Your First Python Program: Hello World

The "Hello, World!" program is a traditional first program for beginners learning a new programming language. It's simple but demonstrates several important concepts.

The Classic Hello World

print("Hello, World!")

This single line does several things:

1. Uses the print() function
2. Passes a string as an argument
3. Outputs text to the console

Understanding the Code

The print() Function

• print() is a built-in Python function
• It displays output to the console
• It can accept multiple arguments

Strings

• Text in Python is called a string
• Strings are enclosed in quotes (single or double)
• Both 'Hello, World!' and "Hello, World!" are valid

Variations of Hello World

Multiple Arguments

print("Hello,", "World!")

Using Variables

message = "Hello, World!"
print(message)

Formatted Output

name = "Python"
print(f"Hello, {name}!")

Running Your Program

1. Save the code in a file with .py extension
2. Open terminal/command prompt
3. Navigate to the file location
4. Run: python filename.py

Common Mistakes

• Forgetting quotes around strings
• Missing parentheses for function calls
• Incorrect file extension

What's Next?

Now that you can run Python programs, you're ready to learn about:

• Variables and data types
• User input
• Basic operations
• Comments

Keep practicing with different variations of the Hello World program!