bpo-14112: Allow beginners to explore shallowness in greater depth ;-) (GH-15465) (GH-15469)
(cherry picked from commit 69ee87e99cfe0b79389cffa92d126af868baf353)
Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>
diff --git a/Doc/library/copy.rst b/Doc/library/copy.rst
index c7bd89f..a8e8bfb 100644
--- a/Doc/library/copy.rst
+++ b/Doc/library/copy.rst
@@ -31,6 +31,7 @@
Raised for module specific errors.
+.. _shallow_vs_deep_copy:
The difference between shallow and deep copying is only relevant for compound
objects (objects that contain other objects, like lists or class instances):
diff --git a/Doc/tutorial/introduction.rst b/Doc/tutorial/introduction.rst
index a4dbd63..2a16661 100644
--- a/Doc/tutorial/introduction.rst
+++ b/Doc/tutorial/introduction.rst
@@ -394,7 +394,8 @@
[9, 16, 25]
All slice operations return a new list containing the requested elements. This
-means that the following slice returns a new (shallow) copy of the list::
+means that the following slice returns a
+:ref:`shallow copy <shallow_vs_deep_copy>` of the list::
>>> squares[:]
[1, 4, 9, 16, 25]