old_contents: from django.core.files.base import ContentFile
  from django.http.response import HttpResponse
  from django.conf import settings
  from django.contrib.auth import get_user_model
  import datetime
  
  from PIL import Image
  from io import BytesIO
  from wordcloud import WordCloud
  
  
  def format_wordcloud_name(username):
      wordcloud_name = settings.IMAGE_FILENAME_FORMAT.format(
          username=username,
          datetime=datetime.datetime.now().strftime("%Y-%m-%d-%H%M%S"),
      )
      return wordcloud_name
  
  
  def set_wordcloud_image(words):
  
      if words:
          # WordCloud Option
          wc = WordCloud(
              background_color=settings.WORDCLOUD_BACKGROUND_COLOR,
              width=settings.WORDCLOUD_WIDTH,
              height=settings.WORDCLOUD_HEIGHT,
              max_words=settings.WORDCLOUD_MAX_WORDS,
              max_font_size=settings.WORDCLOUD_MAX_FRONT_SIZE,
              scale=settings.WORDCLOUD_SCALE,
          )
          wordcloud_img = wc.generate(words).to_image()
          return wordcloud_img
      return None
  
  
  def save_wordcloud(user):
      whole_used_words = " ".join(user.whole_used_words())
      wordcloud_img = set_wordcloud_image(whole_used_words)
  
      if wordcloud_img:
          f = BytesIO()
          try:
              wordcloud_img.save(f, format='png')
              user.word_cloud.save(
                  format_wordcloud_name(user.username),
                  ContentFile(f.getvalue()),
              )
          finally:
              f.close()
      else:
          # If user has no words
          user.word_cloud = None
          user.save()
  
new_contents: from django.core.files.base import ContentFile
  from django.http.response import HttpResponse
  from django.conf import settings
  from django.contrib.auth import get_user_model
  import datetime
  
  from PIL import Image
  from io import BytesIO
  from wordcloud import WordCloud
  
  
  def format_wordcloud_name(username):
      wordcloud_name = settings.IMAGE_FILENAME_FORMAT.format(
          username=username,
          datetime=datetime.datetime.now().strftime("%Y-%m-%d-%H%M%S"),
      )
      return wordcloud_name
  
  
  def set_wordcloud_image(words):
  
      if words:
          # WordCloud Option
          wc = WordCloud(
              background_color=settings.WORDCLOUD_BACKGROUND_COLOR,
              width=settings.WORDCLOUD_WIDTH,
              height=settings.WORDCLOUD_HEIGHT,
              max_words=settings.WORDCLOUD_MAX_WORDS,
              max_font_size=settings.WORDCLOUD_MAX_FRONT_SIZE,
              scale=settings.WORDCLOUD_SCALE,
          )
          wordcloud_img = wc.generate(words).to_image()
          return wordcloud_img
      return None
  
  
  def save_wordcloud(user):
      whole_used_words = " ".join(user.whole_used_words)
      wordcloud_img = set_wordcloud_image(whole_used_words)
  
      if wordcloud_img:
          f = BytesIO()
          try:
              wordcloud_img.save(f, format='png')
              user.word_cloud.save(
                  format_wordcloud_name(user.username),
                  ContentFile(f.getvalue()),
              )
          finally:
              f.close()
      else:
          # If user has no words
          user.word_cloud = None
          user.save()
  
subject: fix save_wordcloud utils: remove parentheses behind whole_used_words