Python Booleans

Relax. We'll talk through this in plain words — no textbook voice.

🐍 Lesson 10: Python Booleans (True / False)

1. What is a Boolean?

In short → A Boolean is a data type with only two possible values: True and False.

More formally → A Boolean is a data type that can only have two values: True or False.

2. Logical Operators

and → True only when both are True
or → True if either one is True
not → flips the value

3. Summary

✅ Boolean = True / False

✅ Commonly used in comparison and logical operators

✅ Empty values → False, Non-empty values → True

✅ Plays a key role in control flow (if...else)

python

# ===== 1. Boolean Values =====
x = True
y = False

print(f"x = {x}, Type: {type(x)}")
print(f"y = {y}, Type: {type(y)}")

# ===== 2. Comparison Operations =====
print(f"\n===== Comparison =====")
print(f"10 > 5 = {10 > 5}")      # True
print(f"10 == 5 = {10 == 5}")    # False
print(f"10 < 5 = {10 < 5}")      # False

# ===== 3. Logical Operators =====
print(f"\n===== Logical Operators =====")
a = True
b = False

print(f"a and b = {a and b}")    # False
print(f"a or b = {a or b}")      # True
print(f"not a = {not a}")        # False

# ===== 4. Boolean Values of Objects =====
print(f"\n===== Boolean of Objects =====")
print(f"bool(0) = {bool(0)}")           # False
print(f"bool(1) = {bool(1)}")           # True
print(f"bool('') = {bool('')}")         # False
print(f"bool('Sai') = {bool('Sai')}")   # True
print(f"bool([]) = {bool([])}")         # False
print(f"bool([1,2,3]) = {bool([1,2,3])}")  # True

You should see

x = True, Type: y = False, Type: ===== Comparison ===== 10 > 5 = True 10 == 5 = False 10 < 5 = False ===== Logical Operators ===== a and b = False a or b = True not a = False ===== Boolean of Objects ===== bool(0) = False bool(1) = True bool('') = False bool('Sai') = True bool([]) = False bool([1,2,3]) = True