Logical Operators in Python: and, or, not

if condition1 and condition2:
    # runs only if BOTH are True
    pass

age = 17
has_license = True

if age >= 16 and has_license:
    print("You can ride a scooter!")
else:
    print("Not yet")
# Output: You can ride a scooter!

True  and True   → True    # only this case gives True
True  and False  → False
False and True   → False
False and False  → False

if condition1 or condition2:
    # runs if AT LEAST ONE is True
    pass

day = "Saturday"

if day == "Saturday" or day == "Sunday":
    print("Day off!")
else:
    print("Weekday")
# Output: Day off!

True  or True   → True
True  or False  → True     # any True → result is True
False or True   → True
False or False  → False    # only both False → result is False

if not condition:
    # runs if condition is False
    pass

is_raining = False

if not is_raining:
    print("Go for a walk!")
else:
    print("Stay home")
# Output: Go for a walk!

not True  → False
not False → True

x = True
y = False
z = True

result = not x and y or z
# Step 1: not x   → False
# Step 2: False and y → False
# Step 3: False or z  → True
print(result)  # True

result = ((not x) and y) or z  # Explicit and clear

age = int(input("Age: "))
height = int(input("Height (cm): "))

# Allowed if: (age >= 10 AND height >= 140) OR age >= 16
if (age >= 10 and height >= 140) or age >= 16:
    print("Come in!")
else:
    print("Sorry, not allowed")

password = input("Password: ")
length_ok = len(password) >= 8
has_digit = any(char.isdigit() for char in password)

if length_ok and has_digit:
    print("Strong password")
else:
    if not length_ok:
        print("Password too short (need >= 8 characters)")
    if not has_digit:
        print("Password must contain a digit")

month = int(input("Month (1-12): "))

if month == 12 or month == 1 or month == 2:
    season = "Winter"
elif month >= 3 and month <= 5:
    season = "Spring"
elif month >= 6 and month <= 8:
    season = "Summer"
elif month >= 9 and month <= 11:
    season = "Autumn"
else:
    season = "Invalid month"

print(season)

# ❌ WRONG — syntax error
if age >= 10 and >= 18:
    print("OK")

# ✅ CORRECT
if age >= 10 and age <= 18:
    print("OK")

# ✅ Even better — Python supports chained comparisons
if 10 <= age <= 18:
    print("OK")