functools¶
Higher-order functions and operations on callable objects.
Functions¶
functools.reduce(func: (T, T) -> T, iterable: Iterable[T], initial: T) -> T¶
Apply function of two arguments cumulatively to the items of iterable, with an initial value.
functools.reduce(func: (T, T) -> T, iterable: list[T]) -> T¶
Apply function of two arguments cumulatively to the items of iterable, so as to reduce the iterable to a single value.
functools.reduce(func: (T, T) -> T, iterable: list[T], initial: T) -> T¶
Apply function of two arguments cumulatively to the items of iterable, starting with initial value.
functools.cache_info(hits: int, misses: int, max_size: int | None, current_size: int) -> record¶
Snapshot of cache statistics returned by
LruCache{TKey, TResult}.CacheInfo.
functools.get_or_add(key: TKey, factory: (TKey) -> TResult) -> TResult¶
Looks up the cached value for key, or computes it via factory and stores the result.
Parameters:
key(TKey) -- The cache key.factory((TKey) -> TResult) -- A factory invoked on miss to compute the value.
Returns: The cached or freshly-computed value.
functools.cache_info() -> CacheInfo¶
Returns a snapshot of cache statistics.
functools.cache_clear()¶
Clears all cached entries and resets the hit/miss counters.