[issue9702] Python violates most users expectations via the modification differences of immutable and mutable objects in methods

[Raymond Hettinger]

Raymond Hettinger <rhettinger at users.sourceforge.net> added the comment:

The current design has existed for almost twenty years.
It is deeply embedded in the language.   For better or
worse, it cannot and won't change.

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nosy: +rhettinger

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue9702>
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