Write a program that repeatedly prompts a user for integer numbers until the user enters 'done'. Once 'done' is entered, print out the largest and smallest of the numbers. If the user enters anything other than a valid number catch it with a try/except and put out an appropriate message and ignore the number.

Program52.py

"""
Write a program that repeatedly prompts a user for integer numbers until the user enters 'done'. Once 'done' is entered, print out the largest and smallest of the numbers. If the user enters anything other than a valid number catch it with a try/except and put out an appropriate message and ignore the number.
"""

largest = None
smallest = None

while True:
    try:
        num = raw_input("Enter a number: ")
        if num == 'done':
            break;
        n = int(num)
        largest = num if largest < num or largest == None else largest
        smallest = num if smallest > num or smallest == None else smallest
    except:
        print "Invalid input"

print "Maximum number is ", largest
print "Minimum number is ", smallest

largest = None
smallest = None
while True:
num = raw_input("Enter a number: ")
if num == "done" : break
try:
num = int(num)
except:
print("Invalid input")
continue

if largest is None:
    largest = num
elif num > largest:
    largest = num
if smallest is None:
    smallest = num
elif num < smallest:
    smallest = num

print("Maximum is", largest)
print("Minimum is", smallest)