diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst
index 0a5b88280e2..1e2c47cd7f5 100644
--- a/Doc/library/stdtypes.rst
+++ b/Doc/library/stdtypes.rst
@@ -1409,6 +1409,22 @@ arbitrary object).
 Note that while lists allow their items to be of any type, bytearray object
 "items" are all integers in the range 0 <= x < 256.
 
+.. index::
+   triple: operations on; sequence; types
+   triple: operations on; list; type
+   pair: subscript; assignment
+   pair: slice; assignment
+   statement: del
+   single: append() (sequence method)
+   single: extend() (sequence method)
+   single: count() (sequence method)
+   single: index() (sequence method)
+   single: insert() (sequence method)
+   single: pop() (sequence method)
+   single: remove() (sequence method)
+   single: reverse() (sequence method)
+   single: sort() (sequence method)
+
 +------------------------------+--------------------------------+---------------------+
 | Operation                    | Result                         | Notes               |
 +==============================+================================+=====================+
@@ -1453,21 +1469,6 @@ Note that while lists allow their items to be of any type, bytearray object
 | ``s.sort([key[, reverse]])`` | sort the items of *s* in place | (6), (7), (8)       |
 +------------------------------+--------------------------------+---------------------+
 
-.. index::
-   triple: operations on; sequence; types
-   triple: operations on; list; type
-   pair: subscript; assignment
-   pair: slice; assignment
-   statement: del
-   single: append() (sequence method)
-   single: extend() (sequence method)
-   single: count() (sequence method)
-   single: index() (sequence method)
-   single: insert() (sequence method)
-   single: pop() (sequence method)
-   single: remove() (sequence method)
-   single: reverse() (sequence method)
-   single: sort() (sequence method)
 
 Notes:
 
diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index 3585ca7a7fb..3d1d26d3fcc 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -816,6 +816,22 @@ Internal types
       objects, code objects are immutable and contain no references (directly or
       indirectly) to mutable objects.
 
+      .. index::
+         single: co_argcount (code object attribute)
+         single: co_code (code object attribute)
+         single: co_consts (code object attribute)
+         single: co_filename (code object attribute)
+         single: co_firstlineno (code object attribute)
+         single: co_flags (code object attribute)
+         single: co_lnotab (code object attribute)
+         single: co_name (code object attribute)
+         single: co_names (code object attribute)
+         single: co_nlocals (code object attribute)
+         single: co_stacksize (code object attribute)
+         single: co_varnames (code object attribute)
+         single: co_cellvars (code object attribute)
+         single: co_freevars (code object attribute)
+
       Special read-only attributes: :attr:`co_name` gives the function name;
       :attr:`co_argcount` is the number of positional arguments (including arguments
       with default values); :attr:`co_nlocals` is the number of local variables used
@@ -833,22 +849,6 @@ Internal types
       :attr:`co_stacksize` is the required stack size (including local variables);
       :attr:`co_flags` is an integer encoding a number of flags for the interpreter.
 
-      .. index::
-         single: co_argcount (code object attribute)
-         single: co_code (code object attribute)
-         single: co_consts (code object attribute)
-         single: co_filename (code object attribute)
-         single: co_firstlineno (code object attribute)
-         single: co_flags (code object attribute)
-         single: co_lnotab (code object attribute)
-         single: co_name (code object attribute)
-         single: co_names (code object attribute)
-         single: co_nlocals (code object attribute)
-         single: co_stacksize (code object attribute)
-         single: co_varnames (code object attribute)
-         single: co_cellvars (code object attribute)
-         single: co_freevars (code object attribute)
-
       .. index:: object: generator
 
       The following flag bits are defined for :attr:`co_flags`: bit ``0x04`` is set if