On 04.12.15 23:44, Bill Winslow wrote:
> def deterministic_recursive_calculation(input, partial_state=None):
>      condition = do_some_calculations(input)
>      if condition:
>          return deterministic_recursive_calculation(reduced_input,
> some_state)
>
> I want to memoize this function for obvious reasons, but I need the
> lru_cache to ignore the partial_state argument, for its value does not
> affect the output, only the computation expense.

Memoize a closure.

def deterministic_calculation(input):
     some_state = ...
     @lru_cache()
     def recursive_calculation(input):
         nonlocal some_state
         ...
         return recursive_calculation(reduced_input)
     return recursive_calculation(input)