code: def create_binary_buffer(init_or_size):
      
      # As per ctypes.create_string_buffer, as of python 2.7.10 at least:
      # - int or long is a length
      # - str or unicode is an initialiser
      # Testing the latter confuses 2to3, so test the former.
      if isinstance(init_or_size, (int, long)):
          init_or_size = bytearray(init_or_size)
      return create_initialised_buffer(init_or_size)
docs: ctypes.create_string_buffer variant which does not add a trailing null
      when init_or_size is not a size.