old_contents: headers = {
      'User-Agent': 'Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/'
                    '537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36',
      'Referer': ''
  }
  
  r_server = {
      'ip': '1.2.3.4',
      'port': '6379',
      'passwd': '',
      's_proxy': 'proxy_ip',
      's_url': 'url'
  }
  
  d_server = {
      'user': 'user',
      'passwd': 'password',
      'addr': 'localhost'
  }
  
  settings = {
      'p_pages': 4
  }
  
  filters = {
      # 文本最少字符数
      'txt-len': 100,
      # 允许楼主在第一页最大回复数 re-max/10
      're-max': 5
  }
new_contents: headers = {
      'User-Agent': 'Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/'
                    '537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36',
      'Referer': ''
  }
  
  r_server = {
      'ip': '1.2.3.4',
      'port': '6379',
      'passwd': '',
      's_proxy': 'proxy_ip',
      's_url': 'url'
  }
  
  # settings for connecting database
  d_server = {
      'user': 'user',
      'passwd': 'password',
      'addr': 'localhost'
  }
  
  settings = {
      'p_pages': 4
  }
  
  filters = {
      # 文本最少字符数
      'txt-len': 100,
      # 允许楼主在第一页最大回复数 re-max/10
      're-max': 5
  }
  
subject: Update config.py