2

2.py

@@ -0,0 +1,36 @@
+import tkinter as tk
+from tkinter import messagebox
+from datetime import datetime
+
+class Room:
+    def __init__(self, room_number, room_type, rate, availability=True):
+        self.room_number = room_number
+        self.room_type = room_type
+        self.rate = rate
+        self.availability = availability
+
+class Reservation:
+    def __init__(self, room, start_date, end_date):
+        self.room = room
+        self.start_date = start_date
+        self.end_date = end_date
+        self.total_cost = self.calculate_total_cost()
+
+    def calculate_total_cost(self):
+        days = (self.end_date - self.start_date).days + 1
+        return days * self.room.rate
+
+class Hotel:
+    def __init__(self, name):
+        self.name = name
+        self.rooms = []
+        self.reservations = []
+
+    def add_room(self, room):
+        self.rooms.append(room)
+
+    def check_availability(self, start_date, end_date):
+        available_rooms = [r for r in self.rooms if r.availability and
+                          not any((start_date <= res.start_date <= end_date or start_date <= res.end_date <= end_date)
+                                  for res in self.reservations if res.room == r)]
+        return available_rooms