Add python 3.10 definition of Self

lsst · Jul 18, 2023 · 2e129be · 2e129be
1 parent 37afb3f
commit 2e129be
Showing 1 changed file with 10 additions and 1 deletion.
diff --git a/python/lsst/daf/butler/_compat.py b/python/lsst/daf/butler/_compat.py
@@ -23,12 +23,21 @@
 
 __all__ = ["PYDANTIC_V2", "_BaseModelCompat"]
 
+import sys
 from collections.abc import Callable, Mapping
-from typing import Any, Self
+from typing import Any
 
 from pydantic import BaseModel
 from pydantic.version import VERSION as PYDANTIC_VERSION
 
+if sys.version_info >= (3, 11, 0):
+    from typing import Self
+else:
+    from typing import TypeVar
+
+    Self = TypeVar("Self", bound="_BaseModelCompat")
+
+
 PYDANTIC_V2 = PYDANTIC_VERSION.startswith("2.")