#13387: merge with 3.2.

1 files changed, 2 insertions, 0 deletions

diff --git a/Doc/library/unittest.rst b/Doc/library/unittest.rst
index 7340588d11..45270db55f 100644
--- a/Doc/library/unittest.rst
+++ b/Doc/library/unittest.rst
@@ -933,6 +933,8 @@ Test cases
 
       Test that *obj* is (or is not) an instance of *cls* (which can be a
       class or a tuple of classes, as supported by :func:`isinstance`).
+      To check for a specific type (without including superclasses) use
+      :func:`assertIs(type(obj), cls) <assertIs>`.
 
       .. versionadded:: 3.2