0

I started learning python and I'm wondering if there's a way to put a limit of values that can fit into a set and how would I tell the user that said set is full? For example 4 players can only be in one team(set).

Paul Atreidis
  • 35
  • 5
  • 1
    Does this answer your question? [How to force a list to a fixed size?](https://stackoverflow.com/questions/5944708/how-to-force-a-list-to-a-fixed-size) (I realize you specifically asked about `set()` but `collections.deque()` might help. – JonSG May 05 '21 at 21:45

1 Answers1

0

You can either create a new set class that checks for the size before adding.

class fixed_set(set):
     def __init__(self,n):
         self.max_size = n
     def add(self,player):
         if len(self)>=self.max_size:
             print("Max size reached")
         else:
             super().add(player)

This class will behave exactly as a normal set except when you try to add more than n items it will print "Max size reached"

for example:

x = fixed_set(2)     
x.add(1)
x.add(2)
x.add(3)
print(x)

will print

Max size reached
fixed_set({1,2})

meaning the new element wasn't added

kinshukdua
  • 1,944
  • 1
  • 5
  • 15
  • I'm still confused. I'm relativeley new to python and I don't what do you mean by class. – Paul Atreidis May 07 '21 at 20:07
  • You know how to use sets, right? Just copy paste the first code with `class fixed_set` and instead of `set` use fixed_set everything else should work exactly the same. Except when you try to add more than `n` players it will print a message instead. – kinshukdua May 08 '21 at 11:16