How can you store user input within a loop without overwriting?

Question

I'm having a user input info for a program and I'm having trouble storing information from user without it overwriting in a loop. My code as follows:

def main():
    total_circles = input("Enter the number of circles: ")
    for number in range(1, int(total_circles) + 1):
        circles = input("Enter the radius of circle {}: ".format(number))
        circle_value = float(circles)
    circle_value = [] + [circle_value]

Is there a way to store each radii input into a variable to be added into the list cValue?

Output:

Enter the number of circles: 2
Enter the radius of circle 1: 7
Enter the radius of circle 2: 4

circle_value.append(float(circles)) should do the trick instead of circle_value = float(circles) — SirParselot
– SirParselot, Commented Oct 28, 2015 at 19:49

chucksmash · Accepted Answer · 2015-10-28 19:56:08Z

4

You want to initialize a list to append the values to before you enter the loop:

def main():
    total_circles = input("Enter the number of circles: ")
    circles = []
    for number in range(1, int(total_circles) + 1):
        circles.append(float(input("Enter the radius of circle {}: ".format(number))))
    print(circles)

If you run the program with the following input:

Enter the number of circles: 2
Enter the radius of circle 1: 5
Enter the radius of circle 2: 7

The output will be

[5.0, 7.0]

And the individual values on that list can be accessed like this:

circles[0]  # 5.0, the value of circle 1 (stored at index 0)
circles[1]  # 7.0, the value of circle 2 (stored at index 1)

edited Oct 28, 2015 at 19:56

answered Oct 28, 2015 at 19:49

chucksmash

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2 Comments

Compscistudent Over a year ago

thank you. appreciate the answer. I figured if i did .append() it would have done the same but now I know.

chucksmash Over a year ago

@Compscistudent Nearly. If you had initialized a list to save the circle values in prior to the loop (call it circle_values if you like), then instead of circle_values.append(circle_value) inside the loop you could also write circle_values += [circle_value] to accomplish the appending.

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