Operators Cheatsheet

Complete Python operators cheatsheet with clear examples for quick revision

Arithmetic Operators

1. Addition operators ( + ) -----> Used to perform addition

a=10
b=20
c=a+b # 10+20=30
print(c)

2. Subtraction Operators ( - ) -----> Used to perform subtraction

x=25
y=15
z=x-y # 25-15=10
print(z)

3. Multiplication Operators ( * ) -----> Used to perform multiplication

a=5
b=20
c=a*b # 5*20=100
print(c)

# Note: * works differently for sequences like string, list, etc. , which will be discussed later.

4. Division Operators ( / ) -----> Always gives output in float data type

x=30
y=10
z=x/y # 30/10=3.0
print(z)

5. Floor Division ( // ) -----> Always gives output in Integer data type

a=15
b=4
c=a//b # 15//4=3
print(c)

6. Exponent (Raise to the power operator) ( ** ) -----> Left side value must be Base whereas Right side value must be Power

x=2
y=3
z=x**y # 2**3=8 --> 2 is base whereas 3 is its power
print(z)

7. Modulus Operator ( % ) -----> It returns the Remainder after the division of two operands. It always gives output in Integer data type

a=23
b=3
c=a%b # 23%3=2
print(c)

Assignment Operators

1. Assignment Operator ( = ) -----> It assigns the value of the right expression to the Left operand

a=30
print(a)

2. Addition Assignment Operators ( += )

x=25
x+=5 # it works like: x=x+5 => x=25+5=30
print(x)
# Note: Just like += is working , similarly -= , *= , /= , //= ,**= also works

3. Subtraction Assignment Operators ( -= )

a=45
a-=15 #30
print(a)

4. Multiplication Assignment operators ( *= )

x=6
x*=7 #42
print(x)

5. Division Assignment operators ( /= )

a=45
a/=9# 5.0
print(a)

6. Floor Division operators ( /= )

x=35
x//=5 # 7
print(x)

7. Exponentiation Assignment Operators ( **= )

a=4
a**=3 # 64
print(a)

Comparison Operators

Used to compare values and return True or False

1. Greater Than ( > ) ------> Returns True if Left value if greater than Right value

x=5
print(x>2)  # True
print(x>10) #False

True
False

2. Greater than or Equals to ( >= ) -----> Returns True if the Left value is greater than or Equal to the Right value

x=5
print(x>=10) # False
print(x>=5)  # True
print(x>=4) # True

False
True
True

3. Smaller than ( < ) -----> Returns True if Left value is Less than Right value

x=5
print(x<10) # True
print(x<5)  # False

True
False

4. Smaller than Equals to ( <= ) -----> Returns True if the Left value is Less than or Equal to the Right value

x=5
print(x<=10) # True
print(x<=5)  # True
print(x<=2)  #False

True
True
False

5. Equals to ( == ) -----> Returns True if two values are equal

x=5
print(x==5) #True
print(x==10) #False
print(x==-5) #False

True
False
False

6. Not Equals to ( != ) -----> Returns True if Two values are not equals

x=5
print(x!=5)  #False
print(x!=10) #True

False
True

Logical Operators

1. and operator

2. or operator

3. not operator

1. and Operator -----> Returns True if both conditions are True

# a)
a = 10
b = 5
c = 15
print(a > b and b < c)  # True, because both conditions are True
print(a > c and b < a) # False, first condition is False

# b)
x = True
y = False
print(x and y)  # False

True
False
False

2. or Operator -----> Returns True if at least one condition is True

# a)
a = 10
b = 5
c = 15
print(a > b or b > c)  # True, because first condition is True
print(a < b or b > c)  # False, both conditions are False

# b)
x = True
y = False
print(x or y)

# Used to combine multiple conditions and return True or False (and, or)

True
False
True

3. not Operator -----> It returns True if the condition is False, and returns False if the condition is True

x=True
print(not x) #False
print(x) # True


# It only works with boolean expressions or values that can be interpreted as True or False.

True
False

Priority Table of Operators:

operator
( ) Parentheses
∗∗ Exponent
+,- Addition , Subtraction
==, !=, >, >=, <, <= Comparison Operator
Logical NOT
Logical AND
Logical OR

NOTE:

If there are operators with same priority,then they will be evaluated from left to right.