old_contents: r'''
  This tests the '_objects' attribute of ctypes instances.  '_objects'
  holds references to objects that must be kept alive as long as the
  ctypes instance, to make sure that the memory buffer is valid.
  
  WARNING: The '_objects' attribute is exposed ONLY for debugging ctypes itself,
  it MUST NEVER BE MODIFIED!
  
  '_objects' is initialized to a dictionary on first use, before that it
  is None.
  
  Here is an array of string pointers:
  
  >>> from ctypes import *
  >>> array = (c_char_p * 5)()
  >>> print(array._objects)
  None
  >>>
  
  The memory block stores pointers to strings, and the strings itself
  assigned from Python must be kept.
  
  >>> array[4] = 'foo bar'
  >>> array._objects
  {'4': 'foo bar'}
  >>> array[4]
  'foo bar'
  >>>
  
  It gets more complicated when the ctypes instance itself is contained
  in a 'base' object.
  
  >>> class X(Structure):
  ...     _fields_ = [("x", c_int), ("y", c_int), ("array", c_char_p * 5)]
  ...
  >>> x = X()
  >>> print(x._objects)
  None
  >>>
  
  The'array' attribute of the 'x' object shares part of the memory buffer
  of 'x' ('_b_base_' is either None, or the root object owning the memory block):
  
  >>> print(x.array._b_base_) # doctest: +ELLIPSIS
  <ctypes.test.test_objects.X object at 0x...>
  >>>
  
  >>> x.array[0] = 'spam spam spam'
  >>> x._objects
  {'0:2': 'spam spam spam'}
  >>> x.array._b_base_._objects
  {'0:2': 'spam spam spam'}
  >>>
  
  '''
  
  import unittest, doctest, sys
  
  import ctypes.test.test_objects
  
  class TestCase(unittest.TestCase):
      if sys.hexversion > 0x02040000:
          # Python 2.3 has no ELLIPSIS flag, so we don't test with this
          # version:
          def test(self):
              doctest.testmod(ctypes.test.test_objects)
  
  if __name__ == '__main__':
      if sys.hexversion > 0x02040000:
          doctest.testmod(ctypes.test.test_objects)
  
new_contents: r'''
  This tests the '_objects' attribute of ctypes instances.  '_objects'
  holds references to objects that must be kept alive as long as the
  ctypes instance, to make sure that the memory buffer is valid.
  
  WARNING: The '_objects' attribute is exposed ONLY for debugging ctypes itself,
  it MUST NEVER BE MODIFIED!
  
  '_objects' is initialized to a dictionary on first use, before that it
  is None.
  
  Here is an array of string pointers:
  
  >>> from ctypes import *
  >>> array = (c_char_p * 5)()
  >>> print(array._objects)
  None
  >>>
  
  The memory block stores pointers to strings, and the strings itself
  assigned from Python must be kept.
  
  >>> array[4] = 'foo bar'
  >>> array._objects
  {s'4': b'foo bar'}
  >>> array[4]
  s'foo bar'
  >>>
  
  It gets more complicated when the ctypes instance itself is contained
  in a 'base' object.
  
  >>> class X(Structure):
  ...     _fields_ = [("x", c_int), ("y", c_int), ("array", c_char_p * 5)]
  ...
  >>> x = X()
  >>> print(x._objects)
  None
  >>>
  
  The'array' attribute of the 'x' object shares part of the memory buffer
  of 'x' ('_b_base_' is either None, or the root object owning the memory block):
  
  >>> print(x.array._b_base_) # doctest: +ELLIPSIS
  <ctypes.test.test_objects.X object at 0x...>
  >>>
  
  >>> x.array[0] = 'spam spam spam'
  >>> x._objects
  {s'0:2': b'spam spam spam'}
  >>> x.array._b_base_._objects
  {s'0:2': b'spam spam spam'}
  >>>
  
  '''
  
  import unittest, doctest, sys
  
  import ctypes.test.test_objects
  
  class TestCase(unittest.TestCase):
      if sys.hexversion > 0x02040000:
          # Python 2.3 has no ELLIPSIS flag, so we don't test with this
          # version:
          def test(self):
              doctest.testmod(ctypes.test.test_objects)
  
  if __name__ == '__main__':
      if sys.hexversion > 0x02040000:
          doctest.testmod(ctypes.test.test_objects)
  
subject: Fix a ctypes test.