Solved

lab-python-error-handling.ipynb

@@ -72,6 +72,126 @@
     "\n",
     "4. Test your code by running the program and deliberately entering invalid quantities and product names. Make sure the error handling mechanism works as expected.\n"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "13f2e510-bab7-4ea3-bf6f-ddbbb9126af5",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# 2. Modify the calculate_total_price function to include error handling."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "55a0a240-fe78-43ec-9b47-9d7f15110e75",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def calculate_total_price(products):\n",
+    "    total_price = 0\n",
+    "\n",
+    "    for product in products:\n",
+    "        valid_price = False\n",
+    "        while not valid_price:\n",
+    "            try:\n",
+    "                price = float(input(f\"Enter the price of {product}: \"))\n",
+    "                if price < 0:\n",
+    "                    raise ValueError(\"Price cannot be negative.\")\n",
+    "                total_price += price\n",
+    "                valid_price = True\n",
+    "            except ValueError as error:\n",
+    "                print(f\"Error: {error}. Please enter a valid price.\")\n",
+    "\n",
+    "    return total_price"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "ce3addee-b910-4404-a3d2-b71de698cdc5",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# 3. Modify the get_customer_orders function to include error handling."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "09613aa1-3ec4-4a58-9f89-d1d92a8ee543",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def get_customer_orders(inventory):\n",
+    "    orders = []\n",
+    "\n",
+    "    # Nhập số lượng đơn hàng\n",
+    "    valid_number = False\n",
+    "    while not valid_number:\n",
+    "        try:\n",
+    "            num_orders = int(input(\"How many products do you want to order? \"))\n",
+    "            if num_orders <= 0:\n",
+    "                raise ValueError(\"Number of orders must be positive.\")\n",
+    "            valid_number = True\n",
+    "        except ValueError as error:\n",
+    "            print(f\"Error: {error}\")\n",
+    "\n",
+    "    # Nhập từng sản phẩm\n",
+    "    for i in range(num_orders):\n",
+    "        valid_product = False\n",
+    "        while not valid_product:\n",
+    "            try:\n",
+    "                product = input(f\"Enter product name #{i+1}: \")\n",
+    "\n",
+    "                if product not in inventory:\n",
+    "                    raise KeyError(\"Product does not exist.\")\n",
+    "\n",
+    "                if inventory[product] <= 0:\n",
+    "                    raise ValueError(\"Product is out of stock.\")\n",
+    "\n",
+    "                orders.append(product)\n",
+    "                inventory[product] -= 1\n",
+    "                valid_product = True\n",
+    "\n",
+    "            except KeyError as error:\n",
+    "                print(f\"Error: {error} Please enter a valid product name.\")\n",
+    "            except ValueError as error:\n",
+    "                print(f\"Error: {error}\")\n",
+    "\n",
+    "    return orders"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "bf27bd50-be57-4369-93bb-60731677d8f6",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# 4. Test your code by running the program and deliberately entering invalid quantities and product names. Make sure the error handling mechanism works as expected."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "1928f35a-0897-44da-b496-8f4ab979fcd0",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "products = [\"apple\", \"banana\", \"orange\"]\n",
+    "\n",
+    "inventory = initialize_inventory(products)\n",
+    "print(\"Inventory:\", inventory)\n",
+    "\n",
+    "orders = get_customer_orders(inventory)\n",
+    "print(\"Customer orders:\", orders)\n",
+    "\n",
+    "total = calculate_total_price(orders)\n",
+    "print(\"Total price:\", total)"
+   ]
   }
  ],
  "metadata": {
@@ -90,7 +210,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.13.9"
   }
  },
  "nbformat": 4,