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-rw-r--r--Doc/reference/datamodel.rst4
1 files changed, 4 insertions, 0 deletions
diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index bf9287c..9e28fe9 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -1600,6 +1600,10 @@ variable. Space is saved because *__dict__* is not created for each instance.
Notes on using *__slots__*
+* When inheriting from a class without *__slots__*, the *__dict__* attribute of
+ that class will always be accessible, so a *__slots__* definition in the
+ subclass is meaningless.
+
* Without a *__dict__* variable, instances cannot be assigned new variables not
listed in the *__slots__* definition. Attempts to assign to an unlisted
variable name raises :exc:`AttributeError`. If dynamic assignment of new