No one else has caught another problem. I comment on it below:
On 2/20/2012 6:46 PM, Michael Lewis wrote:
Hi everyone,
I am having some trouble understanding how to use __name__==
'__main__'. Can you please give me some insight? Also, to use this, it
needs to be within a function? Do you typically just throw it in your
very last function or create a separate function just for this? I at
first put it outside and after all my functions but got the error
below and then put it inside my last function and the program ran.
(side note, I have an error in my return for MultiplyText that I am
still trying to work out, so you can ignore that part).
Code:
'''homework 5_1'''
def MultiplyText(text, multiplier):
'''Recieve a S. For digits in S, multiply by multiplier and return
updated S.'''
for num in text:
return ''.join(str(int(num) * multiplier) if num.isdigit()
else num for num in text)
This will fail, as multiplier is a string.
def GetUserInput():
'''Get S & multiplier. Test multiplier.isdigit(). Call
MultiplyText(text, multiplier)'''
while True:
text = raw_input('Enter some text: ')
multiplier = raw_input('Enter a multiplier: ')
try:
multiplier.isdigit()
multiplier.isdigit() returns True or False. It will not raise an exception!
break
except ValueError:
continue
new_text = MultiplyText(text, multiplier)
return new_text
if __name == '__main__':
print GetUserInput()
To fix both problems replace
multiplier.isdigit()
with
multiplier = int(multiplier)
--
Bob Gailer
919-636-4239
Chapel Hill NC
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