from vehicle import Vehicle
v = Vehicle('4-cyclider',
['front-driver', 'front-pasenger', 'rear-driver', 'rear-pasenger'])
#print(v.engine)
v.description()
#we can treat vehcile object as namespace and can add attributes at runtime
#adding attributes at runtime
v.serial_number = '1234'
print(f'Serial Number: {v.serial_number}')
#removing attirbute at runtime
del v.serial_number
#this will throw error because we have now delete the serial number attribute from Vechicl instance
print(f'Serial Number: {v.serial_number}')
from vehicle import Vehicle from bicycle import Bicycle vehicle = Vehicle() bike = Bicycle() vehicle.description() bike.description()
