Python Programming · Week 1

Hello World

Step 1 of 5

Exercise 1: Say hello

Welcome to your first Python programming exercise! Let's start with the classic "Hello, World" program.

In Python, we use the print() function to display text on the screen. Here's how you can print "Hello, World!":

print('Hello, World!')

Let's break this down:

print is the function that tells Python to display something.
The parentheses () contain what we want to print.
The text we want to print is enclosed in single quotes ''.

Now it's your turn! Try printing the following statement:

hello, world

Type your code in the editor below, then hit the Run button to see if it works!

Starter code

# Write your code here to print 'hello, world'

Write your code here

Make it print hello, world

Did it work?

Your program should print this:

hello, world

Paste what you got:

Exercise 2: Print your name

Great job on your first program! Now, let's personalize things a bit by printing your name.

Remember, we use the print() function to display text. If your name is John, you would write:

print('John')

You can print anything as long as it's enclosed in quotes. Try these examples:

print('Hello, I am John!') print('I love Python!') print('2023')

Now it's your turn! Write a Python program to print your own name:

Your Name

Type your code in the editor below, then click the Run button to see your name in lights!

Starter code

# Write code to print your name

Write your code here

Exercise 3: Debugging

Welcome to the world of debugging! As a programmer, you'll spend a lot of time fixing errors in code. Let's start with a simple example.

First, let's understand what syntax is:

What is Syntax?

In programming, syntax refers to the set of rules that define how programs must be written to be valid. It's like the grammar of a programming language. When we violate these rules, we get a syntax error.

Here's a piece of Python code with a syntax error:

print("Hello, World!)

Can you spot the problem? This code has a syntax error because it's missing a closing quotation mark.

Your task is to fix this error. Here are the steps:

Look at the code carefully.
Find the missing quotation mark.
Add the missing quotation mark in the correct place.
Run the corrected code to make sure it works.

Type the corrected code in the editor below, then click Run to check if you've fixed the bug!

Starter code

# Fix the error in the code below
print("Hello, World!)

Write your code here

Make it print Hello, World!

Did it work?

Your program should print this:

Hello, World!

Paste what you got:

Exercise 4: Printing Art

Let's get creative with Python! In this exercise, you'll create ASCII art using print statements.

What is ASCII Art?

ASCII art is a graphic design technique that uses computers for presentation and consists of pictures pieced together from printable characters defined by the ASCII Standard.

You can create simple drawings or patterns using characters. Here's an example:

print(" /\_/\") print("( o.o )") print(" > ^ <")

This code will print a simple cat face:

/\_/\ ( o.o ) > ^ <

Now it's your turn! Use the editor below to create your own ASCII art. Be creative - you could draw an animal, a plant, a building, or anything else you can imagine!

Remember to use multiple print() statements to create multiple lines in your art.

Starter code

# Create your ASCII art here
# Use multiple print() statements

Write your code here

Weekly Project: Star Pattern

Welcome to your weekly project! This week, you'll create a program that prints a specific star pattern. This project will help you practice using multiple print statements to create a shape.

Your task is to write a Python program that prints the following pattern:

* ** *** **** *****

This pattern is a right-angled triangle made of asterisks (*). Each line has one more asterisk than the line above it.

Here are the steps to create this pattern:

Use five separate print() statements, one for each line of the triangle.
In each print() statement, include the correct number of asterisks for that line.
Make sure each line prints on a new line (this happens automatically with print()).

Write your code in the editor below. Use five print() statements to create each line of the pattern. When you're done, click the "Run" button to see if your pattern matches the one above!

Extra Challenge:

If you've successfully created the pattern, try to modify your code to print the pattern in reverse, like this:

*****
****
***
**
*

Starter code

# Write your code here to print the star pattern
# Use five print() statements

Write your code here

Make it print * ** *** **** *****

Did it work?

Your program should print this:

*
**
***
****
*****

Paste what you got:

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