[Tutor] self keyword in recursive function

[Marc Tompkins]

On Fri, May 30, 2014 at 10:16 PM, Ritwik Raghav <ritwikraghav14 at gmail.com>
wrote:


> It has again given some error I do not understand. This time my code is:
>
> count = 0
> def getPersistence(self,n):
>
>     product = 1
>     if len(str(n)) == 1:
>         return self.count
>     else:
>         a = str(n)
>         for i in a:
>             product *= int(i)
>         self.count += 1
>         return self.getPersistence(product)
>
> and the error is:
>
> Correct Return Value: No
>
> Answer check result:
> Result must be not null.
>
> Execution Time: 0.017s
>
> Peak memory used: 24.551MB
>
> abnormal termination (exit 1)
>
> Standard Output:
>
>
> Standard Error:
> Traceback (most recent call last):
>   File "Wrapper.py", line 182, in <module>
> AttributeError: 'module' object has no attribute 'PersistentNumber'
>
>
> I do not understand what it is trying to tell me? I tried to test it for
> 99.
>
>
The error is in some part of your code that you _haven't_ posted here -
please post your entire script (as an attachment, if that's more
convenient) and we'll be better able to help.
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