For Loops with Ranges and Lists
Learn Python for loops by building a weekly step tracker that calculates the total and average steps over 7 days.
The project
You’ve already created a step tracker that records daily steps. At the moment, though, it only works when you enter the numbers manually. Printing a single line, such as Steps today: 3,000, can be useful, but it doesn’t show your progress over an entire week. What you need instead is a system that stores seven days of step counts in a list and then loops through them to calculate both the total and the average.
Your project: build a weekly step tracker that keeps 7 days of steps in a list, uses a loop to add them up, and calculates the average steps per day.
The programming concept
A while loop repeats while a condition is true. But sometimes you already know exactly how many times you want something to be repeated. For example: Say hello for 5 times. Do you think a for loop or a while loop is more natural for that? The for loop in Python can work in two modes:
for loop can iterate on a range, e.g.,
for in range(5)directs Python to loop for 5 timesfor loop can work on a ...