Gain insights into Pythonic programming techniques. Learn about documentation, data types, safety, performance, and function design to write fast, maintainable, and correct Python code.

python3.8.tar.gz

Python3.8

Python3.8Code

This course is an invaluable resource for anyone who wants to learn the correct Pythonian way of writing highly performant code that is easy to maintain and grow.

The course is divided into six chapters: documentation tips, data types/data structures tips, safety tips, performance tips, function design tips, and general tips. Throughout each chapter, you will get hands-on experience working with real Python code to help ingrain each concept.

By the end, you will know how to make your programs correct, safe, fast, and easy to maintain.

Pythonic Programming Tips for Software Engineers

# Problem statement
This chapter explains how to use dictionaries for fast lookup of items (words, in our case). Keep a dictionary of the words that have been seen before, with their numbers as values. When adding a new word to the dictionary, assign the next number to it. Use the dictionary and formatted string to replace the known words with their numbers.

# Task
Given text as a string, replace all duplicate occurrences of a word after the first with a unique number that represents that word, prefixed with the hash sign (`#`).

# Example
The input `"I am Sam I am Sam Sam I am"` will become `"I am Sam #0 #1 #2 #2 #0 #1"`. 

> **Note:** Assume that the `text` consists only of letters and spaces, with no punctuation.



Replace duplicate words with their numbers.

Introduction

Documentation Tips

General Tips

Data Types and Data Structures Tips

Function Tips

Performance Tips

Safety Tips

Wrapping Up

Exercise 5: Eliminate Duplicates

Problem statement