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authorSenthil Kumaran <senthil@uthcode.com>2012-02-09 18:26:59 +0800
committerSenthil Kumaran <senthil@uthcode.com>2012-02-09 18:26:59 +0800
commit8dacf192192309d03dd433933d776bcc6527f538 (patch)
tree04caaf9e152b9ecb6a44846f8e4356cac244e0d6 /Doc/library/copy.rst
parentef41ad186526cd9883acb2955d313f7f9f6d2c66 (diff)
downloadcpython-8dacf192192309d03dd433933d776bcc6527f538.tar.gz
Issue #9021 - Introduce copy module better. Doc changes suggested by Terry
Reedy.
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.. module:: copy
:synopsis: Shallow and deep copy operations.
-This module provides generic (shallow and deep) copying operations.
+Assignment statements in Python do not copy objects, they create bindings
+between a target and an object. For collections that are mutable or contain
+mutable items, a copy is sometimes needed so one can change one copy without
+changing the other. This module provides generic shallow and deep copy
+operations (explained below).
Interface summary: