Exercise 5.2 - Python for Everybody

Write another program that prompts for a list of numbers
as above and at the end prints out both the maximum and minimum of
the numbers instead of the average.

largest = None
smallest = None
count = 0
total = 0
while True:
    try:
        
        number = input("Enter a number: ")
        if number == "done":
            break
        number = int(number)
        count +=1
        total =number + total
        if largest == None and smallest == None:
            largest = number
            smallest = number
        if largest == None or number > largest:
            largest = number
        if smallest == None or number < smallest:
            smallest = number
    except:
        print("Invalid input")
print("The maximum number is: {}".format(largest))
print("The minimum number is: {}".format(smallest))  
print("The total number is: {}".format(total))
print("The count number is: {}".format(count))

I did mine like this, I hope it helps...

smallest = None
largest = None

while True :
    sline = input("Plase enter a number: ")
    if sline == "done" : break
    try:
        fline = float(sline)
    except:
        print("Invalid input")
        continue
    if largest is None or fline > largest : largest = fline
    if smallest is None or fline < smallest : smallest = fline

print('Maximum:',smallest)
print('Minimum:',largest)