first comit

venv/lib/python3.10/site-packages/traitlets/log.py

@@ -0,0 +1,31 @@
+"""Grab the global logger instance."""
+
+# Copyright (c) IPython Development Team.
+# Distributed under the terms of the Modified BSD License.
+from __future__ import annotations
+
+import logging
+from typing import Any
+
+_logger: logging.Logger | logging.LoggerAdapter[Any] | None = None
+
+
+def get_logger() -> logging.Logger | logging.LoggerAdapter[Any]:
+    """Grab the global logger instance.
+
+    If a global Application is instantiated, grab its logger.
+    Otherwise, grab the root logger.
+    """
+    global _logger  # noqa: PLW0603
+
+    if _logger is None:
+        from .config import Application
+
+        if Application.initialized():
+            _logger = Application.instance().log
+        else:
+            _logger = logging.getLogger("traitlets")
+            # Add a NullHandler to silence warnings about not being
+            # initialized, per best practice for libraries.
+            _logger.addHandler(logging.NullHandler())
+    return _logger