Python Basics Tutorial

Welcome to the Python Basics Tutorial! This guide will help you get started with one of the most popular programming languages in the world. Python is known for its simplicity and readability, making it an excellent choice for beginners and experienced programmers alike.

Getting Started

Before you begin, make sure you have Python installed on your system. You can download and install Python from the official website: Python.org.

Basic Syntax

Python uses indentation to define the scope of code blocks. Here's a simple example:

# Print "Hello, World!" to the console
print("Hello, World!")

Variables and Data Types

Python has several built-in data types, such as integers, floats, strings, and booleans. You can declare a variable and assign a value to it like this:

# Declare and assign a variable
age = 25

# Print the variable value
print(age)

Control Structures

Python has a variety of control structures, including if-else statements and loops. Here's an example of an if-else statement:

# Check if a number is even or odd
number = 10

if number % 2 == 0:
    print("The number is even.")
else:
    print("The number is odd.")

Functions

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

# Define a function to add two numbers
def add_numbers(a, b):
    return a + b

# Call the function and print the result
result = add_numbers(5, 3)
print(result)

Modules and Packages

Python has a vast ecosystem of modules and packages that you can use to extend the functionality of your code. You can import a module using the import keyword:

# Import the math module
import math

# Use a function from the math module
print(math.sqrt(16))