Minor change to default lru size. Set default to a power of two.

Doc/library/functools.rst

@@ -40,7 +40,7 @@ The :mod:`functools` module defines the following functions:
    .. versionadded:: 3.2
 
 
-.. decorator:: lru_cache(maxsize=100, typed=False)
+.. decorator:: lru_cache(maxsize=128, typed=False)
 
    Decorator to wrap a function with a memoizing callable that saves up to the
    *maxsize* most recent calls.  It can save time when an expensive or I/O bound

Lib/functools.py

@@ -166,7 +166,7 @@ class _CacheKey(list):
     def __hash__(self):
         return self.hashvalue
 
-def lru_cache(maxsize=100, typed=False):
+def lru_cache(maxsize=128, typed=False):
     """Least-recently-used cache decorator.
 
     If *maxsize* is set to None, the LRU features are disabled and the cache