Python 3.13.0 speed

[tim.one (Tim Peters)]

@superlopuh

def drive(len=len, print=print, set=set, str=str):

Is this so that the functions are also locals, which makes them faster to look up? I’ve never seen this approach before.

Don’t do it . It’s extreme micro-optimization (yes, to change global lookups to local), and doesn’t help at all under the PyPy implementation.

For “normal code”, I never do this anymore. In context, I wanted to do everything possible to put CPython and PyPy on a level playing field.

[cfbolz (CF Bolz-Tereick)]

@tim.one

[it] doesn’t help at all under the PyPy implementation.

the ‘builtins as locals’ micro-optimization actually makes things slightly slower on pypy.