Hi, Im really struggling with the replace function. MUST BE IN PYTHON!!! I've gone over my text book but haven't been able to find the solution. Can someone please help

*13.5 (Replace text) Write a program that replaces text in a file. Your program should prompt the user to enter a filename, an old string, and a new string. Here is a sample run: Enter a filename: test.txt Enter Enter the old string to be replaced: morning Enter the new string to replace the old string: afternoon nter Done