Create a Python project fly_drone. Add a Python file drone. py to this project. Define a class Drone in this file. This class has the following five methods: (a) __init__ : Create two instance variables to store the speed and the height of the drone. Initialize them to 0.0. This method has no parameters other than self and no return value. (b) accelerate : Increase the speed of the drone by 10. This method has no parameters other than self and no return value. (c) decelerate : Decrease the speed of the drone by 10. The new speed cannot be negative. This method has no parameters other than self and no return value. (d) ascend : Increase the height of the drone by 10. This method has no parameters other than self and no return value. (e) descend : Decrease the height of the drone by 10. The new height cannot be negative. This method has no parameters other than self and no return value.

Following are the python code to this question:

class Drone: #define class  

   def __init__(self): #define constructor

       self.speed = 0.0 #define variable speed and assign value  

       self.height = 0.0 #define variable speed and assign value

   def accelerate(self): #define method accelerate

       self.speed += 10  #add value 10 in speed

   def decelerate(self): #define method decelerate

       if(self.speed >= 10):  #define condition that checks speed value is greater then equal to 10

           self.speed -= 10 #subtract value of speed by 10

       else: #else block  

           self.speed = 0 #assign value 0 in speed variable  

   def ascend(self): #define method ascend

       self.height += 10  #add value 10 in height

   def descend(self): #define method descend

       if(self.height>=10):   #define condition that checks height value is greater then equal to 10

           self.height -= 10   #subtract value of height by 10

       else: #else block

           self.height = 0  #assign value 0 in variable height

drone = Drone() #create class object

f = True #define variable f and assign bool value

while(f): #define that calculate value

   c = int(input("please select by your choice: for accelerate = 1, for decelerate = 2, for ascend = 3,for descend = 4,for exit = 0: "))

   #define variable that take input from user and convert value in integer

if(c==1): #check c value is equal to 1

       drone.accelerate() #call accelerate method

Output:

Please find the attachment.

Explanation:

In the code part there are some code which can't inserted in so, we give the image of the full code, please find in attachment.  

In the python code, a class "Drone", is declared, inside the class, a constructor, and four methods "accelerate, decelerate, ascend, and descend" is declared.

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