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Modern Python Cookbook

You're reading from   Modern Python Cookbook The latest in modern Python recipes for the busy modern programmer

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Product type Paperback
Published in Nov 2016
Last Updated in Feb 2025
Publisher Packt
ISBN-13 9781786469250
Length 692 pages
Edition 1st Edition
Languages
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Toc

Table of Contents (12) Chapters Close

Preface 1. Numbers, Strings, and Tuples 2. Statements and Syntax FREE CHAPTER 3. Function Definitions 4. Built-in Data Structures – list, set, dict 5. User Inputs and Outputs 6. Basics of Classes and Objects 7. More Advanced Class Design 8. Input/Output, Physical Format, and Logical Layout 9. Testing 10. Web Services 11. Application Integration

Wrapping a program and checking the output

One common kind of automation involves running several programs, none of which are actually Python applications. In this case, it's impossible to rewrite each program to create a composite Python application. In order to properly aggregate the functionality, the other programs must be wrapped as a Python class or module to provide a higher level construct.

The use case for this is very similar to the use case for writing a shell script. The difference is that Python can be a better programming language than the OS's built-in shell languages.

In some cases, the advantage Python offers is the ability to analyze the output files. A Python program might transform, filter, or summarize the output from a subprocess.

How do we run other applications from within Python and process their output?

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