[New-bugs-announce] [issue27275] KeyError thrown by optimised collections.OrderedDict.popitem()

[William Pitcock]

New submission from William Pitcock:

The C-based optimised version of collections.OrderedDict occasionally throws KeyErrors when deleting items.

See https://github.com/mailgun/expiringdict/issues/16 for an example of this regression.

Backporting 3.6's patches to 3.5.1 does not resolve the issue. :(

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components: Library (Lib)
messages: 267957
nosy: kaniini
priority: normal
severity: normal
status: open
title: KeyError thrown by optimised collections.OrderedDict.popitem()
type: behavior
versions: Python 3.5, Python 3.6

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue27275>
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