[Python-Dev] RFC: PEP 509: Add a private version to dict
Stefan Behnel
stefan_ml at behnel.de
Fri Apr 15 05:03:21 EDT 2016
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Fri Apr 15 05:03:21 EDT 2016
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Victor Stinner schrieb am 15.04.2016 um 10:20: > Le vendredi 15 avril 2016, Stefan Behnel a écrit : > >> How can that be achieved? If the tag is just a sequentially growing number, >> creating two dicts and applying one operation to the first one should give >> both the same version tag, right? >> > > Armin didn't propose to get ride of the global version. > > a = dict() # version = 0 > b = dict() # version = 0 > a['key'] = 'value' # version = 300 > b['key'] = 'value' # version = 301 Ah, sorry, should have read the PEP more closely. It's *always* the global version that gets incremented. Then yes, that's a safe point of distinction for dicts and their status. Stefan
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