[issue36030] add internal API function to create tuple without items array initialization

[STINNER Victor]

STINNER Victor <vstinner at redhat.com> added the comment:

Can you please convert msg336142 into a perf script? See the doc:
https://perf.readthedocs.io/en/latest/developer_guide.html

And then run again these benchmarks on PR 12052.

If you have a script, you can do:

./python-ref script.py -o ref.json
./python-untracked script.py -o untracked.json
./python-untracked -m perf compare_to ref.json untracked.json

https://perf.readthedocs.io/en/latest/cli.html#compare-to-cmd

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<https://bugs.python.org/issue36030>
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