Stub out a brain for stdlib datetime

Author: jacobtylerwalls

astroid/brain/brain_datetime.py

@@ -0,0 +1,31 @@
+# Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html
+# For details: https://github.com/pylint-dev/astroid/blob/main/LICENSE
+# Copyright (c) https://github.com/pylint-dev/astroid/blob/main/CONTRIBUTORS.txt
+
+import textwrap
+
+from astroid.brain.helpers import register_module_extender
+from astroid.builder import AstroidBuilder
+from astroid.const import PY312_PLUS
+from astroid.manager import AstroidManager
+
+
+def datetime_transform():
+    """The datetime module was C-accelerated in Python 3.12, so we
+    lack a Python source."""
+    return AstroidBuilder(AstroidManager()).string_build(
+        textwrap.dedent(
+            """
+    class date: ...
+    class time: ...
+    class datetime(date): ...
+    class timedelta: ...
+    class tzinfo: ...
+    class timezone(tzinfo): ...
+    """
+        )
+    )
+
+
+if PY312_PLUS:
+    register_module_extender(AstroidManager(), "datetime", datetime_transform)