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Author serhiy.storchaka
Recipients Aaron.Meurer, BreamoreBoy, amaury.forgeotdarc, anacrolix, asvetlov, brechtm, eric.snow, ezio.melotti, giampaolo.rodola, jcea, josh.r, kachayev, kmike, meador.inge, pitrou, poke, python-dev, rhettinger, scoder, serhiy.storchaka
Date 2015-05-24.13:18:46
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <1432473527.13.0.89675971569.issue14373@psf.upfronthosting.co.za>
In-reply-to
Content 
The problem is in property descriptor getter. It uses cached tuple for args and can unexpectedly modify it. Opened issue24276 for fixing this bug.

Another way is to remove fast path in lru_cache_make_key() and always copy args tuple.
History
Date User Action Args
2015-05-24 13:18:47serhiy.storchakasetrecipients: + serhiy.storchaka, rhettinger, jcea, amaury.forgeotdarc, pitrou, scoder, giampaolo.rodola, ezio.melotti, asvetlov, poke, meador.inge, anacrolix, Aaron.Meurer, BreamoreBoy, python-dev, eric.snow, brechtm, kmike, kachayev, josh.r
2015-05-24 13:18:47serhiy.storchakasetmessageid: <1432473527.13.0.89675971569.issue14373@psf.upfronthosting.co.za>
2015-05-24 13:18:47serhiy.storchakalinkissue14373 messages
2015-05-24 13:18:46serhiy.storchakacreate