Implement function call counter and performance decorators

Added two decorators: fn_w_counter for counting function calls and performance for measuring execution time and memory usage.

Author: FatmaAlsaghir

Week04/decorators_fatma_alsaghir.py

@@ -0,0 +1,44 @@
+import time
+import tracemalloc
+from functools import wraps
+
+
+def fn_w_counter(func):
+    @wraps(func)
+    def wrapper(*args, **kwargs):
+        wrapper.counter += 1
+
+        caller = func.__globals__.get("__name__", "__main__")
+        wrapper.callers[caller] = wrapper.callers.get(caller, 0) + 1
+
+        result = func(*args, **kwargs)
+        return result
+
+    wrapper.counter = 0
+    wrapper.callers = {}
+    return wrapper
+
+
+def performance(func):
+    @wraps(func)
+    def wrapper(*args, **kwargs):
+        start_time = time.perf_counter()
+
+        tracemalloc.start()
+        result = func(*args, **kwargs)
+        current_mem, peak_mem = tracemalloc.get_traced_memory()
+        tracemalloc.stop()
+
+        elapsed_time = time.perf_counter() - start_time
+
+        wrapper.counter += 1
+        wrapper.total_time += elapsed_time
+        wrapper.total_mem += peak_mem
+
+        return result
+
+    wrapper.counter = 0
+    wrapper.total_time = 0.0
+    wrapper.total_mem = 0
+
+    return wrapper