Properly document copy and deepcopy as functions.
diff --git a/Doc/library/copy.rst b/Doc/library/copy.rst
index 89b668d..b3ce51f 100644
--- a/Doc/library/copy.rst
+++ b/Doc/library/copy.rst
@@ -1,25 +1,28 @@
-
:mod:`copy` --- Shallow and deep copy operations
================================================
.. module:: copy
:synopsis: Shallow and deep copy operations.
-
-.. index::
- single: copy() (in copy)
- single: deepcopy() (in copy)
-
This module provides generic (shallow and deep) copying operations.
-Interface summary::
- import copy
+Interface summary:
- x = copy.copy(y) # make a shallow copy of y
- x = copy.deepcopy(y) # make a deep copy of y
+.. function:: copy(x)
-For module specific errors, :exc:`copy.error` is raised.
+ Return a shallow copy of *x*.
+
+
+.. function:: deepcopy(x)
+
+ Return a deep copy of *x*.
+
+
+.. exception:: error
+
+ Raised for module specific errors.
+
The difference between shallow and deep copying is only relevant for compound
objects (objects that contain other objects, like lists or class instances):