Learn Python
Python is a general-purpose programming language known for its clean, readable style and its use across the web, data science, automation, and more.
What is Python?
Python is a high-level, interpreted programming language created by Guido van Rossum and first released in 1991. It was designed with one core idea in mind: code should be easy for humans to read. Because of that focus on clarity, Python has become one of the most widely taught and widely used languages in the world, popular with beginners and professional engineers alike.
Being interpreted means your instructions are executed line by line by a program called the Python interpreter, rather than being compiled into machine code ahead of time. This makes it quick to write a little code and immediately see the result, which is ideal when you are learning or experimenting.
What can Python do?
- Build websites and back-end services that respond to web requests
- Analyze data, build charts, and train machine learning models
- Automate repetitive tasks such as renaming files or scraping web pages
- Connect to databases to read, store, and update information
- Handle large datasets and perform complex mathematical calculations
- Create quick scripts and prototypes to test an idea
Below is the classic first program in almost every language: printing a short message to the screen. In Python it takes a single line.
Example
print("Hello, World!")Why choose Python?
- Readable syntax that often looks close to plain English
- Cross-platform: the same code runs on Windows, macOS, and Linux
- A huge standard library plus thousands of free third-party packages
- A large, welcoming community and plenty of learning material
- Suited to many fields, so skills you learn here transfer widely
One thing that makes Python distinctive is that it uses indentation (leading spaces) to group code together, where many other languages use curly braces. This enforces a tidy visual structure and is something we will explore more in the syntax section.
Exercise: Python Introduction
What type of programming language is Python primarily classified as?
Frequently Asked Questions
- Is Python hard to learn for beginners?
- Python is usually the easiest first language. Its syntax reads close to English, it needs no semicolons or type declarations, and a working program can be three lines long. Most people write something useful within their first week.
- How long does it take to learn Python?
- Two to three months of regular practice covers the fundamentals: syntax, data types, loops, functions and files. Reaching a job-ready level with libraries and real projects usually takes six months to a year.
- What can you build with Python?
- Web backends with Django or Flask, data analysis and machine learning with pandas and scikit-learn, automation scripts, and testing tools. It is rarely used for mobile apps or browser front-ends.
- Should I learn Python 2 or Python 3?
- Python 3. Python 2 reached end of life in 2020 and receives no security fixes. Every current library targets Python 3, and tutorials written for Python 2 will not run without changes.
