Issue #19362: Tweek len() doc and docstring to expand the indicated range of
arguments. Original patch by Gareth Rees.
diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst
index 7656414..80ce681 100644
--- a/Doc/library/functions.rst
+++ b/Doc/library/functions.rst
@@ -726,7 +726,8 @@
.. function:: len(s)
Return the length (the number of items) of an object. The argument may be a
- sequence (string, tuple or list) or a mapping (dictionary).
+ sequence (such as a string, bytes, tuple, list, or range) or a collection
+ (such as a dictionary, set, or frozen set).
.. function:: list([iterable])
diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index d22dca2..f052574 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -1323,7 +1323,7 @@
PyDoc_STRVAR(len_doc,
"len(object) -> integer\n\
\n\
-Return the number of items of a sequence or mapping.");
+Return the number of items of a sequence or collection.");
static PyObject *