Python

Python Fundamentals

Learn the core concepts that make Python one of the most popular programming languages in the world.

🔤

Variables & Types

Python uses dynamic typing, making it easy to work with different data types like strings, numbers, lists, and dictionaries without explicit declarations.

🧠

Control Flow

Master conditional statements, loops, and logical operations to control program execution and create dynamic, responsive applications.

⚙️

Functions

Write reusable, modular code with functions. Learn about parameters, return values, and scope to build efficient programs.

📦

Data Structures

Explore Python's powerful built-in data structures: lists, tuples, dictionaries, and sets for organizing and manipulating data.

🔧

Object-Oriented

Understand classes, objects, inheritance, and encapsulation to write scalable and maintainable code using OOP principles.

📚

Libraries & Modules

Leverage Python's extensive ecosystem with powerful libraries for web development, data science, AI, and automation.

Code Examples

See Python in action with these practical examples that demonstrate key concepts and best practices.

Variables and Data Types

# Variables and basic data types
name = "Alice"
age = 25
height = 5.6
is_student = True

# Collections
languages = ["Python", "JavaScript", "Go"]
person = {
    "name": name,
    "age": age,
    "languages": languages
}

print(f"Hello, I'm {name} and I'm {age} years old!")

Control Flow and Functions

def classify_age(age):
    """Classify a person's life stage based on age."""
    if age < 13:
        return "Child"
    elif age < 20:
        return "Teenager"
    elif age < 65:
        return "Adult"
    else:
        return "Senior"

# Usage example
ages = [8, 16, 25, 70]
for age in ages:
    category = classify_age(age)
    print(f"Age {age}: {category}")

Working with Data Structures

# List comprehension and data manipulation
numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

# Filter even numbers and square them
even_squares = [x**2 for x in numbers if x % 2 == 0]

# Dictionary for counting occurrences
text = "python programming is awesome"
char_count = {}
for char in text:
    char_count[char] = char_count.get(char, 0) + 1

print(f"Even squares: {even_squares}")
print(f"Character frequency: {char_count}")

Interactive Python Terminal

Try Python code live! Type your commands below and see the results instantly.

python3 >>>

Try these examples:

• print("Hello, Python!")

• 2 + 2 * 3

• len("Python is awesome")

• [x**2 for x in range(5)]

• {"name": "Alice", "age": 25}

Test Your Knowledge

Put your Python skills to the test with this interactive quiz covering the fundamentals.

1. Which of the following is the correct way to define a variable in Python?

var name = "Alice"

name = "Alice"

string name = "Alice"

let name = "Alice"