[Coursera] Python for everybody 5.2 Assignment

5.2 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. Enter 7, 2, bob, 10, and 4 and match the output below.

largest = None
smallest = None
while True:
 inp = input("Enter a number: ")
 if inp == "done": break
 try:
  num = float(inp)
 except:
  print("Invalid input")
  continue
 if smallest is None:
  smallest = num
  largest = num
 if num < smallest:
  smallest = num
 elif num > largest:
  largest = num
print("Maximum is", int(largest))  
print("Minimum is", int(smallest))

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