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bpo-14112: Allow beginners to explore shallowness in greater depth ;-) (GH-15465)

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Raymond Hettinger 2019-08-24 11:15:44 -07:00 • committed by GitHub
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Doc/library/copy.rst
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@ -31,6 +31,7 @@ Interface summary:
Raised for module specific errors. Raised for module specific errors.
.. _shallow_vs_deep_copy:
The difference between shallow and deep copying is only relevant for compound The difference between shallow and deep copying is only relevant for compound
objects (objects that contain other objects, like lists or class instances): objects (objects that contain other objects, like lists or class instances):

3
Doc/tutorial/introduction.rst
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@ -394,7 +394,8 @@ indexed and sliced::
[9, 16, 25] [9, 16, 25]
All slice operations return a new list containing the requested elements. This 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[:] >>> squares[:]
[1, 4, 9, 16, 25] [1, 4, 9, 16, 25]