class Keyboard: """A Keyboard takes in a list of buttons, and has a dictionary of positions as keys, and Buttons as values. >>> b1 = Button ("button1", "H") >>> b2 = Button ("button2", "I") >>> k = Keyboard ([b1, b2]) >>> "button1" in k.buttons.keys () # Make sure to add the button to dictionary True >>> k. buttons ["button1"]. letter 'H' >>> k. buttons ["button1"].name 'button1' >>> k. press ("button1") 'H' >>> k. press ("button100") 11 >>> b1.pressed 1 >>>b2.pressed 0 >>> k. typing ( ["button1", "button2"]) 'HI' >>> k. typing ( ["button2", "button1"]) 'IH' >>> b1.pressed # make sure typing calls press! 3 >>> b2.pressed 2 ||||| def _init__(self, buttons): self.buttons = {} "*** YOUR CODE HERE ***" def press (self, name): ""Takes in a name of the button pressed, and returns that button's letter. Return an empty string. if the button does not exist. You can access the keys of a dictionary d with d. keys (). *** "***** YOUR CODE HERE *****" def typing (self, typing_input): """Takes in a list of names of buttons to be pressed, and returns the total output. Make sure to call self.press""" "***** YOUR CODE HERE *****" class Button: def _init__(self, name, letter): self.name = name self. letter = letter
class Keyboard: """A Keyboard takes in a list of buttons, and has a dictionary of positions as keys, and Buttons as values. >>> b1 = Button ("button1", "H") >>> b2 = Button ("button2", "I") >>> k = Keyboard ([b1, b2]) >>> "button1" in k.buttons.keys () # Make sure to add the button to dictionary True >>> k. buttons ["button1"]. letter 'H' >>> k. buttons ["button1"].name 'button1' >>> k. press ("button1") 'H' >>> k. press ("button100") 11 >>> b1.pressed 1 >>>b2.pressed 0 >>> k. typing ( ["button1", "button2"]) 'HI' >>> k. typing ( ["button2", "button1"]) 'IH' >>> b1.pressed # make sure typing calls press! 3 >>> b2.pressed 2 ||||| def _init__(self, buttons): self.buttons = {} "*** YOUR CODE HERE ***" def press (self, name): ""Takes in a name of the button pressed, and returns that button's letter. Return an empty string. if the button does not exist. You can access the keys of a dictionary d with d. keys (). *** "***** YOUR CODE HERE *****" def typing (self, typing_input): """Takes in a list of names of buttons to be pressed, and returns the total output. Make sure to call self.press""" "***** YOUR CODE HERE *****" class Button: def _init__(self, name, letter): self.name = name self. letter = letter
Chapter2: Using Data
Section: Chapter Questions
Problem 1CP
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OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
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