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answer.py1 lines ASCII Unix (LF) #!/usr/bin/env python3
"""
f61f6e21a6d322a5ee76591e1f252f16
oopython
lab1
mosstud
2016-05-19 09:24:07
v2.2.13 (2016-05-18)
Generated 2017-01-23 17:55:59 by dbwebb lab-utility v2.2.26 (2017-01-20).
https://github.com/mosbth/lab
"""
from dbwebb import Dbwebb
# pylint: disable=invalid-name
dbwebb = Dbwebb()
dbwebb.ready_to_begin()
# ==========================================================================
# Lab 1 - oopython
#
# If you need to peek at examples or just want to know more, take a look at
# the [Python documentation](https://docs.python.org/3/library/index.html).
# Here you will find everything this lab will go through and much more.
#
# --------------------------------------------------------------------------
# Section 1. Objects and classes
#
# Basic object oriented python.
#
# """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
# Exercise 1.1
#
# Create a class called Cat in a new file. Give the Cat the attributes
# `eyeColor` and `name` in the constructor.
#
# Dont forget to import the file.
#
# In the code below initiate a variable named `cat` with a *Cat object*, give
# it eye color "red" and name "Gordon".
#
# Answer with the string "My cats name is `name` and has `eyeColor` eyes.".
#
# Write your code below and put the answer into the variable ANSWER.
#
ANSWER = "Replace this text with the variable holding the answer."
# I will now test your answer - change false to true to get a hint.
dbwebb.assert_equal("1.1", ANSWER, False)
# """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
# Exercise 1.2
#
# Expand your Cat class with the variables `livesLeft`.
#
# Initialize the attribute in the constructor to `-1`. In the code below
# change the value to `8`.
#
# Answer with number of lives the cat has left.
#
# Write your code below and put the answer into the variable ANSWER.
#
ANSWER = "Replace this text with the variable holding the answer."
# I will now test your answer - change false to true to get a hint.
dbwebb.assert_equal("1.2", ANSWER, False)
# """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
# Exercise 1.3
#
# Create a new function in the Cat class, called `description()`, that
# returns the string "My cats name is `name`, has `color` eyes and
# `livesLeft` lives left to live.".
#
# Answer with the result returned from the function.
#
# Write your code below and put the answer into the variable ANSWER.
#
ANSWER = "Replace this text with the variable holding the answer."
# I will now test your answer - change false to true to get a hint.
dbwebb.assert_equal("1.3", ANSWER, False)
# """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
# Exercise 1.4
#
# Create a new class named Dog, it should look the same as the Cat class. But
# in the description function it should print "My dogs name..." instead of
# "My cats name...".
#
# In the constructor set lives left to live to `1`. Dont forget to import the
# new class.
# Initiate a new variable called `dog` with the *Dog class*, give dog the
# name "Denna" and eye color "blue".
#
# Put cat and dog variables in a list. Iterate through the list and put their
# descriptions together in a string without any seperation between the two.
#
# Answer with the string.
#
# Write your code below and put the answer into the variable ANSWER.
#
ANSWER = "Replace this text with the variable holding the answer."
# I will now test your answer - change false to true to get a hint.
dbwebb.assert_equal("1.4", ANSWER, False)
# """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
# Exercise 1.5
#
# Create a private variable for the Cat class called `evil`.
# In the constructor the variable should be set to `True` by default if no
# argument is given.
#
# Create a function in the class that returns if the cat is evil or not.
#
# Answer with if the cat is evil or not.
#
# Write your code below and put the answer into the variable ANSWER.
#
ANSWER = "Replace this text with the variable holding the answer."
# I will now test your answer - change false to true to get a hint.
dbwebb.assert_equal("1.5", ANSWER, False)
# """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
# Exercise 1.6
#
# In the code below create a function that takes a Cat object as an argument.
# If attribute `evil` for Cat is true, return "All cats are evil!" otherwise
# return "This cat is not evil!".
#
# Answer with the returned string.
#
# Write your code below and put the answer into the variable ANSWER.
#
ANSWER = "Replace this text with the variable holding the answer."
# I will now test your answer - change false to true to get a hint.
dbwebb.assert_equal("1.6", ANSWER, False)
# """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
# Exercise 1.7
#
# Create a static variable in the Cat class that contains the number of paws
# a cat have. Set its value to `4` in the declaration.
#
# Answer with the string "`Gordon` has `4` paws."
#
# Write your code below and put the answer into the variable ANSWER.
#
ANSWER = "Replace this text with the variable holding the answer."
# I will now test your answer - change false to true to get a hint.
dbwebb.assert_equal("1.7", ANSWER, False)
# """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
# Exercise 1.8
#
# In the code below assign the number of paws variable for `cat` to `3`.
#
# Answer with the string "`Gordon` has `3` paws but cats have
# `<Cat.nrOfpaws>` paws.".
#
# Write your code below and put the answer into the variable ANSWER.
#
ANSWER = "Replace this text with the variable holding the answer."
# I will now test your answer - change false to true to get a hint.
dbwebb.assert_equal("1.8", ANSWER, False)
# --------------------------------------------------------------------------
# Section 2. Inheritance
#
#
#
# """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
# Exercise 2.1
#
# Create a new class, Animal, that will act as a *parent* to Cat and Dog.
# The Animal class shall contain the attributes `name` and `eyeColor` instead
# of the Cat and Dog classes.
# Rewrite Dog and Cat so that they inherit from Animal.
#
# Answer with the description from `cat` and `dog`, seperated with space.
#
# Write your code below and put the answer into the variable ANSWER.
#
ANSWER = "Replace this text with the variable holding the answer."
# I will now test your answer - change false to true to get a hint.
dbwebb.assert_equal("2.1", ANSWER, False)
# """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
# Exercise 2.2
#
# Create a new function in Animal named `speak`, *force* child classes to
# override it.
#
# Overwrite it in Dog and Cat. In dog return "Voff" and in cat "Meow".
#
# Create another function in Animal called `speakTwice`. It should return a
# string where `self.speak` is called twice, with space as seperation between
# the two.
#
# Answer with `speakTwice` for dog.
#
# Write your code below and put the answer into the variable ANSWER.
#
ANSWER = "Replace this text with the variable holding the answer."
# I will now test your answer - change false to true to get a hint.
dbwebb.assert_equal("2.2", ANSWER, False)
# """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
# Exercise 2.3
#
# Create a static method in Dog called `interact`. Its input parameter should
# be an object.
# If the argument is of class Cat return the string "Chase!" otherwise return
# "Lick!".
#
# Answer with dog interact function and pass dog as argument.
#
# Write your code below and put the answer into the variable ANSWER.
#
ANSWER = "Replace this text with the variable holding the answer."
# I will now test your answer - change false to true to get a hint.
dbwebb.assert_equal("2.3", ANSWER, False)
# --------------------------------------------------------------------------
# Section 3. Overriding methods
#
#
#
# """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
# Exercise 3.1
#
# Create a new class called BankAccount.
#
# Declare the attributes `balance` and `owner` in the constructor. `owner`
# should be a private attribute.
#
# The constructor should take the name for the owner as argument. Balance
# should be initalized to `193` in the constructor.
#
# BankAccount should also have four functions: `accountInfo` `getBalance`,
# `depositMoney` and `withdrawMoney`.
# accountInfo returns "`Misty` has `278` kr".
# getBalance returns the balance.
# depositMoney takes one argument, `amount`, and adds the amount to the
# balance.
# withdrawMoney draws the `amount` of money sent as an argument from balance.
#
# In the code below create a function, where you create a *new instance of
# the class BankAccount*, the function should take the `owner` name as
# argument, and return the created object.
#
# Create a new variable called `bankAccount1` and initialize it with the
# create bank account function, name the owner "Misty".
# Deposit `85` kr to the account and answer with the `accountInfo` function.
#
# Write your code below and put the answer into the variable ANSWER.
#
ANSWER = "Replace this text with the variable holding the answer."
# I will now test your answer - change false to true to get a hint.
dbwebb.assert_equal("3.1", ANSWER, False)
# """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
# Exercise 3.2
#
# Overload the *add(+)* function for the BankAccount class. The function
# should be able to sum the balance of two bank accounts (BankAccount +
# BankAccount) and BankAccount + an int.
#
# Initiate a new BankAccount called `bankAccount2` with the owner "Lilly" and
# withdraw `59` kr from it.
#
# Answer with `bankAccount1 + bankAccount2`.
#
# Write your code below and put the answer into the variable ANSWER.
#
ANSWER = "Replace this text with the variable holding the answer."
# I will now test your answer - change false to true to get a hint.
dbwebb.assert_equal("3.2", ANSWER, False)
# """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
# Exercise 3.3
#
# Overload the *iadd(+=)* function for the BankAccount class. The function
# should be able to add two bank accounts together (BankAccount +=
# BankAccount) and BankAccount += an int.
#
# Update `bankAccount1` with `bankAccount1 += bankAccount2`.
#
# Answer with `accountInfo` for bankAccount1.
#
# Write your code below and put the answer into the variable ANSWER.
#
ANSWER = "Replace this text with the variable holding the answer."
# I will now test your answer - change false to true to get a hint.
dbwebb.assert_equal("3.3", ANSWER, False)
# """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
# Exercise 3.4
#
# If you look in the `iadd` and `add` functions for BankAccount you should be
# using basically the same code in both functions.
# To minize code size of the class, create a private function where you do
# the shared calculations and then call it from `iadd` and `add`.
#
# calculate `bankAccount2 += bankAccount1 + 5`.
#
# Answer with bankAccount2.accountInfo()
#
# Write your code below and put the answer into the variable ANSWER.
#
ANSWER = "Replace this text with the variable holding the answer."
# I will now test your answer - change false to true to get a hint.
dbwebb.assert_equal("3.4", ANSWER, False)
dbwebb.exit_with_summary()