Python 2 and 3 Compatibility

1. Front Matter

   Pages i-xxix

   PDF

2. Printing and Backtick repr

   • Joannah Nanjekye

   Pages 1-10

3. Numbers

   • Joannah Nanjekye

   Pages 11-19

4. Setting Metaclasses

   • Joannah Nanjekye

   Pages 21-30

5. Strings and Bytes

   • Joannah Nanjekye

   Pages 31-46

6. Package Imports

   • Joannah Nanjekye

   Pages 47-52

7. Exceptions

   • Joannah Nanjekye

   Pages 53-58

8. HTML Processing

   • Joannah Nanjekye

   Pages 59-63

9. Working with Files

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   Pages 65-68

10. Custom Behavior of Classes

    • Joannah Nanjekye

    Pages 69-79

11. Collections and Iterators

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    Pages 81-94

12. More Built-ins

    • Joannah Nanjekye

    Pages 95-109

13. Standard Library Modules

    • Joannah Nanjekye

    Pages 111-125

14. Back Matter

    Pages 127-129

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Discover clean ways to write code that will run on both Python 2 and 3.This book is tutorial-oriented with detailed examples of how to convert existing Python 2-compatible code to code that will run reliably on both Python 2 and 3. 

Although Python 3 is considered the future of Python, Python 2.x will be maintained for several more years, alongside Python 3, which is not backwards compatible. For those who need to support both versions, this book guides you through the process. 

Python 2 and 3 Compatibility explains the syntactical differences between Python 2 and 3, and how to use Python packages Python-Future and Six to implement neutral compatibility. Developers working on either small, medium, or large projects will appreciate the author's clear explanations, detailed examples, and clean techniques to help them extend support for both versions to their existing Python 2-compatible projects.

What You'll Learn

• Understand the syntactical differences between Python 2 and 3
• Use the Six and Future libraries
• Review the new features in Python 3
• Choose which Python versions to support when doing neutral support
• Decide on whether to port or provide support for both versions

Who This Book Is For

Professional Python developers and enthusiasts that want to implement Python 3 support for their existing Python 2 compatible code.

• Python 3
• Compatibility
• Python-Future
• Python Six Library
• Programming
• package
• Library modules
• Classes
• Python 2 and 3
• Python Neutral Support

• Kampala, Uganda

  Joannah Nanjekye

Joannah Nanjekye is from Uganda, a software engineer, conference speaker and a proud FOSS (Free and Open Source Software) contributor who presented at PyCon ZA in South Africa in 2016 and 2017. She shares her knowledge on implementation for Python 2 and 3 support from experiences on her work on open source projects. She worked as software developer for Laboremus Uganda and Fintech Uganda before pursuing a career as Aeronautical Engineer with a bias in Avionics at Kenya Aeronautical College. She is a proud Rails Girls Summer of Code alumnae and was mentored into FOSS development during her time as a scholar.