class Airplane: def_init_(self,the_tail_number): self.tail_number = the_tail_number self.altitude = 0 self.speed = 0

def increase_speed(self): self.speed += 20

def decrease_speed (self): if self.speed < 20: self.speed = 0

else: self.speed -= 20

def increase_altitude(self): self.altitude += 500 def decrease_altitude(self): if self.altitude < 500: self.altitude = 0 else: self.altitude -= 500 def_str_(self): return f"{self.tail_number} {self.speed} {self.altitude}" from airplane import Airplane

a = Airplane("N978CP") arint(a)

for i in range(0, 5) : a.increase_speed ( )

for i in range(0, 4) : a.increase_altitude ( ) print (a)

a.decrease_speed( ) a.decrease_altitude( ) print(a)

for i in range(0, 3) : a.decrease_speed ( ) for i in range(0, 5) : a.decrease_altitude ( ) print(a)