gh-127065: Make methodcaller thread-safe and re-entrant by eendebakpt · Pull Request #127245 · python/cpython

import pyperf

setup = """
from operator import methodcaller as mc
arr = []
call = mc('sort')
call_kwarg = mc('sort', reverse=True)
"""

runner = pyperf.Runner()
runner.timeit(name="call", stmt="call(arr)", setup=setup)
runner.timeit(name="creation", stmt="call = mc('sort')", setup=setup)
runner.timeit(name="creation+call", stmt="call = mc('sort'); call(arr)", setup=setup)
runner.timeit(name="call kwarg", stmt="call_kwarg(arr)", setup=setup)
runner.timeit(name="creation kwarg", stmt="call = mc('sort', reverse=True)", setup=setup)
runner.timeit(name="creation+call kwarg", stmt="call = mc('sort', reverse=True); call(arr)", setup=setup)