Understand broadcast.py$,$ a program that illustrates the concept of broadcasting.

Create a Person class that contains two fields: a first name and a last name. Then create a numpy array that contains $5$ Person$($s$).$ Finally, use the built$-$in sorted function to alphabetize the array using the last name as the primary key and the first name as the secondary key.

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# CSCI $127$: Joy and Beauty of Data

# NumPy Computer Graphics "broadcast" example

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import turtle

import numpy as np

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def draw$\_$house$($stylus$,$ coordinates, pen$\_$color$)$:

stylus.color$($pen$\_$color$)$

stylus.up$()$

stylus.goto$($coordinates$[0][0],$ coordinates$[0][1])$

stylus.down$()$

for coordinate in coordinates:

stylus.goto$($coordinate$[0],$ coordinate$[1])$

# $--------------------------------------$

def draw$\_$neighborhood$($drawing$\_$turtle$)$:

drawing$\_$turtle.hideturtle$()$

coordinates $=$ np$.$array$([[-30,50],[-30,-50],[70,-50],[70,50],$

$[-30,50],[20,100],[70,50]])$

draw$\_$house$($drawing$\_$turtle, coordinates, "black"$)$

draw$\_$house$($drawing$\_$turtle, coordinates $+10,$ "black"$)$

draw$\_$house$($drawing$\_$turtle, coordinates $+[-100,-200],$ "red"$)$

draw$\_$house$($drawing$\_$turtle, coordinates $*2,$ "turquoise"$)$

draw$\_$house$($drawing$\_$turtle, coordinates $*[\mathrm{.}5,\mathrm{.}2]+[100,200],$ "blue"$)$

# $--------------------------------------$

def main$()$:

window $=$ turtle.Screen$()$

house$\_$turtle $=$ turtle.Turtle$()$

draw$\_$neighborhood$($house$\_$turtle$)$

window.exitonclick$()$

# $--------------------------------------$

main$()$