Implement performance decorator for function metrics

Week04/decorators_alp_ozdemir.py

@@ -0,0 +1,32 @@
+import functools
+import time
+import tracemalloc
+
+def performance(func):
+    @functools.wraps(func)
+    def wrapper(*args, **kwargs):
+
+        tracemalloc.start()
+        start_time = time.perf_counter()
+
+        try:
+
+            result = func(*args, **kwargs)
+        finally:
+
+            current, peak = tracemalloc.get_traced_memory()
+            tracemalloc.stop()
+            end_time = time.perf_counter()
+
+
+            performance.counter += 1
+            performance.total_time += (end_time - start_time)
+            performance.total_mem += peak
+
+        return result
+    return wrapper
+
+
+performance.counter = 0
+performance.total_time = 0
+performance.total_mem = 0