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The PyTuple_Pack method is relatively slow because it is a variadic function. For various cases (in particular tuples of size 1 and 2) we can replace PyTuple_Pack with PyTuple_FromArray (introduced in #111489)
Note: the remaining cases of PyTuple_Pack(1, ...) and PyTuple_Pack(2, ...) are for the most part not performance critical. If opening a PR, please create proper benchmarks (using pyperf, hyperfine or some other benchmarking package) showing the performance gain for the change.
Feature or enhancement
Proposal:
The
PyTuple_Packmethod is relatively slow because it is a variadic function. For various cases (in particular tuples of size 1 and 2) we can replacePyTuple_PackwithPyTuple_FromArray(introduced in #111489)Has this already been discussed elsewhere?
No response given
Links to previous discussion of this feature:
No response
Linked PRs
dict.items()symmetric difference viaPyTuple_FromArray#144771object_pairs_hookviaPyTuple_FromArray#144772Note: the remaining cases of
PyTuple_Pack(1, ...)andPyTuple_Pack(2, ...)are for the most part not performance critical. If opening a PR, please create proper benchmarks (using pyperf, hyperfine or some other benchmarking package) showing the performance gain for the change.