new_contents: # Source:https://github.com/Show-Me-the-Code/show-me-the-code
  # Author:renzongxian
  # Date:2014-12-08
  # Python 3.4
  
  """
  
  第 0006 题：你有一个目录，放了你一个月的日记，都是 txt，为了避免分词的问题，假设内容都是英文，请统计出你认为每篇日记最重要的词。
  
  """
  
  import os
  import sys
  import re
  
  
  def important_word(target_file):
      file_object = open(target_file, 'r')
      file_content = file_object.read()
  
      # Split the string
      p = re.compile(r'[\W\d]*')
      word_list = p.split(file_content)
  
      word_dict = {}
      for word in word_list:
          if word not in word_dict:
              word_dict[word] = 1
          else:
              word_dict[word] += 1
      sort = sorted(word_dict.items(), key=lambda e: e[1], reverse=True)
  
      print("The most word in '%s' is '%s', it appears %s times" % (target_file, sort[0][0], sort[0][1]))
      print("The second most word in '%s' is '%s', it appears %s times" % (target_file, sort[1][0], sort[1][1]))
      file_object.close()
  
  
  if __name__ == "__main__":
      if len(sys.argv) <= 1:
          print("Need at least 1 parameter. Try to execute 'python 0006.py $dir_path'")
      else:
          for dir_path in sys.argv[1:]:
              for file_name in os.listdir(dir_path):
                  file_path = os.path.join(dir_path, file_name)
                  important_word(file_path)
subject: Add the solution to 0006