Using python Problem 9 (25 points). Given a binary number convert the number to its decimal equivalent. If the number inputted by the use contains any digits apart from 0 or 1 output and error message.

Sample program output 1:

Please enter the binary number: 10010

The decimal equivalent of 10010 is 18

Sample program output 2:

Please enter the binary number: 111

The decimal equivalent of 111 is 7

Sample program output 3:

Please enter the binary number: 2019

The decimal equivalent of 2019 is not a binary number