Coding HW

Question

So uhhh what does my Coding Professor mean with this:

1. What is the output of:

wordlist = ['cat','dog','rabbit']
letterlist = [ ]
for aword in wordlist:
for aletter in aword:
letterlist.append(aletter)
print(letterlist)

Modify your code above so that only a single copy of each letter is output.

I am confused as what he wants and don’t want to ask….

Answer 1

Caitlin Cook Caitlin Cook I agree, it took me a bit, but I believe he just wants to know the output of the original code for #1.

Which should be each letter from the words seperated in the form a list:

[c, a, t, d, o...]

Answer 2

Caitlin Cook

I have set out 3 snippets showing how to break it down.

Uncomment to see the development

words = ['cat','dog','rabbit']
letters= [ ]

#for word in words:
# print(word)

#for word in words:
# for letter in word:
# print(letter)

for word in words:
for letter in word:
if letter not in letters:
letters.append(letter)
print(letters)

Answer 3

My best guess is that he wants you to check to see if a letter in the letterlist was already appended.

You can do this by implementing the following condition before appending a letter:

if aletter not in letterlist:
# append aletter to letterlist
...

Answer 4

Oooo he means no repeated letters

Answer 5

Ipang oops typo thanks mate

Answer 6

wordlist = ['cat','dog','rabbit']
letterlist = [ ]
for aword in wordlist:
for aletter in aword:
letterlist.append(aletter)
print(letterlist)

def fix(letterlist):
s = set()
list = []
for ch in letterlist:
if ch not in s:
s.add(ch)
list.append(ch)

return ''.join(list)

print(fix(letterlist))

Answer 7

That't great, keep it

Answer 8

It works!!!! Thanks so much!!

Answer 9

for aword in wordlist:
for aletter in letterlist:
letterlist.append(aletter)

letterlist = set(letterlist)
print(letterlist)

A set contains only one copy of any element... So, casting as a set will do as well...

Answer 10

He is having me do that in the next problem so kinda confused on what he wants lol

Answer 11

Oooooo I get it now

Answer 12

Hmmm so the code does that already but not as pretty it does

[‘c’, ‘a’, ‘t’…] and on

Answer 13

I feel like he had a typo maybe? Cause the code already does what he is asking me to do…right?

Answer 14

Thanks everyone for help figuring that out!!!

Answer 15

Good

Answer 16

So like one letter from each word?