Python Course #1: Welcome to Python - Your First Step into Programming

Lesson 1: Welcome to Python Programming

Your journey to becoming a Python developer starts here - No prior coding knowledge needed!

Beginner Level | 10 min read

What is Python?

Python is a powerful, yet easy-to-learn programming language that's perfect for beginners. It's used by companies like Google, Netflix, Instagram, and NASA!

Why Python is perfect for you:

• Easy to read and write - looks like plain English
• Versatile - build websites, games, AI, data analysis
• High demand - one of the most sought-after skills
• Huge community - millions of developers ready to help
• Free and open source - costs you nothing!

What Can You Build with Python?

Web Applications: Instagram, Spotify, YouTube

Data Science & AI: Machine learning models, data analysis

Automation: Automate boring tasks, web scraping

Games: 2D games, game engines

Desktop Applications: Tools and utilities

Your First Python Program

Let's write the famous "Hello, World!" program. This is the traditional first program every programmer writes!

# Your very first Python program!
print("Hello, World!")

Output:
Hello, World!

Understanding the Code:
print() is a function that displays text on the screen.
Anything inside quotation marks " " is called a string (text).

Let's Try More Examples

# Printing multiple lines
print("Welcome to Python!")
print("I'm learning to code")
print("This is exciting!")

Output:
Welcome to Python!
I'm learning to code
This is exciting!

# You can also print numbers
print("My age is:")
print(25)
print(2 + 3) # Python can do math!

Output:
My age is:
25
5

Interactive Quiz Time!

Test your understanding of what you just learned:

Question 1: What does the print() function do in Python?

A) It creates a printer document

B) It displays text or values on the screen

C) It saves data to a file

D) It calculates numbers

Question 2: Which companies use Python?

A) Only small startups

B) Google, Netflix, Instagram, NASA

C) No major companies use it

D) Only game developers

Question 3: What will this code print? print("Hello")

A) Hello

B) print("Hello")

C) "Hello"

D) Nothing, it will show an error

Key Takeaways

Remember these important points:

• Python is beginner-friendly and powerful
• print() function displays output on screen
• Strings are text enclosed in quotes " "
• Python can work with both text and numbers
• Comments start with # and help explain code

Practice Challenge

Your Task: Try to write code that prints:

1. Your name
2. Your favorite hobby
3. The year you were born

Hint: You'll need three print() statements!

Congratulations on completing Lesson 1!

Next Lesson: Installing Python and Writing Your First Real Program
Get ready to install Python on your computer and start coding!