Author serhiy.storchaka
Recipients Demur Rumed, eric.smith, mjpieters, serhiy.storchaka, ztane
Date 2016-07-13.20:11:36
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Marked as misclassified Yes
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Proposed patch adds the BUILD_STRING opcode and speeds up PyObject_Format() in common cases. It makes f-strings the fastest method for simple formatting.

$ ./python -m timeit -s "x = 2" -- 'f"X is {x}"'
1000000 loops, best of 3: 0.347 usec per loop
Date User Action Args
2016-07-13 20:11:40serhiy.storchakasetrecipients: + serhiy.storchaka, mjpieters, eric.smith, ztane, Demur Rumed
2016-07-13 20:11:37serhiy.storchakasetmessageid: <>
2016-07-13 20:11:37serhiy.storchakalinkissue27078 messages
2016-07-13 20:11:37serhiy.storchakacreate