Is there a more elegant way to write a list join function in Python 3.7?

Question

I'm using Python 3.7. I want to turn a list of elements into a string by concatenating each element and inserting a string in between them. So if my list consists of

"a", "b", "c"

I would like the result to be

"a-b-c"

I can't find a single Python function to do this. Does one exist? I have resorted to writing this

def concatenate_list_data(list):
    result= ''
    for element in list:
        result += "-"
        result += element
    return result

but figure there is a more elegant way to do it.

Does this answer your question? [Concatenate item in list to strings](https://stackoverflow.com/questions/12453580/concatenate-item-in-list-to-strings) — Brian61354270, Apr 01 '20 at 21:23

score 1 · Answer 1 · answered Apr 01 '20 at 21:20

1

You could use join:

result = '-'.join(mylist)

answered Apr 01 '20 at 21:20

Mureinik

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score 0 · Accepted Answer · answered Apr 01 '20 at 21:30

0

join is exactly for you:

res = '-'.join(my_list) where my_list is your iterable.

answered Apr 01 '20 at 21:30

Gabio

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Is there a more elegant way to write a list join function in Python 3.7?

2 Answers2