Web Reference: Start with your program from Exercise 9-1 (page 166). Add an attribute called number_served with a default value of 0. Create an instance called restaurant from this class. Print the number of customers the restaurant has served, and then change this value and print it again. All terms from Chapter 9: GUI Programming Using Tkinter in Introduction to Programming Using Python by Y. Daniel Liang Chapter 9 9.1 Modifying and iterating lists 1. b. The append() operation adds an element to the end of a list.
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