Classes

1. Fill the missing pieces of the Calculator class

Fill ____ pieces of the Calculator implemention in order to pass the assertions.

class Calculator:
    def __init__(self, var1, ____):
        self.____ = var1
        self.____ = _____
    
    def calculate_power(self):
        return self.____ ** ____.____
    
    def calculate_sum(____, var3):
        return ____.____ + ____.____ + var3

calc = Calculator(2, 3)
assert calc.calculate_power() == 8
assert calc.calculate_sum(4) == 9

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
Input In [2], in <cell line: 1>()
----> 1 calc = Calculator(2, 3)
      2 assert calc.calculate_power() == 8
      3 assert calc.calculate_sum(4) == 9

Input In [1], in Calculator.__init__(self, var1, ____)
      2 def __init__(self, var1, ____):
      3     self.____ = var1
----> 4     self.____ = _____

NameError: name '_____' is not defined

2. Finalize StringManipulator class

Fill ____ pieces and create implementation for stripped_title().

class StringManipulator:
    """____"""
    
    category = ____
    
    def __init__(self, original):
        self.string = ____
        
    def reverse_words(self):
        words = self.string.____
        self.string = ' '.join(reversed(____))
        
    def make_title(self):
        # Create implementation for this
        
    def get_manipulated(____):
        return self._____

assert StringManipulator.__doc__ == 'Docstring of StringManipulator'
assert StringManipulator.category == 'Manipulator'

str_manip = StringManipulator('cOOL pyThON')

str_manip.reverse_words()
assert str_manip.get_manipulated() == 'pyThON cOOL'

str_manip.make_title()
assert str_manip.get_manipulated() == 'Python Cool'

3. Create Dog class

Create Dog class which has the following specification:

• Dogs consume their energy by barking and gain energy by sleeping

• A fresh Dog instance has 10 units of energy

• Dog has a method sleep which gives 2 units of energy

• Dog has a method bark which consumes 1 unit of energy

• Dog has a method get_energy which returns the amount of energy left

class Dog:
    # Your implementation here

doge = Dog()
assert doge.get_energy() == 10

doge.bark()
doge.bark()
doge.bark()
assert doge.get_energy() == 7

doge.sleep()
assert doge.get_energy() == 9

another_doge = Dog()
assert another_doge.get_energy() == 10