Operators in Python [Part-2]

Comparison operators: The following table shows the comparison operators used in Python to compare two values. Assume two variable x and y, then:
Operator Name Description Example
> Greater than True if left operand is greater than the right x > y
< Less than True if left operand is less than the right x < y
== Equal to True if both operands are equal x == y
!= Not Equal to True if operands are not equal x != y
>= Greater than or equal to True if left operand is greater than or equal to the right x >= y
<= Less than or equal to True if left operand is less than or equal to the right x <= y

Example -
a=5
b=2
print(a>b) # returns True because 5 is greater than 2
print(a<b) # returns False because 5 is not less than 2
print(a==b) # returns False because 5 is not equal to 2
print(a!=b) # returns True because 5 is not equal to 2
print(a>=b) # returns True because 5 is grater than, or equal to 2
print(a<=b) # returns False because 5 is not less than, or equal to 2

Output will be
True
False
False
True
True
False


Logical operators: The following table shows the logical operators used in Python to combine conditional statements. Assume x is a variable, then:
Operator Description Example
and True if both statements are true x > 5 and x < 8
or True if one of the statements is true x > 10 or x > 20
not Reverse the result not(x > 5 and x < 8)

Example -
x=5
print(x>2 and x>1) # returns True because both conditions are true
print(x>4 or x<1) # returns True because one of the condition is true (x>4)
print(not(x>2 and x>1)) # returns False because not is used to reverse the result

Output will be
True
True
False


Identity operators: Identity operators are used in Python to check if two variables (or objects) are identical or not. If identical, they are located on the same memory location. Assume two variable x and y, then:
Operator Description Example
is True if both variables (or objects) are identical x is y
is not True if the variables (or objects) are not identical x is not y

Example -
a=1
b=1
c="Neoogy"
print(a is b) # returns True because both variables are integers i.e identical and occupies same memory location
print(a is not c) # returns True because both variables are not identical and located in different memory location

Output will be
True
True


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