<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def split_long_sentence(sentence, words_per_line):
 """Takes a sentence and adds a newline every "words_per_line" words. Parameters sentence: str Sentene to split words_per_line: double Add a newline every this many words """

    words = sentence.split(' ')
    split_sentence = ''
    for i in range(len(words)):
        split_sentence = split_sentence + words[i]
        if (i+1) % words_per_line == 0:
            split_sentence = split_sentence + '\n'
        elif i != len(words) - 1:
            split_sentence = split_sentence + " "
    return split_sentence