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Learning Python Application Development

You're reading from  Learning Python Application Development

Product type Book
Published in Sep 2016
Publisher Packt
ISBN-13 9781785889196
Pages 454 pages
Edition 1st Edition
Languages
Author (1):
Ninad Sathaye Ninad Sathaye
Profile icon Ninad Sathaye

Table of Contents (18) Chapters

Learning Python Application Development
Credits
Disclaimers
About the Author
About the Reviewer
www.PacktPub.com
Preface
1. Developing Simple Applications 2. Dealing with Exceptions 3. Modularize, Package, Deploy! 4. Documentation and Best Practices 5. Unit Testing and Refactoring 6. Design Patterns 7. Performance – Identifying Bottlenecks 8. Improving Performance – Part One 9. Improving Performance – Part Two, NumPy and Parallelization 10. Simple GUI Applications Index

Parallelization with the multiprocessing module


Before jumping onto the discussion of the multiprocessing module, let's first understand what we mean by parallelization. This will be a very short introduction to parallelization, just enough to understand how to use some features of the multiprocessing module.

Introduction to parallelization

Imagine you are standing in a long queue at a checkout counter in a grocery store, waiting for your turn. Now, three more counters are opened to serve the customers and the existing queue is split. As a result, you can pay and get out of the store quickly.

Parallelization, in some sense, accomplishes similar results. In this example, each counter can be imagined as a separate process, carrying out independent tasks of accepting payments. The initial queue of the customers can be imagined as your program. This long queue is then divided into independent queues (or tasks), processing them parallely on separate counters (processes).

The Gold Hunt program we...

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