At the beginning of the group assignment, I found difficulties on how to use an XML file as the input data of my program. It is the first time I use XML files in my program and I am not used to it. Therefore, I spent few hours to understand how XML file works in Python programming. During the coding, I realize that some of the functions inside our program are useless, which cause us using some time for checking our coding and rewriting part of the program. After finishing this assignment, I found that I am still not familiar with Python programming, seems I have to pay more efforts on learning Python and other programming languages.