bendog · September 10, 2018 05:03 · Sep 10, 2018
diff --git a/timed_cache_helper.py b/timed_cache_helper.py
@@ -0,0 +1,23 @@
+import functools
+import datetime
+
+
+def timed_cache(maxsize=128, typed=False, **timedelta_kwargs):
+    def _wrapper(f):
+        update_delta = datetime.timedelta(**timedelta_kwargs)
+        next_update = datetime.datetime.utcnow() - update_delta
+        # Apply @lru_cache to f with no cache size limit
+        f = functools.lru_cache(maxsize=maxsize, typed=typed)(f)
+
+        @functools.wraps(f)
+        def _wrapped(*args, **kwargs):
+            nonlocal next_update
+            now = datetime.datetime.utcnow()
+            if now >= next_update:
+                f.cache_clear()
+                next_update = now + update_delta
+            return f(*args, **kwargs)
+
+        return _wrapped
+
+    return _wrapper
No results found