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Задание_2.2._ВСР_Щербинин_А._В./mult_logger.py

+import threading
+from datetime import datetime
+import time
+
+class Logger:
+    _instance = None
+    _lock = threading.Lock()
+
+    def __new__(cls):
+        if cls._instance is None:
+            with cls._lock:
+                if cls._instance is None:
+                    time.sleep(0.01)
+                    cls._instance = super(Logger, cls).__new__(cls)
+                    cls._instance._initialize()
+        return cls._instance
+    
+    def _initialize(self):
+        self.log_file = open("test.log", "a")
+    
+    def log(self, message):
+        timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
+        self.log_file.write(f"[{timestamp}] {message}\n")
+
+def create_instance(thread_id):
+    logger = Logger()
+    logger.log(f"Message #{thread_id}")
+    
+
+if __name__ == "__main__":
+    threads = [threading.Thread(target=create_instance, args=(i,)) for i in range(10)]
+
+    for t in threads:
+        t.start()
+        
+    # time.sleep(3)
+
+    for t in threads:
+        t.join()
+
+    print("Готово. Все потоки записали лог.")