text: #!/usr/bin/env python3
  
  import re
  import sys
  
  numberRegex = re.compile(r'[0-9]')
  lowerRegex = re.compile(r'[a-z]')
  upperRegex = re.compile(r'[A-Z]')
  
  
  def validate(_pass):
      if len(_pass) >= 8:
          numberFlag = numberRegex.findall(_pass)
          lowerFlag = lowerRegex.findall(_pass)
          upperFlag = upperRegex.findall(_pass)
          if (len(numberFlag) > 0) and (
                  len(lowerFlag) > 0) and (len(upperFlag) > 0):
              print('The password is strong enough.')
          else:
              print('The password is a little bit weak.')
      else:
          print('The password is not 8 characters long.')
  
  
  if __name__ == '__main__':
      _pass = sys.argv[1]
      validate(_pass)
  