bpo-37838: get_type_hints for wrapped functions with forward reference (GH-17126)


https://bugs.python.org/issue37838
(cherry picked from commit 0aca3a3a1e68b4ca2d334ab5255dfc267719096e)

Co-authored-by: benedwards14 <53377856+benedwards14@users.noreply.github.com>
diff --git a/Lib/typing.py b/Lib/typing.py
index bd30da9..69f6d98 100644
--- a/Lib/typing.py
+++ b/Lib/typing.py
@@ -1234,7 +1234,11 @@
         if isinstance(obj, types.ModuleType):
             globalns = obj.__dict__
         else:
-            globalns = getattr(obj, '__globals__', {})
+            nsobj = obj
+            # Find globalns for the unwrapped object.
+            while hasattr(nsobj, '__wrapped__'):
+                nsobj = nsobj.__wrapped__
+            globalns = getattr(nsobj, '__globals__', {})
         if localns is None:
             localns = globalns
     elif localns is None: