python programming. please write down the comments for each step. screenshot the program and attach please.

Problem 1. Given a NumPy array, write a function that takes in the array and a window size and calculates the moving average for the 1-D array. Set the default window size to 3. . . Use NumPy to as much extent as possible. The smaller the code, the better. The txt file contains space separated numbers( below), your task is to read those numbers as an array and use the above function to find the moving average. The window size is given on the next file. Your program should output the result array as space separated numbers in a file called result.tx Note: You do not have to submit the output file. Just make sure it gets generated correctiy. line in the Python code