Issue #19362: Tweek len() doc and docstring to expand the indicated range of

terryjreedy · terryjreedy · commit f2fb73f6757d · 2014-06-16T03:05:37.000-04:00
arguments. Original patch by Gareth Rees.
diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst
@@ -742,7 +742,8 @@ are always available.  They are listed here in alphabetical order.
 .. 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).
 
 
 .. _func-list:
diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
@@ -1327,7 +1327,7 @@ builtin_len(PyObject *self, PyObject *v)
 PyDoc_STRVAR(len_doc,
 "len(object)\n\
 \n\
-Return the number of items of a sequence or mapping.");
+Return the number of items of a sequence or collection.");
 
 
 static PyObject *
