Speed typing test using Tkinter
This is my first post in repl.it, I hope this is a relatively good program, in your perspective. Anyways, this is a speed typing test using Tkinter. Your data(WPM) is stored in the json file named database, it is linked with your username. Thus, it is important that you remember your previous username in order to continue your progress, and since this program does not ask for a password, when you input your previous username into the username bar, it will ask you if used this username previously(you can click either 'Yes' or 'No' to the popup). However, it does have a problem due to this, because there exist a probability that someone might type the same username as yours accidentally or intentionally, and click 'Yes' to the popup.