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-   -   Re: loops (http://www.velocityreviews.com/forums/t955045-re-loops.html)

Mitya Sirenef 12-02-2012 09:43 PM

Re: loops
 
On 12/02/2012 04:39 PM, Verde Denim wrote:
> I'm just getting into py coding, and have come across an oddity in a py
> book - while loops that don't work as expected...
>
> import random
>
> MIN = 1
> MAX = 6
>
> def main():
> again = 'y'
>
> while again == 'y':
> print('Rolling...')
> print('Values are: ')
> print(random.randint(MIN, MAX))
> print(random.randint(MIN, MAX))
>
> again = input('Roll again? (y = yes): ')
>
> main()
>
> Produces -
> python dice_roll.py
> Rolling...
> Values are:
> 5
> 4
> Roll again? (y = yes): y
> Traceback (most recent call last):
> File "dice_roll.py", line 17, in <module>
> main()
> File "dice_roll.py", line 15, in main
> again = input('Roll again? (y = yes): ')
> File "<string>", line 1, in <module>
> NameError: name 'y' is not defined
>
> This same loop structure appears in many places in this book "Starting
> out with Python, 2nd ed, Tony Gaddis), and they all yield the same
> error. Is there something I'm missing here?
>
> Thanks for the input...


I believe that should be raw_input, not input . input() evaluates user's
input
in local scope. -m


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