* python/py-arch.c (arch_object_type): Use
	CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-block.c (block_syms_iterator_object_type):
	Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-bpevent.c (breakpoint_event_object_type):
	Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-cmd.c (cmdpy_object_type): Use
	CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-continueevent.c (continue_event_object_type):
	Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-event.h (GDBPY_NEW_EVENT_TYPE):
	Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-events.h (thread_event_object_type):
	Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-evtregistry.c (eventregistry_object_type): Use
	CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-exitedevent.c (exited_event_object_type):
	Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-finishbreakpoint.c (finish_breakpoint_object_type):
	Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-function.c (fnpy_object_type): Use
	CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-inferior.c (inferior_object_type, membuf_object_type):
	Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-infthread.c (thread_object_type): Use
	CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-lazy-string.c (lazy_string_object_type):
	Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-newobjfileevent.c (new_objfile_event_object_type):
	Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-objfile.c (objfile_object_type): Use
	CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-param.c (parmpy_object_type):
	Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-progspace.c (pspace_object_type):
	Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-signalevent.c (signal_event_object_type):
	Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-symtab.c (symtab_object_type, sal_object_type): Use
	CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-type.c (type_object_type, field_object_type)
	(type_iterator_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-internal.h (CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF): New
	define.
	(value_object_type, block_object_type, symbol_object_type)
	(event_object_type, stop_event_object_type, breakpoint_object_type)
	(frame_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
	* python/py-threadevent.c (get_event_thread): Use
	CPYCHECKER_RETURNS_BORROWED_REF.
	* python/python-internal.h (CPYCHECKER_RETURNS_BORROWED_REF):
	New define.
	(pspace_to_pspace_object, objfile_to_objfile_object)
	(find_thread_object): Use it.
	* python/py-function.c (fnpy_init): Decref result of
	PyObject_GetAttrString.
	* python/python.c (before_prompt_hook): Add cleanup to
	decref 'hook'.
	* py-cmd.c (gdbpy_string_to_argv): Check result of
	PyList_New.
	* py-evtregistry.c (create_event_object): Decref
	eventregistry_object if PyList_New fails.
        * python/py-event.h (evpy_emit_event): Use
        CPYCHECKER_STEALS_REFERENCE_TO_ARG.
        * python/python-internal.h (CPYCHECKER_STEALS_REFERENCE_TO_ARG):
        New macro.
	* python/python-internal.h (events_object_type): Remove.
	* python/py-arch.c (archpy_disassemble): Update.
	* python/py-type.c (typy_get_composite, typy_lookup_typename)
	(typy_lookup_type): Use GDB_PY_HANDLE_EXCEPTION.
	* python/py-utils.c (gdbpy_convert_exception): Return 'void'.
	* python/python-internal.h (CPYCHECKER_SETS_EXCEPTION): New
	macro.
	(GDB_PY_HANDLE_EXCEPTION): Update.
	(gdbpy_convert_exception): Update.  Use CPYCHECKER_SETS_EXCEPTION.
	* python/py-event.h (gdbpy_initialize_event_generic): Use
	CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION.
	* python/py-evts.c (add_new_registry): Use
	CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION.
	* python/python-internal.h
	(CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION): New macro.
	* python/py-cmd.c (cmdpy_init): Decref 'ds_obj'.
	* python/py-cmd.c (cmdpy_completer): Use iterator protocol.
	Correctly decref.
	* python/py-event.c (evpy_emit_event): Decref the
	result of PyObject_CallFunctionObjArgs.
	* gdb.base/maint.exp: Fix test for "mt expand-symtabs" to account for
	-fdebug-types-section.
	* python/py-inferior.c (gdbpy_inferiors): Update.  Hoist
	get_addr_from_python calls out of TRY_CATCH.
	(infpy_write_memory, infpy_search_memory): Likewise.
	* python/py-utils.c (get_addr_from_python): Return negative
	value on error.  Use TRY_CATCH.
	* python/python-internal.h (get_addr_from_python): Use
	CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION.
	* python/py-type.c (make_fielditem): Add gdb_assert_not_reached
	as 'default' in the switch.
	* python/py-event.c (gdbpy_initialize_event_generic): Return
	early if PyType_Ready fails.
	* python/py-finishbreakpoint.c (bpfinishpy_out_of_scope):
	Decref the reslut of PyObject_CallMethod.
	* python/py-arch.c (gdbpy_initialize_arch): Return 'int'.
	Check errors.
	* python/py-auto-load.c (gdbpy_initialize_auto_load): Return 'int'.
	* python/py-block.c (gdbpy_initialize_blocks): Return 'int'.
	Check errors.
	* python/py-breakpoint.c (gdbpy_initialize_breakpoints): Return 'int'.
	Check errors.
	* python/py-cmd.c (gdbpy_initialize_commands): Return 'int'.
	Check errors.
	* python/py-event.c (gdbpy_initialize_event): Return 'int'.
	Check errors.
	* python/py-event.h (GDBPY_NEW_EVENT_TYPE): Change generated
	init function to return 'int'.
	* python/py-evtregistry.c (gdbpy_initialize_eventregistry):
	Return 'int'.  Check errors.
	* python/py-evts.c (gdbpy_initialize_py_events): Return 'int'.
	Check errors.
	* python/py-finishbreakpoint.c (gdbpy_initialize_finishbreakpoints):
	Return 'int'.  Check errors.
	* python/py-frame.c (gdbpy_initialize_frames): Return 'int'.
	Check errors.
	* python/py-function.c (gdbpy_initialize_functions): Return 'int'.
	Check errors.
	* python/py-gdb-readline.c (gdbpy_initialize_gdb_readline):
	Check errors.
	* python/py-inferior.c (gdbpy_initialize_inferior): Return 'int'.
	Check errors.
	* python/py-infthread.c (gdbpy_initialize_thread): Return 'int'.
	Check errors.
	* python/py-lazy-string.c (gdbpy_initialize_lazy_string): Return 'int'.
	Check errors.
	* python/py-objfile.c (gdbpy_initialize_objfile): Return 'int'.
	Check errors.
	* python/py-param.c (gdbpy_initialize_parameters): Return 'int'.
	Check errors.
	* python/py-progspace.c (gdbpy_initialize_pspace): Return 'int'.
	Check errors.
	* python/py-symbol.c (gdbpy_initialize_symbols): Return 'int'.
	Check errors.
	* python/py-symtab.c (gdbpy_initialize_symtabs): Return 'int'.
	Check errors.
	* python/py-type.c (gdbpy_initialize_types): Return 'int'.
	Check errors.
	* python/py-value.c (gdbpy_initialize_values): Return 'int'.
	Check errors.
	* python/python-internal.h (gdbpy_initialize_auto_load,
	gdbpy_initialize_values, gdbpy_initialize_frames,
	gdbpy_initialize_symtabs, gdbpy_initialize_commands,
	gdbpy_initialize_symbols, gdbpy_initialize_symtabs,
	gdbpy_initialize_blocks, gdbpy_initialize_types,
	gdbpy_initialize_functions, gdbpy_initialize_pspace,
	gdbpy_initialize_objfile, gdbpy_initialize_breakpoints,
	gdbpy_initialize_finishbreakpoints,
	gdbpy_initialize_lazy_string, gdbpy_initialize_parameters,
	gdbpy_initialize_thread, gdbpy_initialize_inferior,
	gdbpy_initialize_eventregistry, gdbpy_initialize_event,
	gdbpy_initialize_py_events, gdbpy_initialize_stop_event,
	gdbpy_initialize_signal_event,
	gdbpy_initialize_breakpoint_event,
	gdbpy_initialize_continue_event,
	gdbpy_initialize_exited_event, gdbpy_initialize_thread_event,
	gdbpy_initialize_new_objfile_event, gdbpy_initialize_arch):
	Update.  Use CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION.
	* python/python.c (gdb_python_initialized): New global.
	(gdbpy_initialize_events): Return 'int'.  Check errors.
	(_initialize_python): Check errors.  Set
	gdb_python_initialized.
	* mi/mi-main.c: Include python-internal.h.
	(mi_cmd_list_features): Check gdb_python_initialized.
	* python/py-inferior.c (python_on_normal_stop, python_on_resume)
	(python_inferior_exit, python_new_objfile, add_thread_object)
	(delete_thread_object, py_free_inferior): Check
	gdb_python_initialized.
	* python/py-prettyprint.c (apply_val_pretty_printer): Check
	gdb_python_initialized.
	* python/py-type.c (save_objfile_types): Check
	gdb_python_initialized.
	* python/python-internal.h (gdb_python_initialized): Declare.
	* python/python.c (ensure_python_env): Throw exception if
	Python not initialized.
	(before_prompt_hook, source_python_script_for_objfile)
	(start_type_printers, apply_type_printers,
	free_type_printers): Check gdb_python_initialized.
	* varobj.c (varobj_get_display_hint)
	(dynamic_varobj_has_child_method, update_dynamic_varobj_children)
	(install_new_value_visualizer, varobj_set_visualizer)
	(value_get_print_value): Check gdb_python_initialized.