code: def clean_text(text):
      
      new_text = re.sub(ur'\p{P}+', ' ', text)
  
      new_text = [stem(i) for i in new_text.lower().split() if not
                  re.findall(r'[0-9]', i)]
  
      new_text = ' '.join(new_text)
  
      return new_text
docs: Clean text for TFIDF.