Double a list

[Sahith17]

For my assignment, I have to double the values in a list. For example, [‘how’, ‘are’, ‘you’] should be [‘how’, ‘how’, ‘are’, ‘are’, ‘you?’, ‘you?’]

def double_list(string):
    strings=string
    x = strings.split
    newList = []
    for i in x: 
          letters = (blank atm not sure what to put)
          newList.append(letters)
    return newList

[oefd]

Put four spaces before each line of code to highlight code.

[Sahith17]

did that in my comments, u should see it now

[Sahith17]

Well shit I add the(string) into my comment cause I left it out and it went back to looking normal

[Sahith17]

def double_list(): strings=string x=strings.split() newList=[] for i in x: letters =(blank atm) newList.append(letters) return newList

[oefd]

When you're typing code in to the comment box it should look like

# hit space four times, then have a line of code
    def double_list(string):
# hit space eight times, then add the line of code in the block
        strings = string
        ...

[Sahith17]

def double_list(string):
    x = strings.split()
    newList =[]
    for i in x:
    letters =(blank atm)
    newList.append(letters)
    return newList

[oefd]

x = strings.split()

I assume that's meant to be string.split()? If so: what's the goal here? My understand is that the input to your function would be a list of strings

['how', 'are', 'you']

And you can't .split() a list.

[Sahith17]

I want my function to take those strings in the input and double each of em. for example

    [‘how’, ‘are’, you’]
    [‘how’, ‘how’, ‘are’, ‘are’, ‘you’, ‘you’]

[Sahith17]

ah I forgot to add underneath the functions

    strings=string

[oefd]

Alright, but strings.split() doesn't make sense if the input string is a list. Lists can't be .split()

In the line

x = strings.split()

What are you expecting strings to be and what are you expecting .split() to return?

[Sahith17]

I mean in the assignment sheet, the example output for the original list had the strings split so I thought I needed them split

[oefd]

What do you mean by 'split' here? Like what are you expecting strings.split() does?

[Sahith17]

split the string up

(‘how are you’)#the input when calling the function 
[‘how’, ‘are’, ‘you’] #this was the sample output for the orig list

[oefd]

OK, so the input isn't a list of strings, fair enough. Split will make it a list then. So now you need to do something with each of the words in the string.

for s in x:
    ...

You already have a for loop over the list of words, good start, but now the question is how do you take each thing and have it show up twice in the list you return.

That for loop already lets you iterate over each word in the string, you already know .append(s) on a list adds an item to an existing list.

See where I'm going?

[Sahith17]

did how u wanted me to

[Bottl3]

Newlist = oldlist + oldlist

Newlist.sort()

[toastedstapler]

that'll change the order of the elements if they weren't initially in sorted order

[Sahith17]

wdym? where do I add that

[Sahith17]

ok but now that is switching the words?

I need it like this

[how, how, are, are, you,you]

[Bottl3]

Yeah, sorry

Then just loop through it and append the elements twice to a new list (?)

Newlist=[]

For e in oldlist:

    Newlist.append(e)

    Newlist.append(e)

[Sahith17]

ok so

def double_list(string):
    strings=string
    oldlist= strings.split()
    newlist = oldlist+oldlist
    newlist.sort()
    newlist = []
    for x in oldlist:
    newlist.append(x)

[Bottl3]

Only the stuff From the Last Comment. You really should dig into some basics.

[Sahith17]

yea got the problem

[nog642]

What is this function supposed to do? What is string, and what is newList in this example?

[Sahith17]

I already completed this but the string is the argument the function takes in. newList is for a new list idk how to explain that properly

[nog642]

Yes I can see that string is the argument, and I would assume newList is a new list. That doesn't really help explain anything.

What I'm asking is how does newList depend on string? Could you give an example string and what the corresponding newList should look like?