Decorator

gto76 · gto76 · commit 0def444901f0 · 2019-01-28T16:46:03.000+01:00
diff --git a/README.md b/README.md
@@ -622,7 +622,7 @@ def add(x, y):
 ```
 
 ### LRU Cache
-**Decorator that caches function's return values.**
+**Decorator that caches function's return values. All arguments must be hashable.**
 ```python
 @lru_cache(maxsize=None)
 def fib(n):
