Question

Python

vUniess you need to edit, it's safer to stay in Enable Editing Propiem 1 Write a class definition line and a one line docstring for the class Dog. Write an_ nit_ method for the class Dog that gives each dog its own name and breed. Test this on a successful creation of a Dog object import dop sugar dog.Dog( Sugar, border collie) >>>sugar.name Sugar >sugar.breed Problem 2 Add a data attribute tricks of type list to each Dog instance and initialize it in init to the empty upply a list of tricks when constructing a Dog instance. Make sure that you test this successfully >sugar.tricks Problem 3 Write a method teach as part of the class Dog. The method teach should add a passed string parameter to tricks and print a message that the dog knows the trick. sugar.teach( frisbee') Sugar knows frisbee Problem 4 Write a method knows as part of the class Dog. The method knows should check whether a passed :s parameter is in the dog's list of tricks, print an appropriate message and return true or False »>> sugar.knows( frisbee') ring

Answer 1

class Dog:
    species = 'Canis familiaris'  # data attribute species

    def __init__(self, name, breed):  # initialize name and tricks for each dog
        self.name = name
        self.breed = breed
        self.tricks = []

    def teach(self, trick):
        self.tricks.append(trick)  # add passed trick to tricks list
        print(self.name, 'knows', trick)  # print message

    def knows(self, trick):
        if trick in self.tricks:  # If passed trick exists in list, print that dog knows trick else not
            print('Yes,', self.name, 'knows', trick)
            return True
        else:
            print('No', self.name, 'doesn\'t know', trick)
            return False

SCREENSHOT

dog-py 1 2 3 class Dog: species- ,Canis familiaris' # da ta attribute species def init (self, name, breed): # ǐnitialize name and tricks for each dog sel f . name = name self. breed breed self.tricks [ def teach (self, trick): self.tricks.append(trick) # add passed trick to tricks list print (self.name, 'knows, trick) # print message 10 12 13 14 15 16 17 18 19 20 def knows (self, trick): if trick in self .tricks : # If passed trick exists in list, print that dog knows trick else not print ('Yes,', self.name, knows', trick) return True else print ('No',self.name, "doesn\ 't know', trick) return False

OUTPUT

Python 3.6.4 (v3.6.4:d48eceb, Dec 19 >>import dog sugardog. Dog (Sugar', '"border c sugar.name Sugar >>sugar.breed border collie >>sugar.tricks >sugar.teach frisbee') Sugar knows frisbee sugar.knows ('frisbee) Yes, Sugar knows frisbee rue sugar. knows ('arithmetic') o Sugar doesn't know arithmetic False >>dog.Dog.species Canis familiaris' >>>sugar.species Canis familiaris'