Lazy Looping in Python Tutorial

This tutorial was taught by Trey Hunner at PyCon 2019 and was taught as an O’Reilly live online training. If you would like Trey to host this workshop or other Python workshops at your company, you may contact him through his team training website.

If you enjoy the exercises in this workshop and you’d like to keep up your Python practice through weekly exercises, try Python Morsels, Trey’s online Python exercise service.

The video for this tutorial can be found as “Lazy Looping in Python: Making and Using Generators and Iterators” on YouTube.

Contents

• The Test Framework
  • Install Python
  • Download The Exercises
  • Where to Write Your Code
  • How to Run the Tests
  • Passing the Tests
• Comprehensions
  • For Loops
  • List Comprehensions
  • Conditional Filters
  • When do we use them?
  • List Comprehension Exercises
• Advanced For Loops
  • Advanced-stage For Loops
  • Chunked Looping
  • Converting to Comprehensions
• Generator Expressions
  • Generator Expressions
  • Piping Generators
  • Why Generators?
  • Generator Exercises
• Generator Functions
  • Grouping Lines
  • Grouping Efficiently
  • Generator Functions
  • Generator Objects
  • Generator Expressions
  • Generator Function Exercises
• The Iterator Protocol
  • Laziness
  • Single-use
  • Iterators
  • Iterator Protocol
  • How for loops work
  • Iteration
  • Iterables
  • iter and next
  • Iterator Exercises
• Lazy Looping Helpers
  • Iterators are Everywhere
  • Iterators in the Standard Library
  • Embracing Laziness
  • itertools Exercises
• Further Resources
• Exercise Answers & Tips

Exercises

Exercise test files

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