Python 3.4- Inserting spaces at regular intervals [duplicate]

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This question already has an answer here:

    <li> Split a string into N equal parts? [duplicate] <span class="question-originals-answer-count"> 6 answers </span> </li> </ul>

    I am trying to get Python to allow me to insert a space at regular intervals (every 5th character), in a string. This is my code:

    str1 = "abcdefghijklmnopqrstuvwxyz" list1 = [] list2 = [] count = 3 space = " " # converting string to list for i in str1: list1.append(i) print(list1) # inserting spaces for i in list1: mod = count%6 count = count + 1 if mod == 0: list1.insert(count,space) count = count + 1 #converting back to a string list2 = "".join(list1) print(str(list2))

    however it groups the first section together as 7. Can anyone help me fix this?


    Very easy with a regex:

    >>> import re >>> ' '.join(re.findall(r'.{1,5}', str1)) 'abcde fghij klmno pqrst uvwxy z'

    Or use a slice:

    >>> n=5 >>> ' '.join([str1[i:i+n] for i in range(0, len(str1), n)]) 'abcde fghij klmno pqrst uvwxy z'


    In a step by step script:

    You can use the string module to get all the ascii letters in lowercase:

    from string import ascii_lowercase

    Now, you can iterate every five characters and add a space using the following:

    result = "" for i in range(0,len(ascii_lowercase), 5): result += ascii_lowercase[i:i+5] + ' ' print(result)

    Prints the following result:

    abcde fghij klmno pqrst uvwxy z


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