Ask for Student name and grade until done is inputted?

Question

I am trying to write a program that stores the names/numbers the user enters in a list and uses functions to compute the maximum, minimum, and average of the students without asking how many there are. However, I don't know where to start. '''

print("-----Program for printing student name with marks using list-----")

D = {}

n = int(input('How many student record you want to store?? '))

ls = []

for i in range(0, n):


x,y = input("Enter the student name and Grade: ").split()


ls.append((y,x))


ls = sorted(ls, reverse = True)

print('Sorted list of students according to their marks in descending order')

for i in ls:


print(i[1], i[0])

you need to use a while loop instead of a for loop at `for i in range(0, n)`, and then check if the input is done. If so, you can exit the loop with the `break` keyword. Otherwise, add it to your list — rcshon, Apr 14 '22 at 19:26
This actually looks like a pretty good start, except that the indentation is messed up so I can't run it to see what it does. What problem are you having? — Samwise, Apr 14 '22 at 19:27
Does this answer your question? [Asking the user for input until they give a valid response](https://stackoverflow.com/questions/23294658/asking-the-user-for-input-until-they-give-a-valid-response) — Mr. T, Apr 14 '22 at 19:42

score 0 · Answer 1 · answered Apr 14 '22 at 19:29

You need to use a while loop, as suggested above, and you need to grab the input as a single string before splitting, so you can check for the "done" signal.

print("-----Program for printing student name with marks using list-----")
ls = []
while True:
    s = input("Enter the student name and Grade: ")
    if s == "done":
        break
    x,y = s.split()
    ls.append((y,x))

ls.sort(reverse = True)
print('Sorted list of students according to their marks in descending order')
for i in ls:
    print(i[1], i[0])

score 0 · Answer 2 · answered Apr 14 '22 at 19:30

As mentioned in my comment, use a while loop like so:

print("-----Program for printing student name with marks using list-----")

D = {} # Not sure what this is for

ls = []

while True:
    user_input = input("Enter the student name and Grade: (done if complete)")

    # Break and exit the loop if done
    if user_input.lower() == 'done':
        break

    # Otherwise, continue adding to list
    x,y = user_input.split()
    ls.append((y,x))

ls = sorted(ls, reverse = True)

print('Sorted list of students according to their marks in descending order')

for i in ls:
    print(i[1], i[0])

score 0 · Answer 3 · answered Apr 14 '22 at 19:32

0

Create infinite loop with while(true): and inside the while block use if(x == "done"): break;. That will ask student name until "done" is inputted.

answered Apr 14 '22 at 19:32

Dragesia

25
6

Ask for Student name and grade until done is inputted?

3 Answers3