[issue39110] UserList-subclass Tree slicing changes node attribute

[Terry J. Reedy]

Change by Terry J. Reedy <tjreedy at udel.edu>:


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status: pending -> open
title: It seems that list() changes the value of the parameter -> UserList-subclass Tree slicing changes node attribute

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39110>
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