Python Operators

Operators in Python are the symbols that perform specific function between operands. An operator is one of the most important features in any programming language as they allow an easy way of performing a basic operation like addition, subtraction, and many other operations. In Python there are seven different operators, let us explore them in this tutorial.

What are the Arithmetic Operators in Python?

Arithmetic operators perform mathematical operations like addition, subtraction, multiplication, division, exponent.

Example:

a = 10
b = 6
print("a + b =", a + b)
print("a - b =", a - b)
print("a * b =", a * b)
print("a / b =", a / b)
print("a % b =", a % b)
print("a ** b =", a ** b)
print("a // b =", a // b)

Output:

a = 10
b = 6
print("a > b =", a > b)
print("a < b =", a < b)
print("a == b =", a == b)
print("a != b =", a != b)
print("a >= b =", a >= b)
print("a <= b =", a <= b)

a = 10
b = 6
a += b
a -= b

print("Result after a += b =", a)
print("Result after a -= b =", a)

a = True
b = False
print('a and b is', a and b)
print('a or b is', a or b)
print('not a is', not a)

a = 9  # 1001
b = 5  # 0101

# output 1 i.e. binary 0001
print('a & b = ', a & b)

# output 13 i.e. binary 1011
print('a | b = ', a | b)

a = [1, 3, 5, 7]  # a is a list of numbers
print("5 in a", 5 in a)
print("4 in a", 4 in a)
print("10 in a", 10 not in a)

a1 = 5
b1 = 5
a2 = [1, 2, 3]
b2 = [1, 2, 3]
print(a1 is b1)
print(a2 is b2)

What is the Precedence of Operators in Python?

The order in which the operator is evaluated first plays important role in any programming language. Python has the following precedence of operators:-

Associativity of Python Operators

When two operators have the same precedence, the associativity helps to determine which is the order of operations. Almost all the operators have left-to-right associativity in Python. Exponent operator ** has right-to-left associativity in Python. Assignment operators and comparison operators do not have associativity in Python.