CODEWITHSUNDEEP
pythonlistmax
Nicolai Funch
Nicolai Funch

Reputation: 21

Python list with two values

I have a program that simulates a bus in the form of a list and there is an ability to add passengers to the bus. I want to be able to set a max number of passengers, so that if the list exceeds 25 passengers I display a code stating that the bus is full.

Is it possible to set this limit in a list with Python.

Here is a snippet of the code:


#defining a class for the passenger list
class Bus:
  passengers = []
  number_of_passengers = 0

Upvotes: 0

Views: 400

Answers (4)

haidousm
haidousm

Reputation: 555

You'd probably want to check the length of the list and then decide if you'll add a passenger or display a message. Something like so:

class Bus:

  def __init__(self, max_number_of_passengers = 25):
      self.passengers = []
      self.max_number_of_passengers = max_number_of_passengers

  def add_passenger(self, passenger):
      if len(self.passengers) > self.max_number_of_passengers:
         # display message
      else: 
         self.passengers.append(passenger)

Upvotes: 1

Onurgule
Onurgule

Reputation: 717

You can use super keyword for override lists.

class PassengerList(list):
    limit = 0
    def __init__(self, lim):
        self.limit = lim

    def append(self, item):
        if len(self) >= self.limit:
            raise Exception('Limit exceeded.')
        super(PassengerList, self).append(item)  

passengers = PassengerList(25)
passengers.append('abc')

You can set limit by parameter.

Upvotes: 3

Rahul K P
Rahul K P

Reputation: 16081

class Bus:
   
   def __init__(self, limit=25):
       self.passengers = []
       self.bus_limit = limit
       self.is_bus_full = False

   def add_passenger(self):
       if len(self.passengers) < self.bus_limit:
           self.passengers.append(1) # add dummy values
       else:
           self.is_bus_full = True
   
   def passenger_left(self):
       self.passengers.pop()

   def bus_status(self):
       if self.is_bus_full:
           return 'This bus is full'
       else:
           return 'This bus has vacant seats'

You can write something like this.

Upvotes: 0

Epsi95
Epsi95

Reputation: 9047

you can use a class

class Bus:
    def __init__(self):
        self.passengers = []
        self.MAX_LIMIT = 25
        
    def add_passenger(self, passenger):
        if(len(self.passengers) <= self.MAX_LIMIT):
            self.passengers.append(passenger)
        else:
            print('sorry bus is full')
            
    def show_passengers(self):
        print(self.passengers)
        

bus = Bus()
for i in range(26):
    bus.add_passenger(i)
    
bus.add_passenger(26) #sorry bus is full

Upvotes: 0

Related Questions