bpo-36326: Let inspect.getdoc() find docstrings for __slots__ (GH-12498)

1 files changed, 4 insertions, 1 deletions

diff --git a/Lib/inspect.py b/Lib/inspect.py
index b8a142232b..8c398bd353 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -582,9 +582,12 @@ def _finddoc(obj):
         cls = obj.__objclass__
         if getattr(cls, name) is not obj:
             return None
+        if ismemberdescriptor(obj):
+            slots = getattr(cls, '__slots__', None)
+            if isinstance(slots, dict) and name in slots:
+                return slots[name]
     else:
         return None
-
     for base in cls.__mro__:
         try:
             doc = getattr(base, name).__doc__