Python

Operators

Comparison Operators

• x == y
  • if x equals y, return True​
• x != y
  • if x is not y, return True​
• x > y
  • if x is greater than y, return True​
• x < y
  • if x is less than y, return True​
• x >= y
  • if x is greater or equal to y, return True​
• x <= y
  • if x is less or equal to y, return True

Example:

a=7
b=4

print('a > b is',a>b)

print('a < b is',a<b)

print('a == b is',a==b)

print('a != b is',a!=b)

print('a >= b is',a>=b)

print('a <= b is',a<=b)


#Output
a > b is True
a < b is False
a == b is False
a != b is True
a >= b is True
a <= b is False

Membership Operators

• in
  • Evaluates to True if it finds a variable in the checked sequence
• not in
  • Evaluates to True if it does not find a variable in the checked sequence

Identity Operators

• is
  • Evaluates to True if variables on either side of the operator point to the same object
• is not
  • Evaluates to True if the variables on either side of the operator does not point to the same object

Boolean Operators

• and
  • Evaluates True if expressions on both sides of the operator are True.
• or
  • Evaluates True if expressions on either side of the operator are True.

Examples:

# Example using bitwise operators
a=7
b=4

# Result: a and b is 4
print('a and b is',a and b)

# Result: a or b is 7
print('a or b is',a or b)

# Result: not a is False
print('not a is',not a)

#Output
a and b is 4
a or b is 7
not a is False



# Example using 'in' operator
list1=[1,2,3,4,5]
list2=[6,7,8,9]
for item in list1:
    if item in list2:
        print("overlapping")      
else:
    print("not overlapping")

# Output: not overlapping


# Example of 'is' identity operator
x = 5
if (type(x) is int):
    print ("true")
else:
    print ("false")

# Output: true

Assignment Operators