Python Tutorial

Welcome to the Python tutorial! Python is a widely-used programming language known for its simplicity and readability. It is used for various applications, including web development, data analysis, artificial intelligence, and more.

Getting Started

Before you start coding in Python, you need to install the Python interpreter. You can download it from the official Python website: Python Installer.

Once installed, you can open a terminal or command prompt and type python to start the Python interpreter.

Basic Syntax

Here's a simple example of Python code:

print("Hello, World!")

When you run this code, it will display the message "Hello, World!" in the terminal.

Variables

In Python, variables are used to store data. You can assign a value to a variable using the assignment operator (=):

x = 5
y = "Hello"

Lists

Lists are a collection of items in Python. You can create a list by enclosing items in square brackets:

my_list = [1, 2, 3, "Hello", 5.5]

Functions

Functions are blocks of code that perform a specific task. You can define a function using the def keyword:

def greet(name):
    return f"Hello, {name}!"

To call a function, simply use its name followed by parentheses:

print(greet("Alice"))

Modules

Python has a vast library of modules that provide additional functionality. You can import a module using the import keyword:

import math

You can then use the functions and classes provided by the module:

print(math.sqrt(16))