Steps followed:
1. take input from user and store in num variable
2. validate user input by converting to integer
3. check if number is exactly divisible by 2
4. print result

Program

#python program for odd-even check

#getting input from user and storing in num variables

num=input("enter a number: ")

#validating user input

try:

    num=int(num)

    print("you have entered valid number")    

    #divide number with 2 to check if the remainder is 0

    if num % 2 == 0:

        print("%d is an even number"%(num))

    else:

        print("%d is an odd number"%(num))

        

except:

    print("you have entered invalid number")

Output

enter a number: 80

you have entered valid number

80 is an even number

enter a number: 67

you have entered valid number

67 is an odd number

enter a number: star

you have entered invalid number

► Python program for odd-even check