From f3c5714c47681264e1346c9ead3b7ad0f29e514e Mon Sep 17 00:00:00 2001
From: Sigurd Spieckermann <2206639+sisp@users.noreply.github.com>
Date: Fri, 29 Sep 2023 16:08:13 +0200
Subject: [PATCH] Fix backwards compatibility of type-checking when using
 deprecated `FieldValidationInfo` (#995)

---
 python/pydantic_core/core_schema.py | 3 +++
 tests/test_typing.py                | 4 ++++
 2 files changed, 7 insertions(+)

diff --git a/python/pydantic_core/core_schema.py b/python/pydantic_core/core_schema.py
index 2d7061ffd..347b93239 100644
--- a/python/pydantic_core/core_schema.py
+++ b/python/pydantic_core/core_schema.py
@@ -3909,6 +3909,9 @@ def general_plain_validator_function(*args, **kwargs):
     'FieldWrapValidatorFunction': WithInfoWrapValidatorFunction,
 }
 
+if TYPE_CHECKING:
+    FieldValidationInfo = ValidationInfo
+
 
 def __getattr__(attr_name: str) -> object:
     new_attr = _deprecated_import_lookup.get(attr_name)
diff --git a/tests/test_typing.py b/tests/test_typing.py
index 0d527c619..dcd2f267a 100644
--- a/tests/test_typing.py
+++ b/tests/test_typing.py
@@ -23,6 +23,10 @@ def foo(bar: str) -> None:
     ...
 
 
+def validator_deprecated(value: Any, info: core_schema.FieldValidationInfo) -> None:
+    ...
+
+
 def validator(value: Any, info: core_schema.ValidationInfo) -> None:
     ...