Python Conditional Statements

Conditional Statements

In Python, conditional statements allow you to execute specific code based on whether a certain condition is true or false. The most common conditional statements in Python are if, if-else, if-elif-else, and the ternary operator. Here is an explanation of each of these:

if statement: This statement is used to execute a block of code only if a condition is true. The syntax for an if  statement is as follows:

Python Code:

x = 10

if x > 5:
print(“x is greater than 5”)

a = 10
if a == 10 :
    print("Hi")

if-else statement: This statement is used to execute one block of code if a condition is true, and another block of code if the state is false. The syntax for an if-else statement is as follows:

Python Code:

a = 10

if a == 11:
    print("Hi")
else:
    print("Bye")


if-elif-else statement: This statement is used to execute different blocks of code based 
on multiple conditions. The syntax for an if-elif-else statement is as follows:

Python Code:
a = 8

if a < 5:
    print(1)
elif a == 10:
    print(2)
elif a > 7:
    print(3)
else:
    print(4)

Python Code:

x = 3

if x > 5:
print(“x is greater than 5”)
elif x > 0:
print(“x is greater than 0 but less than or equal to 5”)
else:
print(“x is less than or equal to 0”)

Nested if else:

Python Code:

a = 5

if a == 5:
    print(1)
    if a > 3:
        print(2)
    else:
        print(3)
elif a == 7:
    print(4)
    if a > 5:
        print(5)
else:
    print("Finish")

Ternary operator: This is a shorthand way of writing an if-else statement. The syntax for a ternary operator is as follows:

Python Code:

a = 5

b = 10 if a > 2 else 45

print(b)

Python Code:

x = 3

print(“x is greater than 5” if x > 5 else “x is less than or equal to 5”)

if n%2 == 0:
    print("Even")
else:
    print("Odd")

n = int(input("Enter a number: "))

if n == 1:
    print("One")
elif n == 2:
    print("Two")
elif n == 0:
    print("Zero")
else:
    print("Invalid Input")

n = int(input("Enter a number: "))

if n < 0:
    print(n * (-1) )
else:
    print(n)

a = int(input("Enter length: "))
b = int(input("Enter width: "))

if a == b:
    print("Square")
else:
    print("Rectangle")