Python Basics

Introduction to Python

Python is a high-level, interpreted programming language known for its simplicity and readability. It's widely used for web development, data analysis, artificial intelligence, and more.

print("Hello, World!")

This simple line demonstrates Python's straightforward syntax for outputting text to the console.

Variables and Data Types

Python is dynamically typed, meaning you don't need to declare variable types explicitly. Common data types include:

                        # Integer

                        age = 25

                        # Float

                        price = 19.99

                        # String

                        name = "Alice"

                        # Boolean

                        is_active = True

                        # List

                        colors = ["red", "green", "blue"]

                        # Dictionary

                        person = {"name": "Bob",
                        "age": 30}

Operators

Python supports various operators for performing operations on variables and values:

Arithmetic

+, -, *, /, %, **, //

Comparison

==, !=, >, <,>=, <=< /p>

Logical

and, or, not

                        # Arithmetic example

                        result = 10 + 5 * 2 # result will be
                            20

                        # Comparison example

                        if age >= 18:

                            print("Adult")

Control Flow

Python uses indentation to define blocks of code for control structures:

                        if x > 0:

                            print("Positive")

                        elif x == 0:

                            print("Zero")

                        else:

                            print("Negative")

                        # For loop example

                        for i in range(5):

                            print(i)

                        # While loop example

                        count = 0

                        while count < 5:

                                print(count)

                                count += 1

Functions

Functions are reusable blocks of code that perform a specific task:

                        def greet(name):

                            return f"Hello, {name}!"

                        # Call the function

                        message = greet("Alice")

                        print(message) # Output: Hello,
                            Alice!

YouTube Learning Resources

Boost your Python skills with these handpicked video resources:

Complete Courses

Full Python courses for comprehensive learning:

freeCodeCamp (6-hour Python course) Programming with Mosh (Python for Beginners) Corey Schafer (Complete Python Playlist)

Project Tutorials

Learn by building real projects:

12 Beginner Projects (freeCodeCamp) Python Game Development (Tech With Tim) Data Science Project (CS Dojo)

Concept Explanations

In-depth explanations of Python concepts:

Python OOP (Corey Schafer) Decorators Explained (Real Python) Python Magic Methods (NeuralNine)

Practice Videos

Exercise and problem-solving videos:

Python Exercises (Coding with John) Practice Problems (Tech With Tim) Python Challenges (Bro Code)