From: Terry Jan Reedy <tjreedy@udel.edu>
Date: Wed, 28 Oct 2015 07:14:56 +0000 (-0400)
Subject: Issue #25432: Explain isinstance behaviour when type is a tuple.
X-Git-Tag: v3.5.1rc1~122^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=68b6874f59d80c41785a4d4a6874be89ad08fcd5;p=python

Issue #25432: Explain isinstance behaviour when type is a tuple.
---

diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst
index 5377335a6e..97c9f8ded1 100644
--- a/Doc/library/functions.rst
+++ b/Doc/library/functions.rst
@@ -702,10 +702,10 @@ are always available.  They are listed here in alphabetical order.
    Return true if the *object* argument is an instance of the *classinfo*
    argument, or of a (direct, indirect or :term:`virtual <abstract base
    class>`) subclass thereof.  If *object* is not
-   an object of the given type, the function always returns false.  If
-   *classinfo* is not a class (type object), it may be a tuple of type objects,
-   or may recursively contain other such tuples (other sequence types are not
-   accepted).  If *classinfo* is not a type or tuple of types and such tuples,
+   an object of the given type, the function always returns false.
+   If *classinfo* is a tuple of type objects (or recursively, other such
+   tuples), return true if *object* is an instance of any of the types.
+   If *classinfo* is not a type or tuple of types and such tuples,
    a :exc:`TypeError` exception is raised.