print(sorted({1,2}.symmetric_difference({2,3})))
print(sorted({1,2}.symmetric_difference([2,3])))
s = {1,2}
print(s.symmetric_difference_update({2,3}))
print(sorted(s))

            

Reported by Pylint.

              # set object with special methods

s = {1, 2}
print(s.__contains__(1))
print(s.__contains__(3))

            

Reported by Pylint.

              s = {1}
print(s.pop())
try:
    print(s.pop(), "!!!")
except KeyError:
    pass
else:
    print("Failed to raise KeyError")


            

Reported by Pylint.

              i = iter(iter({1, 2, 3}))
print(sorted(i))

            

Reported by Pylint.

              sets = [set(), {1}, {1, 2, 3}, {3, 4, 5}, {5, 6, 7}]
args = sets + [[1], [1, 2], [1, 2 ,3]]
for i in sets:
    for j in args:
        print(i.issubset(j))
        print(i.issuperset(j))

            

Reported by Pylint.

              s = {1, 2, 3, 4}
print(s.isdisjoint({1}))
print(s.isdisjoint([2]))
print(s.isdisjoint([]))
print(s.isdisjoint({7,8,9,10}))
print(s.isdisjoint([7,8,9,1]))

            

Reported by Pylint.

              s = {1, 2, 3, 4}
print(sorted(s))
print(sorted(s.intersection({1, 3})))
print(sorted(s.intersection([3, 4])))

print(s.intersection_update([1]))
print(sorted(s))

            

Reported by Pylint.

              s = {1, 2}
print(s.discard(1))
print(list(s))

            

Reported by Pylint.

              l = [1, 2, 3, 4]
s = set(l)
outs = [s.difference(),
        s.difference({1}),
        s.difference({1}, [1, 2]),
        s.difference({1}, {1, 2}, {2, 3})]
for out in outs:
    print(sorted(out))


            

Reported by Pylint.

              s = {1, 2, 3, 4}
t = s.copy()
s.add(5)
t.add(7)
for i in s, t:
    print(sorted(i))

            

Reported by Pylint.