[Python-Dev] (no subject) (original) (raw)
Greg Ewing greg.ewing at canterbury.ac.nz
Wed Feb 11 06:34:15 CET 2015
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Victor Stinner wrote:
Le 10 févr. 2015 06:48, "Greg Ewing" <greg.ewing at canterbury.ac.nz_ _<mailto:greg.ewing at canterbury.ac.nz>> a écrit : > It could potentially be a little more efficient by > eliminating the construction of an intermediate list.
Is it the case in the implementation? If it has to create a temporary list/tuple, I will prefer to not use it.
The function call machinery will create a new tuple for the positional args in any case. But if you manually combine your * args into a tuple before calling, there are two tuple allocations being done. Passing all the
- args directly into the call would allow one of them to be avoided.
Similarly for dicts and ** args.
-- Greg
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