This issue tracker has been migrated to GitHub, and is currently read-only.
For more information, see the GitHub FAQs in the Python's Developer Guide.

Author serhiy.storchaka
Recipients georg.brandl, larry, python-dev, serhiy.storchaka, taleinat
Date 2015-06-07.21:36:24
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <>
The operator module is rarely used in the stdlib, but if it is used in user code (mainly with map(), reduce() or like) the performance often is important. You can use microbenchmarks like following (operator.add is twice faster than lambda x, y: x + y).

    ./python -m timeit -s "import operator; a = list(range(10000)); b = a[:]" -- "list(map(operator.add, a, b))"
Date User Action Args
2015-06-07 21:36:24serhiy.storchakasetrecipients: + serhiy.storchaka, georg.brandl, taleinat, larry, python-dev
2015-06-07 21:36:24serhiy.storchakasetmessageid: <>
2015-06-07 21:36:24serhiy.storchakalinkissue20186 messages
2015-06-07 21:36:24serhiy.storchakacreate