How to store numeric input in a loop

Question

I want to make two lists, the first containing three names and the second containing three lists of scores:

name_list = [[name1][name2][name3]] 
score_list = [[22,33,35][32,22,34][32,44,50]]

My current code is this:

name = []
name.append(input('input students name: '))
    
score = []
for i in range(3):
    score.append(int(input('input students scores: ')))

I want to save three names and three lists of scores, but it only saves the last input name and values.

Here is the program I am trying to make: enter image description here

score 2 · Answer 1 · answered Dec 08 '21 at 23:10

2

If you want 3 names and 3 sets of scores, you need another for loop:

names = []
scores = []
for _ in range(3):
    names.append(input('input students name: '))
    scores.append([])
    for _ in range(3):
        scores[-1].append(int(input('input students score: ')))

print(f"names: {names}")
print(f"scores: {scores}")

input students name: name1
input students score: 22
input students score: 33
input students score: 35
input students name: name2
input students score: 32
input students score: 22
input students score: 34
input students name: name3
input students score: 32
input students score: 44
input students score: 50
names: ['name1', 'name2', 'name3']
scores: [[22, 33, 35], [32, 22, 34], [32, 44, 50]]

answered Dec 08 '21 at 23:10

Samwise

68,105
3
30
44

sir, ur code was nearly close to what I've asked. but can it make repeated? when I'm input 1 name and 3 scores, the loop ended. but if i input again the previous value is still there. – Gaga Dec 08 '21 at 23:29
I posted the result of running the code as part of my answer -- you can see that it asks for three names and three sets of three scores each, and prints them at the end. Is that not what you want to have happen? – Samwise Dec 08 '21 at 23:33
@Gaga it's impossible to store the scores in the python file. – Skyrider Feyrs Dec 08 '21 at 23:36

score 0 · Answer 2 · edited Dec 09 '21 at 00:47

Do you mean that every time you run the script, it asks for the score value again? I.e., it doesn't save between sessions?

If so, you could save each var's value inside a text file that's stored in your script's folder.

One way you could go about this is:

def get_vars():
  try:
    fil = open("var-storage.txt", "r") # open file
    fil_content = str(fil.read()) # get the content and save as var
    # you could add some string splitting right here to get the
    # individual vars from the text file, rather than the entire
    # file
    fil.close() # close file
    return fil_content
  except:
    return "There was an error and the variable read couldn't be completed."


def store_vars(var1, var2):
  try:
        with open('var-storage.txt', 'w') as f:
          f.write(f"{var1}, {var2}")
        return True
  except:
        return "There was an error and the variable write couldn't be completed."

# ofc, you would run write THEN read, but you get the idea

How to store numeric input in a loop

2 Answers2