Counter-based while loop in Python - Mini Project: Build & Apply

Counter-based while loop

📖 Scenario: You are helping a small shop owner count the number of customers who entered the shop during the day. The owner wants to keep track of the count using a simple program.

🎯 Goal: Build a Python program that uses a counter-based while loop to count customers up to a certain number.

📋 What You'll Learn

Create a counter variable to keep track of the number of customers

Create a maximum number variable to set the limit of customers to count

Use a while loop that runs until the counter reaches the maximum number

Print the final count of customers

💡 Why This Matters

🌍 Real World

Counting customers or items is common in shops, events, or any place where tracking numbers is important.

💼 Career

Understanding loops and counters is essential for programming tasks like data processing, automation, and monitoring systems.

1

Create the initial counter variable

Create a variable called customer_count and set it to 0 to start counting customers.

Python

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

Need a hint?

Think of customer_count as a box where you keep adding one for each customer.

2

Set the maximum number of customers

Create a variable called max_customers and set it to 5 to limit the count.

Python

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

Need a hint?

This number tells the program when to stop counting.

3

Write the counter-based while loop

Use a while loop with the condition customer_count < max_customers. Inside the loop, increase customer_count by 1 each time.

Python

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

Need a hint?

The loop keeps adding one to customer_count until it equals max_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
max_customers = 5
while customer_count < max_customers:
    customer_count += 1
# Print the total number of customers
# Your code here

Need a hint?

Use a comma in the print statement to join text and the number.