29 lines
780 B
Python
29 lines
780 B
Python
# Exercise 10-7 Addition Calculator
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# Learning Objective: Prevent crashes using try except in a while loop.
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print("Welcome, please remember to press n to quit")
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active = True
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def add_numbers(num1, num2):
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try:
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answer = int(num1) + int(num2)
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except ValueError:
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error_message = "Input must be an integer, try again.\n"
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return error_message
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else:
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return answer
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while active == True:
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num1 = input("Enter number to add: ")
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num2 = input("Enter a second number to add: ")
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print(add_numbers(num1, num2))
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try:
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question = input("Continue? ")
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if question.lower() == 'n' or question.lower() == 'no':
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active = False
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except:
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print("Not a valid input.")
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pass
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