Get Most Frequent Word.py

def get_most_frequent_word(lines):
    # Complete this function.
    #print(lines)
    #print(type(lines))

    punc = '''!()-[]{};:'"\,<>./?@#$%^&*_~'''

    combine_lines = ' '.join(lines)
    combine_lines = combine_lines.lower()
    #print(combine_lines)

    split_words = combine_lines.split()

    #print(split_words)

    for i in range (0, len(split_words)):
      for char in split_words[i]:
        if char in punc:
          split_words[i]=split_words[i].replace(char,"")

    #print(split_words)

    count_dict = dict.fromkeys(split_words,0)
    #print(count_dict)

    for words in split_words:
      count_dict[words] = split_words.count(words)

    #print(count_dict)

    max_count = max(count_dict.values())

    most_count=[]
    for key, value in count_dict.items():
      if value == max_count:
        most_count.append(key)

    #print(', '.join(most_count))
    return ', '.join(most_count)

lines = ["The quick brown fox jumps over the lazy dog.",
         "The quick brown fox is quick.",
         "Lazy dogs are not quick."]

get_most_frequent_word(lines)