CODEWITHSUNDEEP
python
Melvin Ching
Melvin Ching

Reputation: 3

Splitting strings and appending to new list

I am trying to append a data in to names_list i get it that names_list = list but i don't know why names_list[i] become a string and how do i convert it back to list?

for data in f:
    drawingdata = data.split()
    names = drawingdata[0]
    heights = drawingdata[1]
    names_list = names.strip('][').split(',')
    for i in range(len(new_name)):
        names_list[i].append(new_name[i])

Upvotes: 0

Views: 728

Answers (2)

h4z3
h4z3

Reputation: 5458

i don't know why names_list[i] become a string and how do i convert it back to list?

names_list is a list

names_list[i] is i_th element of the list (0-indexed), that's why it's a string

What you want to do is names_list.append, NOT names_list[i].append (you want to append to the whole list, not to an element of the list)

Also, if new_name is a single name, then the whole loop is unnecessary because you will append each letter of the name as a separate entry!

Just do names_list.append(new_name).

Upvotes: 1

Bytes2048
Bytes2048

Reputation: 344

I think this is the reason:

names_list[i] returns a string because drawingdata is a list with each value a string, and names is the first item in drawingdata so it is a string. Therefore names_list is splitting names into an list with strings, so names_list[i] is a string.

To answer your question about converting name_list[i] into a list, you can try [names_list[i]], which will give you a list with only names_list[i] in it.

Upvotes: 0

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