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Introduction
Real world Python

Introduction to Python Programming

Understand the fundamentals of Python, install it, and write your first program.

By Kevin McAleer,    3 Minutes

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Introduction

Python is a powerful and versatile programming language, suitable for various applications ranging from simple scripts to large-scale software. This lesson introduces Python programming and guides you on installing Python and writing your first program.

Learning Objectives

  • Understand why Python is a beneficial programming language to learn.
  • Successfully install Python on your computer.
  • Write and execute your first Python program.

Why Python?

Python is one of the most popular programming languages in the world due to its simplicity and readability. It’s used in various fields such as web development, data analysis, AI, and machine learning. Here are some reasons to learn Python:

  1. Simplicity: Python’s syntax is designed to be readable and straightforward, which makes it an excellent language for beginner programmers.
  2. Versatility: From web and game development to machine learning, Python can do it all.
  3. Community: Python has a large and active community, which means you’ll find plenty of resources and answers to your coding problems.
  4. Career Opportunities: Python developers are in demand and are often well-compensated.

Installing Python

Before you can start coding in Python, you need to install the Python interpreter on your computer. Follow these steps to install Python:

  1. Visit the official Python website.
  2. Download the latest version available for your operating system.
  3. Run the installer and follow the prompts to install Python. Make sure to check the box that says “Add Python to PATH” before completing the installation.

Setting Up the Python Environment

The next step is to set up your Python development environment. You’ll need a text editor or an Integrated Development Environment (IDE) to write your code. VS Code, PyCharm and Thonny are great options.

Your First Python Program

Let’s write your first Python program, a classic ‘Hello, World!’ example:

print("Hello, World!")

To run this program:

  1. Open your IDE or text editor.
  2. Copy and paste the code into a new file.
  3. Save the file with a .py extension, such as hello_world.py.
  4. Open a terminal/command prompt.
  5. Navigate to the directory where you saved hello_world.py.
  6. Type python hello_world.py and press enter to run the program.

You should see Hello, World! printed in the terminal.

Summary

In this lesson, you learned why Python is an essential language to learn, how to install Python, and how to write your first Python program. Great job getting started!

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