Learning Outcome

At the end of this lesson, you will be able to:

• understand and use an Enumerated Type

Review

• arrays

Lesson

• go over Representing and Sorting Data, Chapter 6
  • Computer Based Problem Solving
  • "Enumerated Types"

Activity

• go over Enum example:
  • you need to use an import statement to enable Enums in Python 2.7
    • you will also need to add the enum.py file
    • in Python 3.4, it is included
  • note the declaration for the Enum goes in the Global Declaration section
  • it acts just like a constant

# Created by: Mr. Atkinson

# Created on: Apr 16, 2019

# Created for: ICS3U

# This program is an example of enumerated types

from enum import Enum

class Planets(Enum):

    Mercury = 1

    Venus = 2

    Earth = 3

    Mars = 4

    Jupiter = 5

    Saturn = 6

    Uranus = 7

    Neptune = 8

print(len(Planets))

print(Planets.Earth.value)

print(Planets.Earth.name)

planet_selected = 'Pluto'

if isinstance(planet_selected, Planets):

    print(planet_selected + ' is a valid planet')

else:

    print('That is not a planet')

planet_selected = int(input('Enter the planet # you would like to visit: '))

print(Planets(planet_selected).name)

Daily Assignment

• create a program (by using the Planet program as a model) that will display the days of the week
  • when the user chooses a specific day, it will return "Your favorite day of the week is __"
  • you MUST create an enumerated type for the days of the week.

Extra

• work on the weekly assignment

Homework!

• read over Representing and Sorting Data, Chapter 6
  • Computer Based Problem Solving
  • "Enumerated Types"