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Daniel Arbuckle???s Mastering Python

You're reading from   Daniel Arbuckle???s Mastering Python Build powerful Python applications

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Product type Paperback
Published in Jun 2017
Publisher Packt
ISBN-13 9781787283695
Length 274 pages
Edition 1st Edition
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Daniel Arbuckle Daniel Arbuckle
Author Profile Icon Daniel Arbuckle
Daniel Arbuckle
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Table of Contents (13) Chapters Close

Preface 1. Python Primer FREE CHAPTER 2. Setting Up 3. Making a Package 4. Basic Best Practices 5. Making a Command-Line Utility 6. Parallel Processing 7. Coroutines and Asynchronous I/O 8. Metaprogramming 9. Unit Testing 10. Reactive Programming 11. Microservices 12. Extension Modules and Compiled Code

Awaiting data availability

asyncio's future objects look and behave pretty much like concurrent.futures future objects, but they're not interchangeable. They have subtle differences in behavior and, of course, major differences in how they interact with the underlying systems, which are completely different. Still, each future is a way of referencing the value that may or may not have been computed yet and, if necessary, a way of waiting for that value to become available.

asyncio's future objects

The most commonly used feature of a future object is to wait for its value to be determined and then retrieve it. For asyncio's future objects, this is done by simply waiting for the future, as shown in the following...

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