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Modern Python Standard Library Cookbook

You're reading from   Modern Python Standard Library Cookbook Over 100 recipes to fully leverage the features of the standard library in Python

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Product type Paperback
Published in Aug 2018
Publisher Packt
ISBN-13 9781788830829
Length 366 pages
Edition 1st Edition
Languages
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Author (1):
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 Molina Molina
Author Profile Icon Molina
Molina
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Toc

Table of Contents (21) Chapters Close

Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
1. Containers and Data Structures FREE CHAPTER 2. Text Management 3. Command Line 4. Filesystem and Directories 5. Date and Time 6. Read/Write Data 7. Algorithms 8. Cryptography 9. Concurrency 10. Networking 11. Web Development 12. Multimedia 13. Graphical User Interfaces 14. Development Tools 1. Other Books You May Enjoy Index

Cleanup text


When analyzing user-provided text, we are frequently interested only in meaningful words; punctuation, spaces, and conjunctions might easily get in our way. Suppose you want to count word frequencies in a book, you don't want to end up with "world" and "world" being counted as two different words.

How to do it...

You have to perform the following steps:

  1. Supply the text you want to clean up:
txt="""And he looked over at the alarm clock,ticking on the chest of drawers. "God in Heaven!" he thought.It was half past six and the hands were quietly moving forwards,it was even later than half past, more like quarter to seven.Had the alarm clock not rung? He could see from the bed that ithad been set for four o'clock as it should have been; it certainly must have rung.Yes, but was it possible to quietly sleep through that furniture-rattling noise?True, he had not slept peacefully, but probably all the more deeply because of that."""
  1. We can rely on string.punctuation to know which characters...
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