Learn Python

1 Meet True & False! 👋

💡Learn: Booleans are special values - only True or False!

✅ True

❌ False

# Boolean values
is_sunny = True
is_raining = False

print("Is it sunny?", is_sunny)
print("Is it raining?", is_raining)

print("---")

# Real-world example
has_ticket = True
is_over_18 = False

print("Can enter concert?", has_ticket)
print("Can vote?", is_over_18)

🔑Important: True and False must start with capital letters!

2 Comparison Operators 🔍

⚖️Learn: Compare values to get True or False!

==

Equal to

!=

Not equal

>

Greater than

<

Less than

>=

Greater or equal

<=

Less or equal

# Comparing numbers
age = 16

print("Is 16 equal to 18?", age == 18)
print("Is 16 less than 18?", age < 18)
print("Is 16 >= 16?", age >= 16)

print("---")

# Comparing strings
name = "Alice"
print("Is name Alice?", name == "Alice")
print("Is name Bob?", name == "Bob")

⚠️Watch out: = assigns, == compares!

3 The AND Operator 🤝

🔗Learn: and = BOTH must be True!

A	B	A and B
✅ True	✅ True	✅ True
✅ True	❌ False	❌ False
❌ False	✅ True	❌ False
❌ False	❌ False	❌ False

# Movie ticket checker
age = 20
has_money = True

can_watch = age >= 18 and has_money
print("Can watch R-rated?", can_watch)

print("---")

# Multiple conditions
age = 15
has_parent = True
has_ticket = True

can_enter = age >= 13 and has_parent and has_ticket
print("Can enter?", can_enter)

💡Think: Need BOTH key AND password!

4 The OR Operator 🎭

🌟Learn: or = At least ONE must be True!

A	B	A or B
✅ True	✅ True	✅ True
✅ True	❌ False	✅ True
❌ False	✅ True	✅ True
❌ False	❌ False	❌ False

# Discount checker
is_student = True
is_senior = False

gets_discount = is_student or is_senior
print("Gets discount?", gets_discount)

print("---")

# Day off
is_weekend = False
is_holiday = True

day_off = is_weekend or is_holiday
print("Day off?", day_off)

💡Think: Pay with cash OR card!

5 The NOT Operator 🔄

🔃Learn: not flips True ↔ False!

# NOT flips values
is_raining = False
is_sunny = not is_raining

print("Raining?", is_raining)
print("Sunny?", is_sunny)

print("---")

# Real example
has_homework = True
is_free = not has_homework

print("Homework?", has_homework)
print("Free?", is_free)

print("---")

age = 15
is_adult = age >= 18
is_child = not is_adult

print("Adult?", is_adult)
print("Child?", is_child)

🎯Tip: not True = False, not False = True!

6 Complex Conditions 🧩

🎨Challenge: Combine and, or, not!

# Store system
age = 25
has_id = True
total = 75

# Buy alcohol
can_buy = age >= 18 and has_id
print("Can buy alcohol?", can_buy)

# Free shipping
is_member = False
free_ship = total > 50 or is_member
print("Free shipping?", free_ship)

print("---")

# Theme park
height = 140
age = 12
with_adult = True

can_ride = height >= 130 or (age >= 10 and with_adult)
print("Can ride?", can_ride)

🚀Pro tip: Use ( ) for clarity!

7 Age Checker! 🎯

🎮Final Project: Age verification system!

age = input("Your age: ")
age = int(age)

parent = input("Parent with you? (yes/no): ")
has_parent = parent == "yes"

print("=== VERIFICATION ===")
print("Age:", age)
print("Parent:", has_parent)
print("---")

can_vote = age >= 18
can_drive = age >= 16
can_pg13 = age >= 13 or has_parent

print("Vote?", can_vote)
print("Drive?", can_drive)
print("Watch PG-13?", can_pg13)

print("---")
if age >= 18:
    print("🎉 Adult!")
elif age >= 13:
    print("😊 Teenager!")
else:
    print("👶 Kid!")

🎯Try: 10/yes, 15/no, 20/no

✅❌ Python Booleans & Operators - Day 6

1 Meet True & False! 👋

2 Comparison Operators 🔍

3 The AND Operator 🤝

4 The OR Operator 🎭

5 The NOT Operator 🔄

6 Complex Conditions 🧩

7 Age Checker! 🎯

🎉 Boolean Logic Expert! 🎉