Iterating over lists in Python - Mini Project: Build & Apply

Iterating over lists

📖 Scenario: You are helping a small bookstore organize its daily sales data. The store records the number of books sold each day in a list. You will write a simple program to go through this list and work with the sales numbers.

🎯 Goal: Build a program that creates a list of daily book sales, sets a target sales number, counts how many days met or exceeded the target using a loop, and then prints the count.

📋 What You'll Learn

Create a list called daily_sales with the exact values: 12, 7, 15, 9, 20, 5

Create a variable called target and set it to 10

Use a for loop with the variable sales to iterate over daily_sales

Inside the loop, count how many days have sales greater than or equal to target

Print the final count using print(count)

💡 Why This Matters

🌍 Real World

Counting how many days meet a sales goal helps businesses understand their performance and plan better.

💼 Career

This skill is useful for data analysis, reporting, and automating simple business tasks.

1

Create the daily sales list

Create a list called daily_sales with these exact values: 12, 7, 15, 9, 20, 5

Python

# Create the list daily_sales with the values 12, 7, 15, 9, 20, 5
# Your code here

Need a hint?

Use square brackets [] to create a list and separate numbers with commas.

2

Set the target sales number

Create a variable called target and set it to the number 10

Python

daily_sales = [12, 7, 15, 9, 20, 5]
# Create the variable target and set it to 10
# Your code here

Need a hint?

Use the equals sign = to assign the value 10 to the variable target.

3

Count days meeting the target

Create a variable called count and set it to 0. Then use a for loop with the variable sales to iterate over daily_sales. Inside the loop, add 1 to count if sales is greater than or equal to target.

Python

daily_sales = [12, 7, 15, 9, 20, 5]
target = 10
# Create count = 0
# Use for sales in daily_sales:
#   If sales >= target, add 1 to count
# Your code here

Need a hint?

Start with count = 0. Use a for loop to check each sales. Use an if statement to compare sales with target. Increase count by 1 when condition is true.

4

Print the count

Write a print statement to display the value of count

Python

daily_sales = [12, 7, 15, 9, 20, 5]
target = 10
count = 0
for sales in daily_sales:
    if sales >= target:
        count += 1
# Print the count
# Your code here

Need a hint?

Use print(count) to show the final number of days meeting the target.