How Fast is Python 3.15?

you should include a faster version of the fibonacci function with exponentiation by squaring

  def fibonacci(k):
    a,b=(0,1)
    for i in range(k.bit_length()-1,-1,-1):
      d=a**2
      c=2*a*b-d
      d+=b**2
      (a,b)=(d,c+d) if k>>i&1 else (c,d)
    return a

you can also encode polynomials into integers; see https://mathstodon.xyz/@peterluschny/116320199782572958 and the following prog from https://codegolf.stackexchange.com/a/279771

  lambda n:pow(p:=2<<n,n,p*p+~p)//p

also you could at least wrap the existing one in a `functools.cache`

35 years on since the first public Python release and there's still so much room for improvement in its performance. These tests by Miguel are a useful quick check on that progress in 3.15 even if as he admits it's impossible to get "an objective and universal measure of the performance of a programming language".

So Claude can convert python code bases to rust or golang, and give you an easy 10x speed boost. Much better than waiting for Python performance to improve

2 benchmarks only? A very broad sense of coverage

My pet peeve are numbers with too many decimals. If you only run a benchmark three times and take the arithmetic mean you don't have five or more significant digits. At best, you have two. And for benchmarking the geometric mean is a far superior mean.

Not as fast as https://github.com/shedskin/shedskin