text: import sys
  import inspect
  
  PY2 = sys.version_info[0] == 2
  
  
  def with_metaclass(meta, *bases):
      # Taken from flask/six.
      class metaclass(meta):
          def __new__(cls, name, this_bases, d):
              return meta(name, bases, d)
      return type.__new__(metaclass, 'temporary_class', (), {})
  
  
  if PY2:
      text_type = unicode
      string_type = basestring
      from itertools import izip_longest as zip_longest
  
      def with_str_method(cls):
          """Class decorator that handles __str__ compat between py2 and py3."""
          # In python2, the __str__ should be __unicode__
          # and __str__ should return bytes.
          cls.__unicode__ = cls.__str__
          def __str__(self):
              return self.__unicode__().encode('utf-8')
          cls.__str__ = __str__
          return cls
  
      def with_repr_method(cls):
          """Class decorator that handle __repr__ with py2 and py3."""
          # This is almost the same thing as with_str_method *except*
          # it uses the unicode_escape encoding.  This also means we need to be
          # careful encoding the input multiple times, so we only encode
          # if we get a unicode type.
          original_repr_method = cls.__repr__
          def __repr__(self):
              original_repr = original_repr_method(self)
              if isinstance(original_repr, text_type):
                  original_repr = original_repr.encode('unicode_escape')
              return original_repr
          cls.__repr__ = __repr__
          return cls
  
      def get_methods(cls):
          for name, method in inspect.getmembers(cls,
                                                 predicate=inspect.ismethod):
              yield name, method
  
  else:
      text_type = str
      string_type = str
      from itertools import zip_longest
  
      def with_str_method(cls):
          # In python3, we don't need to do anything, we return a str type.
          return cls
  
      def with_repr_method(cls):
          return cls
  
      def get_methods(cls):
          for name, method in inspect.getmembers(cls,
                                                 predicate=inspect.isfunction):
              yield name, method
  