When a Python program is reading a file, the data is input as plain ASCII characters in a string. What is the following code doing assuming a file is opened with file object inputFile? r_in = inputFile.readline() t = 0 while r_in != '': r = r_in.rstrip('\n') r_list = r.split('|') n = float(r_list[2]) t += n r_in = inputFile.readline()