Page 383 - Beginning Programming with Pyth - John Paul Mueller

application lists the records after each change so that you can see the status of NewData. This is actually a useful troubleshooting technique for your own applications. Of course, you want to remove the display code before you release the application to production.
3. Open the ChangedFile.csv file using an appropriate application.
You see output similar to that shown in Figure 16-6. This output is shown using WordPad, but the data won't change when you use other applications. So, even if your screen doesn’t quite match Figure 16-6, you should still see the same data.
FIGURE 16-5: The application shows each of the modifications in turn.