Boolean expression Python

Python Boolean expression is an expression that evaluates to produce a result which is a Boolean value. An if statement uses the equal operator == to test if two values are equal and produce (or yield) a Boolean value.

The Boolean values in Python are True and False, typically used to control if-statements and while-loops.

Boolean expression Python example

Simple example code that returns a True or False value.

# Is three greater than two?
print(1 > 2)

# Is the number of characters in the string "Hello" equal to one?
print(len("Hello") == 1)

# Is 5 equal to 3 + 2?
print(5 == 3 + 2)

# Is four greater than or equal to nine?
print(2 + 2 >= 10)

# Is seven not equal to twelve?
print(5 != 10)

Output:

Boolean expression in the if else statement

my_number = 24
if my_number % 2 == 0: 
    print(my_number, "is even.")
else:
    print(my_number, "is odd.")

Python Comparison Operators

Mostly Boolean expressions are expressions that use comparison operators.

Operator	Meaning
x == y	x equals y
x != y	x does not equal y, x is not equal to y
x >= y	x is greater than or equal to y
x <= y	x is less than or equal to y

A Truth Table for Python Boolean Expressions

Expression 1	Connector	Expression 2	Result
True	and	True	True
False	and	True	False *
True	and	False	False
False	and	False	False *
True	or	True	True *
False	or	True	True
True	or	False	True *
False	or	False	False

Do comment if you have any doubts or suggestions on this Python basic topic.

Note: IDE: PyCharm 2021.3.3 (Community Edition)
Windows 10
Python 3.10.1
All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.

Boolean expression Python