📦 Python Tuples & Lists - Day 10

Learn two powerful ways to store collections! 🎯

Step 1 of 8

1 Lists Review 📝

💡 Remember: Lists use [ ] and can be changed!

# Lists are MUTABLE (changeable)
colors = ["red", "blue", "green"]
print("Start:", colors)
colors[0] = "yellow"
print("Changed:", colors)
colors.append("purple")
print("Added:", colors)
colors.remove("blue")
print("Removed:", colors)

🔑 Key: Lists can be modified!

2 Meet Tuples! 🔒

✨ New: Tuples use ( ) and CANNOT be changed!

# Tuples are IMMUTABLE
coordinates = (10, 20)
print("Point:", coordinates)
print("X:", coordinates[0])
print("Y:", coordinates[1])

rgb = (255, 128, 0)
print("RGB:", rgb)

person = ("Alice", 25, "Engineer")
print("Name:", person[0])
print("Age:", person[1])
print("Job:", person[2])

🔒 Key: Tuples cannot be changed!

3 Lists vs Tuples ⚖️

🎯 Compare: See the difference!

📝 Lists [ ]

✅ Can change

✅ Add/remove

✅ Dynamic data

🔒 Tuples ( )

✅ Cannot change

✅ Faster & safer

✅ Fixed data

shopping = ["milk", "eggs"]
shopping.append("bread")
print("Shopping:", shopping)

birthday = (12, 25, 2010)
print("Birthday:", birthday)

months = [1, 2, 3]
months[0] = 12
print("Months:", months)

💡 Lists: changing data. Tuples: fixed data.

4 Tuple Magic! ✨

🎁 Cool: Packing and unpacking!

point = (5, 10)
print("Point:", point)

x, y = point
print("X =", x)
print("Y =", y)

name, age, city = ("Bob", 15, "NYC")
print("Name:", name)
print("Age:", age)
print("City:", city)

a = 100
b = 200
print("Before - a:", a, "b:", b)
a, b = b, a
print("After - a:", a, "b:", b)

🎯 Unpacking makes swapping easy!

5 Using Both 🤝

🎨 Practice: Lists and tuples together!

students = [
    ("Alice", 95),
    ("Bob", 87),
    ("Charlie", 92)
]

print("=== GRADES ===")
for student in students:
    name, grade = student
    print(f"{name}: {grade}%")

print("\n=== LOCATIONS ===")
locations = [
    ("Home", (10, 20)),
    ("School", (30, 40)),
    ("Park", (15, 25))
]

for place, coords in locations:
    x, y = coords
    print(f"{place} at ({x}, {y})")

💡 List of tuples is powerful!

6 Quiz! 🎯

🤔 Test: Which to use?

Scenario: RGB color (255, 128, 0) that never changes. What to use?

A) List - [255, 128, 0]

B) Tuple - (255, 128, 0)

7 Common Operations 🛠️

💪 Practice: Works on both!

my_list = [1, 2, 3, 4, 5]
my_tuple = (1, 2, 3, 4, 5)

print("List length:", len(my_list))
print("Tuple length:", len(my_tuple))

print("List[0]:", my_list[0])
print("Tuple[0]:", my_tuple[0])

print("List slice:", my_list[1:4])
print("Tuple slice:", my_tuple[1:4])

numbers_list = [1, 2, 2, 3, 2]
numbers_tuple = (1, 2, 2, 3, 2)
print("2 in list:", numbers_list.count(2))
print("2 in tuple:", numbers_tuple.count(2))

print("5 in list?", 5 in my_list)
print("10 in tuple?", 10 in my_tuple)

✨ Access/slice works on both!

8 Game Inventory 🎮

🚀 Project: Inventory system!

print("=== GAME INVENTORY ===\n")

sword = ("Steel Sword", 50, 100)
shield = ("Iron Shield", 0, 75)
potion = ("Health Potion", 0, 25)

inventory = []
inventory.append(sword)
inventory.append(shield)
inventory.append(potion)

print("📦 Inventory:")
total_cost = 0
for item in inventory:
    name, damage, cost = item
    total_cost = total_cost + cost
    
    if damage > 0:
        print(f"  ⚔️  {name} - Dmg: {damage} - Cost: {cost}g")
    else:
        print(f"  🛡️  {name} - Cost: {cost}g")

print(f"\n💰 Total: {total_cost} gold")

print("\n🗑️  Removing", potion[0])
inventory.remove(potion)

print("\n📦 Final:")
for item in inventory:
    print(f"  • {item[0]}")

💡 Tuples for stats, list for inventory!

📦 Python Tuples & Lists - Day 10

1 Lists Review 📝

2 Meet Tuples! 🔒

3 Lists vs Tuples ⚖️

📝 Lists [ ]

🔒 Tuples ( )

4 Tuple Magic! ✨

5 Using Both 🤝

6 Quiz! 🎯

7 Common Operations 🛠️

8 Game Inventory 🎮

🎉 Tuples & Lists Master! 🎉