Python Boolean

In Python, a Boolean value represents a True or False value.

Use a Boolean value: Boolean values are used in conditional statements or comparisons to control the flow of a program.

In Python, the Boolean data type is called bool, with the values True and False.

Note:- True behaves exactly like the integer 1, and False behaves exactly like the integer 0

There are only two Boolean values:

Booleans can be created in several ways:

1. Direct Assignment: You can directly assign a Boolean value.


is_user_active = True
is_completed = False

2. Using Comparison Operators:

Example:


a = 25
b = 30
print(a == 5)  # True
print(a > b)  # False

3. Using Logical Operators:

and: If both conditions are true, then returns True.

or: If at least one condition is true, then return True.

not: Reverses the Boolean value.

Example:


x = True
y = False

print(x and y)  # False
print(x or y)   # True
print(not x)    # False

What are Truthy and Falsy Values

In Python, many values can be implicitly converted to True or False in a Boolean context:

False values:

If the values are None, 0, 0.0, ‘ ‘ (empty string), [] (empty list), () (empty tuple), {} (empty dictionary).

True values:

If the values are not considered false, like non-zero numbers, non-empty strings, and collections.

Example:


if []:
    print("This won't be printed because an empty list is Falsy.")
else:
    print("This will be printed.")

Python Boolean – Interview Questions

Ans: A Boolean represents one of two values: True or False.

Ans: Python supports True and False as Boolean values.

Ans: The bool() function is used to evaluate Boolean values.

Ans: Yes, values like numbers and strings can be evaluated as True or False.

Ans: Yes, True and False must be written with uppercase first letters.