[issue11562] += on list inside a tuple raises TypeError but succeeds anyway

[Nick Coghlan]

Nick Coghlan <ncoghlan at gmail.com> added the comment:

As Daniel noted, this behaviour is in accordance with the language definition.

It's obscure and surprising behaviour, but it isn't wrong.

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nosy: +ncoghlan
resolution:  -> invalid
stage: test needed -> committed/rejected
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue11562>
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