[Tutor] need help with python for counter

[Mitya Sirenef]

On 12/19/2012 12:40 AM, Brandon Merritt wrote:
> I feel silly, but I'm having the darndest time trying to figure out 
> why this for counter won't work. I know that there is the count method 
> for the string class, but I was just trying to do it the syntactical 
> way to prove myself that I know the very basics. As of right now, my 
> script is just returning 1 or 0, even if I very clearly make sure that 
> I specify at least 4 instances of the digit in my number string:
>
> number = raw_input('Enter a 7-unit number: ')
>
> digit = raw_input('Enter a single digit: ')
>
> for i in number:
>     count = 0
>     if i == digit:
>         count += 1
>     else:
>         count = 0


Why do you have the else: clause?

You can also do:

count = sum(i==digit for i in number)

I think this is very clear and short..

  -m



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Lark's Tongue Guide to Python: http://lightbird.net/larks/