New submission from Shailesh Hegde:

https://docs.python.org/<version>/library/copy.html

"Two problems often exist with deep copy operations that don’t exist with 
shallow copy operations:

Recursive objects (compound objects that, directly or indirectly, contain a 
reference to themselves) may cause a recursive loop.
Because deep copy copies everything it may copy too much, e.g., administrative 
data structures that should be shared even between copies."

I believe the last line in above paragraph is missing a 'not' ahead of 'be 
shared'. 

It should read:
"administrative data structures that should be not shared even between copies"

----------
assignee: docs@python
components: Documentation
messages: 226123
nosy: docs@python, shlsh
priority: normal
severity: normal
status: open
title: Documentation on deepcopy's problems is misleading
versions: Python 2.7, Python 3.1, Python 3.2, Python 3.3, Python 3.4, Python 3.5

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue22305>
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