In article
<[EMAIL PROTECTED]>,
takayuki <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I'm studying python via the exellent book "How to think like a python
> programmer" by Allen Downey.
>
> Noob question follows...
>
> animals.txt is a list of animals, each on a separate line: "aardvard,
> bat, cat, dog, elephant, fish, giraffe, horse, insect, jackelope"
>
> I want to loop through the list of words and print words that don't
> have any "avoid" letter in them.
>
> def hasnolet(avoid):
> fin = open('animals.txt')
> for line in fin:
> word = line.strip()
> for letter in avoid:
> if letter in word:
> break
> else:
> print word
>
> hasnolet('abcd')
>
I could give you a fish, or I could teach you to fish. I'd rather do the
latter. So...
Take your inner loop:
> for letter in avoid:
> if letter in word:
> break
> else:
> print word
and instrument it so you can see exactly what's happening. Try something
like:
> for letter in avoid:
> print "letter = %s" % letter
> if letter in word:
> print "it's in word"
> break
> else:
> print "no it's not"
> print word
and see if that helps.
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