decorator finished

decorators/wiki.txt

@@ -108,4 +108,24 @@
         hello('hii')
 
 
-    
+ 
+    for ex:
+        from time import time
+
+        def performance(fn):
+            def wrapper(*args, **kwargs):
+                t1 = time()
+                result = fn(*args, **kwargs)
+                t2 = time()
+                print(f'took {t2-t1} ms')
+                return result
+            return wrapper
+
+        @performance
+        def long_time():
+            for i in range(1000000):
+                i*5
+
+        long_time()
+
+