Set.ipynb

Kernel: Unknown Kernel

s = {1,3,4,5}
s

{1, 3, 4, 5}

s.add(6)
s

{1, 3, 4, 5, 6}

s.add(3)
s

{1, 3, 4, 5, 6}

s = {"blabla", "blou"}

s

{'blabla', 'blou'}

ch = "blabla"
ch

'blabla'

ch.__hash__()

2122255220

class monObjet:
    
    def __init__(self):
        self.value = 0
        
    def __repr__(self):
        return str(self.value)
    
    def __hash__(self):
        return self.value
    
    def __equal__(self, other):
        if isinstance(other, monObjet) and other.value == self.value:
            return True
        return False

o = monObjet()
print o

0

s = set()
s.add(o)
s

{0}

o in s

False

o

4

o.value = 4

s

{4}

s.add(o)

s

{4, 4}