While loop execution flow in Python - Mini Project: Build & Apply

While Loop Execution Flow

📖 Scenario: You are helping a cashier count the number of customers entering a small shop. The cashier wants to keep track until a certain number is reached.

🎯 Goal: Build a program that uses a while loop to count customers until the target number is reached.

📋 What You'll Learn

Create a variable to store the current count of customers.

Create a variable for the target number of customers.

Use a while loop to increase the count until it reaches the target.

Print the final count after the loop ends.

💡 Why This Matters

🌍 Real World

Counting customers or items until a goal is reached is common in stores, events, or inventory management.

💼 Career

Understanding while loops helps in automating repetitive tasks and controlling program flow in many software jobs.

1

Create the initial count variable

Create a variable called customer_count and set it to 0.

Python

# Create a variable called customer_count and set it to 0
# Your code here

Need a hint?

Think of customer_count as the number of customers counted so far.

2

Set the target number of customers

Create a variable called target_customers and set it to 5.

Python

customer_count = 0
# Create a variable called target_customers and set it to 5
# Your code here

Need a hint?

This is the number of customers we want to count until.

3

Use a while loop to count customers

Use a while loop with the condition customer_count < target_customers. Inside the loop, increase customer_count by 1.

Python

customer_count = 0
target_customers = 5
# Use a while loop to increase customer_count until it reaches target_customers
# Your code here

Need a hint?

The loop runs as long as customer_count is less than target_customers.

4

Print the final customer count

Write a print statement to display the text "Total customers: " followed by the value of customer_count.

Python

customer_count = 0
target_customers = 5
while customer_count < target_customers:
    customer_count += 1
# Print the final customer_count
# Your code here

Need a hint?

Use a comma in print to separate text and variable.