I tried writing a program that reads numbers using a loop, evaluates the total numbers, prints it and stops when you type done using try and except.

initiator = True
myList = []

while initiator:
    try:
        userIn = int(input('Enter any number >>  '))
        myList.append(userIn)
        print(myList)

    except ValueError:
        if str(userIn):
            if userIn == 'done':
                pass
            average = eval(myList)
            print(average)
            initiator = False

        else:
            print('Wrong input!\nPlease try again')
            continue

CodePudding user response：

When int() raises an exception, it doesn't set userIn, so you can't compare userIn with done.

You should separate reading the input and callint int().

while True:
    try:
        userIn = input('Enter any number >>  ')
        num = int(userIn)
        myList.append(num)
        print(myList)

    except ValueError:
        if userIn == 'done':
            break
        else:
            print('Wrong input!\nPlease try again')

average = sum(myList) / len(myList)
print(average)

eval() is not the correct way to get the average of a list. Use sum() to add up the list elements, and divide by the length to get the average.