Adding Chapter 3 files

Chapter3/inheritance/inheritance1.py

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+#inheritance1.py
+class Vehicle:
+    def __init__(self, color):
+        self.i_color = color
+
+    def print_vehicle_info(self):
+        print(f"This is vehicle and I know my color is {self.i_color}")
+
+class Car (Vehicle):
+    def __init__(self, color, seats):
+        self.i_color = color
+        self.i_seats = seats
+
+    def print_me(self):
+        print( f"Car with color {self.i_color} and no of seats {self.i_seats}")
+
+class Truck (Vehicle):
+    def __init__(self, color, capacity):
+        self.i_color = color
+        self.i_capacity = capacity
+
+    def print_me(self):
+        print( f"Truck with color {self.i_color} and loading capacity {self.i_capacity} tons")
+
+
+if __name__ == "__main__":
+    car = Car ("blue", 5)
+    car.print_vehicle_info()
+    car.print_me()
+    truck = Truck("white", 1000)
+    truck.print_vehicle_info()
+    truck.print_me()

Chapter3/inheritance/inheritance2.py

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+#inheritance2.py
+class Vehicle:
+    def __init__(self, color):
+        self.i_color = color
+
+    def print_vehicle_info(self):
+        print( f"This is vehicle and I know my color is {self.i_color}")
+
+class Engine:
+    def __init__(self, size):
+        self.i_size = size
+
+    def print_engine_info(self):
+        print(f"This is Engine and I know my size is {self.i_size}")
+
+class Car (Vehicle, Engine):
+    def __init__(self, color, size, seat):
+        self.i_color = color
+        self.i_size = size
+        self.i_seat = seat
+
+    def print_car_info(self):
+        print(f"This car of color {self.i_color} with seats {self.i_seat} with engine of size {self.i_size}")
+
+
+if __name__ == "__main__":
+    car = Car ("blue", "2.5L", 5 )
+    car.print_vehicle_info()
+    car.print_engine_info()
+    car.print_car_info()