new_contents: '''
  '''
  class InvalidFlightIdException(Exception):
      def __init__(self):
          super().__init__("The flight is invalid")
  class InvalidAdultsException(Exception):
      def __init__(self):
          super().__init__("Number of adults should be between 1 and 4")
  class InvalidChildrenException(Exception):
      def __init__(self):
          super().__init__("Number of children should be between 0 and 4")
  class InvalidDateException(Exception):
      def __init__(self):
          super().__init__("Date is invalid")
  class InvalidPrimaryPassenger(Exception):
      def __init__(self):
          super().__init__("primary passenger can  not be null")
  #         
  #############module 3 exceptions
  class InvalidBookedFlightException(Exception):
      def __init__(self):
          super().__init__("The Booked flight you entered is wrong")
          
  class InvalidHotelLocationException(Exception):
      def __init__(self):
          super().__init__("The hotel location you entered is not present in our service")
  class InvalidAdultExecutiveRoomsException(Exception):
      def __init__(self):
          super().__init__("The adults vs executive rooms you selected is invalid")
  class InvalidNoOfRoomsException(Exception):
      def __init__(self):
          super().__init__("The total no of rooms you entered is invalid")
          
  
  '''
  Created on Aug 12, 2015
  
  @author: sahil.singla01
  '''
  '''
  This file has all the custom exceptions needed for the project
  '''
  class InvalidSourceException(Exception):
      def __init__(self):
          super().__init__("The source is invalid")
              
  class InvalidDestinationException(Exception):
      def __init__(self):
          super().__init__("The destination is invalid")
          
  class InvalidTimeException(Exception):
      def __init__(self):
          super().__init__("The time invalid")        
     
  class NoFlightFoundException(Exception):
      def __init__(self):
          super().__init__("No flight found for the given search conditions. Try different search values")        
          
          
  '''
  Created on Aug 13, 2015
  
  @author: sadhna01
  '''
  class InvalidHotelIdException(Exception):
      def __init__(self):
          super().__init__("The Hotel is invalid")
  class InvalidDaysOfStayException(Exception):
      def __init__(self):
          super().__init__("Days of stay should be greater than 0")
  class InvalidBookingNameException(Exception):
      def __init__(self):
          super().__init__("please provide a booking name")
  ########################################################
  
  ####cancel module
  class InvalidFlightBookingIdException(Exception):
      def __init__(self):
          super().__init__("The flight booking id  is invalid")
          
  class InvalidHotelBookingIdException(Exception):
      def __init__(self):
          super().__init__("The hotel booking id  is invalid")
      
      
  
subject: Create customExceptions.py