Welcome to Python
Understand what Python is, where it is used, and how this tutorial is organized.
Python is popular because it is readable, productive, and useful across automation, web development, data work, testing, scripting, and cloud engineering.
Start with the idea
A Python program is a set of instructions written in Python syntax. You write source code in a .py file, then the Python interpreter reads and executes those instructions. Start by thinking of Python as a precise way to describe steps to a computer.
Small working example
Run this example first. Do not change several things at once; confirm the basic behavior, then experiment.
print("Hello, Python!")A Python program is a set of instructions written in Python syntax. You write source code in a .py file, then the Python interpreter reads and executes those instructions. Start by thinking of Python as a precise way to describe steps to a computer.
- Python favors readable code.
- The interpreter runs Python source code.
- You do not need to know everything before you start.
Hello, Python!The example is intentionally small. Focus on the chapter’s main idea before adding extra syntax or framework code.
Common beginner mistake
Trying to memorize every feature before writing any code.
Learn one idea, run one small example, change it, and observe what happens. This tutorial is designed around that loop.
Quick recap
- Python favors readable code.
- The interpreter runs Python source code.
- You do not need to know everything before you start.
Try it yourself
These are deliberately small. If you can complete them without copying the example, you are ready to continue.
- Change the greeting and run it again.
- Write one sentence describing what you want Python to help you automate.