newbie question: for loop within for loop confusion
johnjsal at gmailNOSPAM.com
Mon Jun 16 05:11:08 CEST 2008
> for letter in avoid:
> if letter in word:
> print word
Take the word 'dog', for example. What the above loop is doing is
1. for letter in avoid uses 'a' first
2. is 'a' in 'dog'?
3. no, so it prints 'dog'
4. go back to for loop, use 'b'
5. is 'b' in 'dog'?
6. no, so it prints 'dog' again
7. go back to for loop.....
Since it goes sequentially through 'abcd', it will say that the first
three letters are not in 'dog', and therefore print it three times. Then
it finally sees that 'd' *is* in dog, so it skips it the fourth time
through the loop.
More information about the Python-list