Question

Somebody please help!

Answer 1

>>> prefixes=('JKLMNOPQ')
>>> suffix=('ack')
>>> for letter in prefixes:
print (letter + suffix)


Jack
Kack
Lack
Mack
Nack
Oack
Pack
Qack
>>> #The question they are asking is how to modify this program for the prefixes so that 'u' would be added in between 'O' and 'ack' and 'Q' and 'ack' to create Ouack and Quack. Please help me. Thanks!!

Answer 2

Do you understand this program as it is ?

Answer 3

use conditionals

Answer 4

Ahhh.. I think I do, but I can I ask some dumb questions just in case?

Answer 5

sure

Answer 6

thanks!

Answer 7

ahhh, so the word letter does not matter at all does it? its just used to understand that we're taking a letter but it could be any other word right?

Answer 8

letter is character, you can add more than 1 character

Answer 9

?? so the word letter does have a significance?

Answer 10

Before starting to code, try to imagine in your own words what you want to do. I would say, for this problem:
for each prefix, I want to append the suffix. If the prefix is 'O' or 'Q', I also want to add 'u' between the prefix and the suffix.
If you read that carefully, you will see that the code is mostly done.

Answer 11

prefixes, suffixe, letter are simply variable names. They could have been named foo, bar and maitre_kaio, doesn't matter for the interpreter. But it DOES matter for us, humans, because good variable names help us to understand the code.

Answer 12

ok! thanks! that clears that question up. so, how exactly does for work??

Answer 13

just by saying for it takes each letter? is that the function? is that the only function it has? Can it be used in a different way then "for letter in prefixes:"?

Answer 14

yamaka, I don't want to be rude but have you read anything about the basic structures of Python ?
If not, please check that one:
http://en.wikibooks.org/wiki/Non-Programmer%27s_Tutorial_for_Python_2.6
Because you probably understand that we can't write a full Python tutorial here.
If you have already read some references, please ask more accurately what you don't understand

Answer 15

I'm sorry, I read the text book and how it's supposed to work, but it just doesn't seem to be clicking for this 'for' concept.

Answer 16

OK, imagine you have a collection of elements. They may be of any type (integers, float, string, ....).
You want to do something with each of them. Or should I say:
for each element in set:
do something

Answer 17

yes!

Answer 18

ohh!!! ok that makes sense, so that's why it say 'for letter in prefixes:'
ok i got that now!! Thank you!

Answer 19

what book are you following, it should be written there about it

Answer 20

I'm following the "How to think like a computer scientist", but it says it in such a way that i didn't get the part about elements...probably just lack of understanding on my part tho X(

Answer 21

you may try look at this book http://bit.ly/bzodNl i haven't read it but it looks promising :D

Answer 22

Thank you Tomas XD