gh-109162: libregrtest: use relative imports (#109250)

libregrtest.__init__ no longer exposes any symbol, so
"python -m test.libregrtest.worker" imports less modules.

Author: vstinner

Lib/test/__main__.py

@@ -1,2 +1,2 @@
-from test.libregrtest import main
+from test.libregrtest.main import main
 main()

Lib/test/autotest.py

@@ -1,5 +1,5 @@
 # This should be equivalent to running regrtest.py from the cmdline.
 # It can be especially handy if you're in an interactive shell, e.g.,
 # from test import autotest.
-from test.libregrtest import main
+from test.libregrtest.main import main
 main()

Lib/test/libregrtest/__init__.py

@@ -1,2 +0,0 @@
-from test.libregrtest.cmdline import _parse_args, RESOURCE_NAMES, ALL_RESOURCES
-from test.libregrtest.main import main

Lib/test/libregrtest/findtests.py

@@ -1,6 +1,6 @@
 import os
 
-from test.libregrtest.utils import StrPath, TestName, TestList
+from .utils import StrPath, TestName, TestList
 
 
 # If these test directories are encountered recurse into them and treat each

Lib/test/libregrtest/logger.py

@@ -1,12 +1,12 @@
 import os
 import time
 
-from test.libregrtest.results import TestResults
-from test.libregrtest.runtests import RunTests
-from test.libregrtest.utils import print_warning, MS_WINDOWS
+from .results import TestResults
+from .runtests import RunTests
+from .utils import print_warning, MS_WINDOWS
 
 if MS_WINDOWS:
-    from test.libregrtest.win_utils import WindowsLoadTracker
+    from .win_utils import WindowsLoadTracker
 
 
 class Logger:

Lib/test/libregrtest/main.py

@@ -10,16 +10,16 @@
 from test import support
 from test.support import os_helper
 
-from test.libregrtest.cmdline import _parse_args, Namespace
-from test.libregrtest.findtests import findtests, split_test_packages
-from test.libregrtest.logger import Logger
-from test.libregrtest.result import State
-from test.libregrtest.runtests import RunTests, HuntRefleak
-from test.libregrtest.setup import setup_process, setup_test_dir
-from test.libregrtest.single import run_single_test, PROGRESS_MIN_TIME
-from test.libregrtest.pgo import setup_pgo_tests
-from test.libregrtest.results import TestResults
-from test.libregrtest.utils import (
+from .cmdline import _parse_args, Namespace
+from .findtests import findtests, split_test_packages
+from .logger import Logger
+from .result import State
+from .runtests import RunTests, HuntRefleak
+from .setup import setup_process, setup_test_dir
+from .single import run_single_test, PROGRESS_MIN_TIME
+from .pgo import setup_pgo_tests
+from .results import TestResults
+from .utils import (
     StrPath, StrJSON, TestName, TestList, TestTuple, FilterTuple,
     strip_py_suffix, count, format_duration,
     printlist, get_build_info, get_temp_dir, get_work_dir, exit_timeout,
@@ -409,7 +409,7 @@ def get_state(self):
         return state
 
     def _run_tests_mp(self, runtests: RunTests, num_workers: int) -> None:
-        from test.libregrtest.run_workers import RunWorkers
+        from .run_workers import RunWorkers
         RunWorkers(num_workers, runtests, self.logger, self.results).run()
 
     def finalize_tests(self, tracer):

Lib/test/libregrtest/refleak.py

@@ -5,8 +5,8 @@
 from test import support
 from test.support import os_helper
 
-from test.libregrtest.runtests import HuntRefleak
-from test.libregrtest.utils import clear_caches
+from .runtests import HuntRefleak
+from .utils import clear_caches
 
 try:
     from _abc import _get_dump

Lib/test/libregrtest/result.py

@@ -4,7 +4,7 @@
 
 from test.support import TestStats
 
-from test.libregrtest.utils import (
+from .utils import (
     StrJSON, TestName, FilterTuple,
     format_duration, normalize_test_name, print_warning)
 

Lib/test/libregrtest/results.py

@@ -1,9 +1,9 @@
 import sys
 from test.support import TestStats
 
-from test.libregrtest.runtests import RunTests
-from test.libregrtest.result import State, TestResult
-from test.libregrtest.utils import (
+from .runtests import RunTests
+from .result import State, TestResult
+from .utils import (
     StrPath, TestName, TestTuple, TestList, FilterDict,
     printlist, count, format_duration)
 

Lib/test/libregrtest/run_workers.py

@@ -14,15 +14,15 @@
 from test import support
 from test.support import os_helper
 
-from test.libregrtest.logger import Logger
-from test.libregrtest.result import TestResult, State
-from test.libregrtest.results import TestResults
-from test.libregrtest.runtests import RunTests
-from test.libregrtest.single import PROGRESS_MIN_TIME
-from test.libregrtest.utils import (
+from .logger import Logger
+from .result import TestResult, State
+from .results import TestResults
+from .runtests import RunTests
+from .single import PROGRESS_MIN_TIME
+from .utils import (
     StrPath, TestName,
     format_duration, print_warning)
-from test.libregrtest.worker import create_worker_process, USE_PROCESS_GROUP
+from .worker import create_worker_process, USE_PROCESS_GROUP
 
 if sys.platform == 'win32':
     import locale

Lib/test/libregrtest/runtests.py

@@ -2,7 +2,7 @@
 import json
 from typing import Any
 
-from test.libregrtest.utils import (
+from .utils import (
     StrPath, StrJSON, TestTuple, FilterTuple, FilterDict)
 
 

Lib/test/libregrtest/save_env.py

@@ -3,9 +3,11 @@
 import os
 import sys
 import threading
+
 from test import support
 from test.support import os_helper
-from test.libregrtest.utils import print_warning
+
+from .utils import print_warning
 
 
 class SkipTestEnvironment(Exception):

Lib/test/libregrtest/setup.py

@@ -10,8 +10,8 @@
 except ImportError:
     gc = None
 
-from test.libregrtest.runtests import RunTests
-from test.libregrtest.utils import (
+from .runtests import RunTests
+from .utils import (
     setup_unraisable_hook, setup_threading_excepthook, fix_umask,
     replace_stdout, adjust_rlimit_nofile)
 

Lib/test/libregrtest/single.py

@@ -12,11 +12,11 @@
 from test.support import TestStats
 from test.support import threading_helper
 
-from test.libregrtest.result import State, TestResult
-from test.libregrtest.runtests import RunTests
-from test.libregrtest.save_env import saved_test_environment
-from test.libregrtest.setup import setup_tests
-from test.libregrtest.utils import (
+from .result import State, TestResult
+from .runtests import RunTests
+from .save_env import saved_test_environment
+from .setup import setup_tests
+from .utils import (
     TestName,
     clear_caches, remove_testfn, abs_module_name, print_warning)
 
@@ -40,7 +40,7 @@ def regrtest_runner(result: TestResult, test_func, runtests: RunTests) -> None:
     # Run test_func(), collect statistics, and detect reference and memory
     # leaks.
     if runtests.hunt_refleak:
-        from test.libregrtest.refleak import runtest_refleak
+        from .refleak import runtest_refleak
         refleak, test_result = runtest_refleak(result.test_name, test_func,
                                                runtests.hunt_refleak,
                                                runtests.quiet)

Lib/test/libregrtest/worker.py

@@ -6,10 +6,10 @@
 from test import support
 from test.support import os_helper
 
-from test.libregrtest.setup import setup_process, setup_test_dir
-from test.libregrtest.runtests import RunTests
-from test.libregrtest.single import run_single_test
-from test.libregrtest.utils import (
+from .setup import setup_process, setup_test_dir
+from .runtests import RunTests
+from .single import run_single_test
+from .utils import (
     StrPath, StrJSON, FilterTuple,
     get_work_dir, exit_timeout)
 

Lib/test/regrtest.py

@@ -8,7 +8,7 @@
 
 import os
 import sys
-from test.libregrtest import main
+from test.libregrtest.main import main
 
 
 # Alias for backward compatibility (just in case)