text: # -*- coding:utf-8 -*-
  import six
  
  
  def to_unicode(text, encoding=None, errors='strict'):
      if isinstance(text, six.text_type):
          return text
      if not isinstance(text, (bytes, six.string_types)):
          raise TypeError('to_unicode must receive a bytes,str or unicode')
      if encoding is None:
          encoding = 'utf-8'
      return text.decode(encoding, errors)
  
  
  def to_bytes(text, encoding=None, errors='strict'):
      if isinstance(text, bytes):
          return text
      if not isinstance(text, (bytes, six.string_types)):
          raise TypeError('to_bytes must receive a bytes,str or unicode')
      if encoding is None:
          encoding = 'utf-8'
      return text.encode(encoding, errors)
  
  