CODEWITHSUNDEEP
python
carroll
carroll

Reputation: 29

Converting a set to a string

So I'm supposed to create a function that takes any sort of iterable input and converts it into a string of that input separated by spaces. For example, if you were to call iteration_to_string("abcd") it would return "a b c d " (the space at the end is allowed). or if [1, 2, 3, 4] is the input, it should return "1 2 3 4 ". All I have so far is how to turn the input into a set and Im confused where to go to turn it into a string. I assume it would be adding something into the for loop that would somehow concatenate the inputs together with a space but Im not sure how to do that. Any help is appreciated! 

    def iteration_to_string (data):
        new = set()

        for i in range (len(data)):
            new.add(data[i])


        return " ".join(new)

Upvotes: 0

Views: 578

Answers (2)

hiro protagonist
hiro protagonist

Reputation: 46901

for any iterable

' '.join(iterable)

will return a string with all the elements in iterable separated by a space. refer to str.join(iterable).

if the elements in iterable are not strings you need to

' '.join(str(item) for item in iterable)

(you can do this with any other string as well; ''.join(iterable) if you do not want any spaces in between).

Upvotes: 1

Hackaholic
Hackaholic

Reputation: 19753

your code might not work for list containing element int like [1,2,3,4] because join takes string

so you can convert them to int before join like this:

>>> def my_join(x):
...     return " ".join(map(str, x))
... 
>>> my_join([1, 2, 3, 4])
'1 2 3 4'

you can use list comprehension, if you dont want to use map

 >>> def my_join(x):
 ...     return " ".join(str(element) for element in x))

>>> my_join(['a', 'b' ,'c', 'd'])
'a b c d'

Upvotes: 1

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