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Author rhettinger
Recipients eric.smith, paul.moore, rhettinger, sreedevi.ha, steven.daprano, terry.reedy
Date 2020-09-25.18:37:27
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <>
Sorry for the wording of the last message.  Go ahead with whatever you would like do :-) 

Was only trying to point-out that the generator semantics don't interact nicely with slice assignments:

    $ python3.9 -m timeit -s 'a=list(range(1000))' 'b=a[:]' 'b[:]=(x for x in a)'
    5000 loops, best of 5: 46.6 usec per loop

    $ python3.9 -m timeit -s 'a=list(range(1000))' 'b=a[:]' 'b[:]=[x for x in a]'
    10000 loops, best of 5: 26.3 usec per loop
Date User Action Args
2020-09-25 18:37:27rhettingersetrecipients: + rhettinger, terry.reedy, paul.moore, eric.smith, steven.daprano, sreedevi.ha
2020-09-25 18:37:27rhettingersetmessageid: <>
2020-09-25 18:37:27rhettingerlinkissue41774 messages
2020-09-25 18:37:27rhettingercreate