Hello, I have been stuck on how to write this Python program can anyone solve it?

Write a program that prompts for an integer and prints the integer, but if something other than an integer is input, the program keeps asking for an integer. Here is a sample session:

Input an integer: abc

Error: try again.

Input an integer: 4a

Error: try again.

Input an integer: 2.5

Error: try again.

Input an integer: 123

The integer is: 123

Hint: the string isdigit method will be useful to solve this problem, but you are not allowed to use it in this program

Thanks, Kameron