Python interface to Amazon Web Services
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boto 2.4.1 16-May-2012


Boto is a Python package that provides interfaces to Amazon Web Services. At the moment, boto supports:

  • Simple Storage Service (S3)
  • SimpleQueue Service (SQS)
  • Elastic Compute Cloud (EC2)
  • Mechanical Turk
  • SimpleDB
  • CloudFront
  • CloudWatch
  • AutoScale
  • Elastic Load Balancer (ELB)
  • Virtual Private Cloud (VPC)
  • Elastic Map Reduce (EMR)
  • Relational Data Service (RDS)
  • Simple Notification Server (SNS)
  • Google Storage
  • Identity and Access Management (IAM)
  • Route53 DNS Service (route53)
  • Simple Email Service (SES)
  • Flexible Payment Service (FPS)
  • CloudFormation
  • Amazon DynamoDB
  • Amazon SimpleWorkflow
  • CloudSearch
  • Marketplace Web Services

The goal of boto is to support the full breadth and depth of Amazon Web Services. In addition, boto provides support for other public services such as Google Storage in addition to private cloud systems like Eucalyptus, OpenStack and Open Nebula.

Boto is developed mainly using Python 2.6.6 and Python 2.7.1 on Mac OSX and Ubuntu Maverick. It is known to work on other Linux distributions and on Windows. Boto requires no additional libraries or packages other than those that are distributed with Python. Efforts are made to keep boto compatible with Python 2.5.x but no guarantees are made.

Special Note for Python 3.x Users

If you are interested in trying out boto with Python 3.x, check out the neo branch. This is under active development and the goal is a version of boto that works in Python 2.6, 2.7, and 3.x. Not everything is working just yet but many things are and it's worth a look if you are an active Python 3.x user.

Finding Out More About Boto

The main source code repository for boto can be found on The boto project uses the gitflow model for branching.

Online documentation is also available. The online documentation includes full API documentation as well as Getting Started Guides for many of the boto modules.

Boto releases can be found on the Python Cheese Shop.

Join our IRC channel #boto on FreeNode. Webchat IRC channel:

Getting Started with Boto

Your credentials can be passed into the methods that create connections. Alternatively, boto will check for the existance of the following environment variables to ascertain your credentials:


AWS_SECRET_ACCESS_KEY - Your AWS Secret Access Key

Credentials and other boto-related settings can also be stored in a boto config file. See this for details.

Copyright (c) 2006-2012 Mitch Garnaat <> Copyright (c) 2010-2011, Eucalyptus Systems, Inc. Copyright (c) 2012, Inc. or its affiliates. All rights reserved.