  • Added support for constructing IoTHub connections.
  • Fixed memory leak in receive operations.
  • Dropped Python 2.7 wheel support.

0.2.0b2 (2018-05-29)

  • Added namespace_suffix to EventHubConfig() to support national clouds.
  • Added device_id attribute to EventData to support IoT Hub use cases.
  • Added message header to workaround service bug for PartitionKey support.
  • Updated uAMQP dependency to vRC1.

0.2.0b1 (2018-04-20)

  • Updated uAMQP to latest version.
  • Further testing and minor bug fixes.

0.2.0a2 (2018-04-02)

  • Updated uAQMP dependency.

0.2.0a1 (unreleased)

  • Swapped out Proton dependency for uAMQP.

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