newbie question: for loop within for loop confusion

[takayuki]

Thanks to everyone for the excellent advice.

Roy: I did as you suggested and could see after staring at the output
for awhile what was going on.  The print statements really helped to
put a little light on things.  Yes, I agree that "learning to fish" is
the best way.

John: There were two "inchworms" because "c" is in "inchworm" so it
shouldn't print.  Thanks for your detailed description of the for
loop.

The Saint: i'll check out the  word = line.split() command.


After much flailing about, here's a loop that is working:

def hasnolet2(avoid):
	fin = open('animals.txt')
	for line in fin:
		word = line.strip()

	length = len(avoid)
	x = 0
	noprint = 0

	while length -1 >= x:
		if avoid[x] in word:
			noprint = noprint + 1
		x = x + 1

	if noprint == 0:
		print word

hasnolet2('abcd')

which should return:
fish
horse


hasnolet2('abcd')