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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
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

Using multiple contexts for reading and writing files

It's common to need to convert data from one format to another. For example, we might have a complex web log that we'd like to convert to a simpler format.

See the Reading complex formats using regular expressions recipe for a complex web log format. We'd like to do this parsing just one time.

After that, we'd like to work with a simpler file format, more like the format shown in the Upgrading CSV from dict reader to namedtuple reader or Upgrading CSV from dict reader to namespace reader recipe. A file that's in CSV notation can be read and parsed with the csv module, simplifying the physical format considerations.

How can we convert from one format to another?

Getting ready

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