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Author serhiy.storchaka
Recipients alexandre.vassalotti, lukasz.langa, serhiy.storchaka
Date 2018-07-24.09:16:42
SpamBayes Score -1.0
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Message-id <1532423802.47.0.56676864532.issue34204@psf.upfronthosting.co.za>
In-reply-to
Content 
The default pickle protocol is 4 now. But shelve still uses the pickle protocol 3. Shouldn't it be bumped? Shouldn't shelve use pickle.DEFAULT_PROTOCOL by default?

Disadvantages:

1. This will make shelve files incompatible with Python 3.3 by default.

2. Protocol 4 adds 9 bytes of overhead in comparison with protocol 3. This can be too large for the shelve containing a lot of small objects. Maybe strip redundant frame header for small pickles?
History
Date User Action Args
2018-07-24 09:16:42serhiy.storchakasetrecipients: + serhiy.storchaka, alexandre.vassalotti, lukasz.langa
2018-07-24 09:16:42serhiy.storchakasetmessageid: <1532423802.47.0.56676864532.issue34204@psf.upfronthosting.co.za>
2018-07-24 09:16:42serhiy.storchakalinkissue34204 messages
2018-07-24 09:16:42serhiy.storchakacreate