lab-python-flow-control

lab-python-flow-control.ipynb

@@ -41,7 +41,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": ".venv (3.15.0)",
    "language": "python",
    "name": "python3"
   },
@@ -55,7 +55,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.15.0"
   }
  },
  "nbformat": 4,

lab-python-flow-control.py

@@ -0,0 +1,65 @@
+# 1. Define products and initialize inventory using a loop
+products = ["t-shirt", "mug", "hat", "book", "keychain"]
+inventory = {}
+
+print("=== INVENTORY SETUP ===")
+for product in products:
+    while True:
+        user_input = input(f"Enter the quantity for '{product}': ").strip()
+        if user_input.isdigit():
+            inventory[product] = int(user_input)
+            break
+        else:
+            print(f"  ⚠ Invalid input. Please enter a whole number (e.g. 5).")
+
+print("\n--- Initial Inventory ---")
+for product, qty in inventory.items():
+    print(f"  {product}: {qty}")
+
+
+# 2. Take customer orders using a while loop
+customer_orders = set()
+add_another = "yes"
+
+print("\n=== PLACE YOUR ORDER ===")
+print(f"Available products: {products}")
+
+while add_another == "yes":
+    product_name = input("Enter a product name: ").strip().lower()
+
+    if product_name in products:
+        customer_orders.add(product_name)
+        print(f"  '{product_name}' added to your order.")
+    else:
+        print(f"  '{product_name}' is not available. Choose from: {products}")
+
+    while True:
+        add_another = input("Add another product? (yes/no): ").strip().lower()
+        if add_another in ("yes", "no"):
+            break
+        else:
+            print("  ⚠ Please type 'yes' or 'no'.")
+
+print(f"\nCustomer Orders: {customer_orders}")
+
+
+# 3. Calculate and print order statistics
+total_products_ordered = len(customer_orders)
+percentage_ordered = (total_products_ordered / len(products)) * 100
+order_status = (total_products_ordered, percentage_ordered)
+
+print("\n=== ORDER STATISTICS ===")
+print(f"  Total Products Ordered: {order_status[0]}")
+print(f"  Percentage of Products Ordered: {order_status[1]:.1f}%")
+
+
+# 4. Update inventory only for ordered products
+for product in customer_orders:
+    if inventory[product] > 0:
+        inventory[product] -= 1
+    else:
+        print(f"  Warning: '{product}' is out of stock!")
+
+print("\n=== UPDATED INVENTORY ===")
+for product, qty in inventory.items():
+    print(f"  {product}: {qty}")