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Course

Software Engineering Principles in Python

BasicSkill Level

4.7+

Updated 11/2025

Learn about modularity, documentation, and automated testing to help you solve data science problems more quickly and reliably.

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PythonProgramming4 hr15 videos51 Exercises4,100 XP64,525Statement of Accomplishment

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Course Description

Data scientists can experience huge benefits by learning concepts from the field of software engineering, allowing them to more easily reutilize their code and share it with collaborators. In this course, you'll learn all about the important ideas of modularity, documentation, & automated testing, and you'll see how they can help you solve Data Science problems quicker and in a way that will make future you happy. You'll even get to use your acquired software engineering chops to write your very own Python package for performing text analytics.

Prerequisites

Introduction to Functions in Python

1

Software Engineering & Data Science

Why should you as a Data Scientist care about Software Engineering concepts? Here we'll cover specific Software Engineering concepts and how these important ideas can revolutionize your Data Science workflow!

Python, data science, & software engineering

The big ideas

Python modularity in the wild

Introduction to packages & documentation

Installing packages with pip

Leveraging documentation

Conventions and PEP 8

Using pycodestyle

Conforming to PEP 8

PEP 8 in documentation

2

Writing a Python Module

Become a fully fledged Python package developer by writing your first package! You'll learn how to structure and write Python code that you can be installed, used, and distributed just like famous packages such as NumPy and Pandas.

Writing your first package

Minimal package requirements

Naming packages

Recognizing packages

Adding functionality to packages

Adding functionality to your package

Using your package's new functionality

Making your package portable

Writing requirements.txt

Installing package requirements

Creating setup.py

Listing requirements in setup.py

3

Utilizing Classes

Object Oriented Programming is a staple of Python development. By leveraging classes and inheritance your Python package will become a much more powerful tool for your users.

Adding classes to a package

Writing a class for your package

Using your package's class

Adding functionality to classes

Writing a non-public method

Using your class's functionality

Classes and the DRY principle

Using inheritance to create a class

Adding functionality to a child class

Using your child class

Multilevel inheritance

Exploring with dir and help

Creating a grandchild class

Using inherited methods

4

Maintainability

You've now written a fully functional Python package for text analysis! To make maintaining your project as easy as possible we'll leverage best practices around concepts such as documentation and unit testing.

Documentation

Identifying good comments

Identifying proper docstrings

Writing docstrings

Readability counts

Using good function names

Using good variable names

Refactoring for readability

Unit testing

Using doctest

Using pytest

Documentation & testing in practice

Documenting classes for Sphinx

Identifying tools

Final Thoughts

Software Engineering Principles in Python

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Martyna

6 hours ago

Haitham

7 hours ago

FAISAL

16 hours ago

Bekzod

2 days ago

well, this was to abstract. I didn't quite get the core idea of classes

Pius

2 days ago

Cherif

3 days ago

Martyna

Pius

Cherif

FAQs

Is this course suitable for beginners?

It assumes familiarity with Python basics but no prior software engineering experience. The course introduces concepts like modularity, classes, and unit testing from the ground up in a data science context.

What will I be able to build by the end of this course?

You will have written a complete Python package for text analytics, structured so it can be installed, shared, and distributed like NumPy or pandas.

Which software engineering concepts does this course cover?

The course covers modularity, object-oriented programming with classes and inheritance, documentation best practices, and automated unit testing.

Does the course cover how to structure a Python package?

Yes. Chapter 2 walks through how to organize and write Python code as an installable package, following the same conventions used by widely used libraries like NumPy and pandas.

How does the course approach documentation and testing?

Chapter 4 introduces unit testing and documentation best practices as tools for keeping your package easy to maintain and update over time.

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