From f33a518fc04bcb4f875b2c741c7bbee8db9e01d8 Mon Sep 17 00:00:00 2001
From: Arne Keller <arne.keller@posteo.de>
Date: Sat, 11 Jan 2025 11:27:21 +0100
Subject: [PATCH] Fix Python 3.13 compatibility

---
 logutils/dictconfig.py   |  9 +++++++--
 tests/test_dictconfig.py | 14 ++++++++++----
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/logutils/dictconfig.py b/logutils/dictconfig.py
index c774552..2e33031 100644
--- a/logutils/dictconfig.py
+++ b/logutils/dictconfig.py
@@ -290,7 +290,12 @@ class DictConfigurator(BaseConfigurator):
             raise ValueError("Unsupported version: %s" % config['version'])
         incremental = config.pop('incremental', False)
         EMPTY_DICT = {}
-        logging._acquireLock()
+        # Python 3.13+ renamed these functions
+        try:
+            acquire, release = logging._prepareFork, logging._afterFork
+        except AttributeError:
+            acquire, release = logging._acquireLock, logging._releaseLock
+        acquire()
         try:
             if incremental:
                 handlers = config.get('handlers', EMPTY_DICT)
@@ -431,7 +436,7 @@ class DictConfigurator(BaseConfigurator):
                         raise ValueError('Unable to configure root '
                                          'logger: %s' % e)
         finally:
-            logging._releaseLock()
+            release()
 
     def configure_formatter(self, config):
         """Configure a formatter from a dictionary."""
diff --git a/tests/test_dictconfig.py b/tests/test_dictconfig.py
index 3aee984..e56d267 100644
--- a/tests/test_dictconfig.py
+++ b/tests/test_dictconfig.py
@@ -30,6 +30,12 @@ def handlerFunc():
 class CustomHandler(logging.StreamHandler):
     pass
 
+# Python 3.13+ renamed these functions
+try:
+    acquire, release = logging._prepareFork, logging._afterFork
+except AttributeError:
+    acquire, release = logging._acquireLock, logging._releaseLock
+
 class ConfigDictTest(unittest.TestCase):
 
     """Reading logging config from a dictionary."""
@@ -39,7 +45,7 @@ class ConfigDictTest(unittest.TestCase):
         self.adapter = LoggerAdapter(l, {})
 
         logger_dict = logging.getLogger().manager.loggerDict
-        logging._acquireLock()
+        acquire()
         try:
             self.saved_handlers = logging._handlers.copy()
             self.saved_handler_list = logging._handlerList[:]
@@ -50,7 +56,7 @@ class ConfigDictTest(unittest.TestCase):
                 self.saved_level_to_name = logging._levelToName.copy()
                 self.saved_name_to_level = logging._nameToLevel.copy()
         finally:
-            logging._releaseLock()
+            release()
 
         self.root_logger = logging.getLogger("")
         self.original_logging_level = self.root_logger.getEffectiveLevel()
@@ -58,7 +64,7 @@ class ConfigDictTest(unittest.TestCase):
 
     def tearDown(self):
         self.root_logger.setLevel(self.original_logging_level)
-        logging._acquireLock()
+        acquire()
         try:
             if hasattr(logging, '_levelNames'):
                 logging._levelNames.clear()
@@ -75,7 +81,7 @@ class ConfigDictTest(unittest.TestCase):
             loggerDict.clear()
             loggerDict.update(self.saved_loggers)
         finally:
-            logging._releaseLock()
+            release()
 
     message_num = 0