Cache functions to speed up recursion
From Pypi:
python -m pip install recache
From GitHub:
python -m pip install git+https://github.com/donno2048/recache
from recache import cache
def fib(n): # slow recursion
if n < 0: return None
if n <= 1: return 1
return fib(n - 1) + fib(n - 2)
@cache
def cfib(n): # fast recursion
if n < 0: return None
if n <= 1: return 1
return cfib(n - 1) + cfib(n - 2)To see the exact timing see The notebook