old_contents: import sys
  from types import MethodType
  
  # True if we are running on Python 3.
  PY3 = sys.version_info[0] == 3
  
  
  if PY3:
      string_types = (str,)
  else:  # pragma: no cover
      string_types = (basestring,)  # noqa
  
  
  if PY3:
      def create_method_for_class(callable, type):
          return MethodType(callable, type)
  
      def create_method_for_instance(callable, obj):
          return MethodType(callable, obj)
  else:
      def create_method_for_class(callable, type):
          return MethodType(callable, None, type)
  
      def create_method_for_instance(callable, obj):
          return MethodType(callable, obj, obj.__class__)
  
new_contents: import sys
  from types import MethodType
  
  # True if we are running on Python 3.
  PY3 = sys.version_info[0] == 3
  
  
  if PY3:
      string_types = (str,)
  else:  # pragma: no cover
      string_types = (basestring,)  # noqa
  
  
  if PY3:
      def create_method_for_class(callable, type):
          return MethodType(callable, type)
  
      def create_method_for_instance(callable, obj):
          return MethodType(callable, obj)
  else:  # pragma: no cover
      def create_method_for_class(callable, type):
          return MethodType(callable, None, type)
  
      def create_method_for_instance(callable, obj):
          return MethodType(callable, obj, obj.__class__)
  
subject: Exclude from coverage the code pathways that are specific to Python 2.