Python

3. [sales-totaler.py] Write a program that takes some sales numbers from a file written as dollars e.g., $1120.47), sums them across rows, and outputs the rows again with the sum at the end. For example for an input file named17-oct-sales.txt' with these contents. $1120.47 $944.42 $72.29 $588.23 $371.21 $2183.84 your program would output to another file the contents: 1120.47 $ 944.42 2064.89 $ 72.29 $ 588.23 660.52 $ 371.21 $ 2183.84 2555.05 Notice how in the output file all the numbers are nicely formatted with right alignment. Hint: you will probably need to use splitting, string slicing, converting data types, and string formatting. You program should prompt a user to input a file containing the sales numbers. Then prompt the user to enter a file name for outputting the sales numbers and their totals, formatted as indicated in the example above. Here is an example interaction Enter sales file name: 17-oct-sales.txt Enter name for total sales file: 17-oct-totals.txt Done writing totals to 17-oct-total.txt You will find the 17-oct-sales.txt file already included in the repository