1 files changed, 7 insertions, 6 deletions
diff --git a/Lib/inspect.py b/Lib/inspect.py
index bf4f87d..b65bec7 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -527,17 +527,18 @@ def _finddoc(obj):
             cls = self
         else:
             cls = self.__class__
-    elif ismethoddescriptor(obj) or isdatadescriptor(obj):
-        name = obj.__name__
-        cls = obj.__objclass__
-        if getattr(cls, name) is not obj:
-            return None
+    # Should be tested before isdatadescriptor().
     elif isinstance(obj, property):
-        func = f.fget
+        func = obj.fget
         name = func.__name__
         cls = _findclass(func)
         if cls is None or getattr(cls, name) is not obj:
             return None
+    elif ismethoddescriptor(obj) or isdatadescriptor(obj):
+        name = obj.__name__
+        cls = obj.__objclass__
+        if getattr(cls, name) is not obj:
+            return None
     else:
         return None