Fix some RUF012 per file ignores

other/lfu_cache.py

@@ -196,9 +196,6 @@ class LFUCache(Generic[T, U]):
     CacheInfo(hits=196, misses=100, capacity=100, current_size=100)
     """
 
-    # class variable to map the decorator functions to their respective instance
-    decorator_function_to_instance_map: dict[Callable[[T], U], LFUCache[T, U]] = {}
-
     def __init__(self, capacity: int):
         self.list: DoubleLinkedList[T, U] = DoubleLinkedList()
         self.capacity = capacity
@@ -291,18 +288,23 @@ def decorator(
         """
 
         def cache_decorator_inner(func: Callable[[T], U]) -> Callable[..., U]:
+            # variable to map the decorator functions to their respective instance
+            decorator_function_to_instance_map: dict[
+                Callable[[T], U], LFUCache[T, U]
+            ] = {}
+
             def cache_decorator_wrapper(*args: T) -> U:
-                if func not in cls.decorator_function_to_instance_map:
-                    cls.decorator_function_to_instance_map[func] = LFUCache(size)
+                if func not in decorator_function_to_instance_map:
+                    decorator_function_to_instance_map[func] = LFUCache(size)
 
-                result = cls.decorator_function_to_instance_map[func].get(args[0])
+                result = decorator_function_to_instance_map[func].get(args[0])
                 if result is None:
                     result = func(*args)
-                    cls.decorator_function_to_instance_map[func].put(args[0], result)
+                    decorator_function_to_instance_map[func].put(args[0], result)
                 return result
 
             def cache_info() -> LFUCache[T, U]:
-                return cls.decorator_function_to_instance_map[func]
+                return decorator_function_to_instance_map[func]
 
             setattr(cache_decorator_wrapper, "cache_info", cache_info)  # noqa: B010
 

other/lru_cache.py

@@ -209,9 +209,6 @@ class LRUCache(Generic[T, U]):
     CacheInfo(hits=194, misses=99, capacity=100, current size=99)
     """
 
-    # class variable to map the decorator functions to their respective instance
-    decorator_function_to_instance_map: dict[Callable[[T], U], LRUCache[T, U]] = {}
-
     def __init__(self, capacity: int):
         self.list: DoubleLinkedList[T, U] = DoubleLinkedList()
         self.capacity = capacity
@@ -308,18 +305,23 @@ def decorator(
         """
 
         def cache_decorator_inner(func: Callable[[T], U]) -> Callable[..., U]:
+            # variable to map the decorator functions to their respective instance
+            decorator_function_to_instance_map: dict[
+                Callable[[T], U], LRUCache[T, U]
+            ] = {}
+
             def cache_decorator_wrapper(*args: T) -> U:
-                if func not in cls.decorator_function_to_instance_map:
-                    cls.decorator_function_to_instance_map[func] = LRUCache(size)
+                if func not in decorator_function_to_instance_map:
+                    decorator_function_to_instance_map[func] = LRUCache(size)
 
-                result = cls.decorator_function_to_instance_map[func].get(args[0])
+                result = decorator_function_to_instance_map[func].get(args[0])
                 if result is None:
                     result = func(*args)
-                    cls.decorator_function_to_instance_map[func].put(args[0], result)
+                    decorator_function_to_instance_map[func].put(args[0], result)
                 return result
 
             def cache_info() -> LRUCache[T, U]:
-                return cls.decorator_function_to_instance_map[func]
+                return decorator_function_to_instance_map[func]
 
             setattr(cache_decorator_wrapper, "cache_info", cache_info)  # noqa: B010
 

pyproject.toml

@@ -135,9 +135,6 @@ lint.per-file-ignores."machine_learning/sequential_minimum_optimization.py" = [
 lint.per-file-ignores."matrix/sherman_morrison.py" = [
   "SIM103",
 ]
-lint.per-file-ignores."other/l*u_cache.py" = [
-  "RUF012",
-]
 lint.per-file-ignores."physics/newtons_second_law_of_motion.py" = [
   "BLE001",
 ]