[Tutor] input problem

[Nick Raptis]

On 08/22/2010 09:35 PM, Roelof Wobben wrote:
> Hello,
>
> I made this programm :
>
> def count_letters(n,a):
>     count = 0
>     for char in n:
>         if char == a:
>             count += 1
>     return count
> fruit=""
> letter=""
> fruit= input("Enter a sort of fruit: ")
> teller = input("Enter the character which must be counted: ")
> x=count_letters (fruit,letter)
> print "De letter", letter , "komt", x , "maal voor in het woord", fruit
>
> The problem is that I can't have the opportuntity for input anything.
> I use python 2.7 on a Win7 machine with as editor SPE.
>
> Roelof
>
Also, you have a typo in your code (teller instead of letter) so fix 
that too :)

A couple more comments:
- You don't have to initialize fruit and letter. Doesn't make sense in 
this context.

- Although I can see you made the count_letters() function as an 
exercise, there is a build in method of string that accomplishes the 
same effect.
Try x=fruit.count(letter)

- Give a bit of thought about what would happen if someone enters a 
whole string instead of a character for letter. How should your program 
accommodate that?

Nick