Continue working on your Lab $7,$ in this lab, we need to modify some methods $-$ Instead of having them return True$/$False$,$ modify each one to throw an exception if invalid data is passed. In other words, you just need to modify predefined methods to throw an exception when "False". Here are some sample code:

def set$\_$office$\_$number$($self$,$ x$)$:

if x $<100$ or x $>500$:

raise ValueError

else:

self.office$\_$number $=$ x

In terms of set$\_$name, replace$("\_","")$ can be used to remove specific characters