Python help needed

Write a program that calculates the amount of pay a person would earn over a period of time if his or her salary is one penny the first day, two pennies the second day, and continues to double each day. The program should ask the user for the number of days to tabulate. The number of days must be between 1 and 100. While the number of days is not between 1 and 100, display an error message and ask the user again to enter a valid number of days.Display the total pay at the end of the period. Display the total with commas