Difference between revisions of "CSC111 Lab 9 2015"
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Revision as of 06:15, 29 March 2015
--D. Thiebaut (talk) 07:14, 29 March 2015 (EDT)
Exceptions
preparation
- Create a new program called lab9_1.py, and copy this code to the new Idle window.
# getInput: returns an integer larger
# than 0. Expected to be robust
def getInput():
x = int( input( "Enter an integer larger than 0: " ) )
while x <= 0:
x = int( input( "Invalid number: Please try again: " ) )
return x
def main():
num = getInput()
print( "You have entered", num )
main()
- Test it with numbers such as -3, -10, 0, 5. Verify that the input function works well when you enter numbers.
- Test your program again, and this time enter expressions such as "6.3", or "hello" (without the quotes).
- Make a note of the Error reported by Python:
