Python Docs

Python Sets — Full Notes

A set is an unordered collection of unique items.

myset = {"apple", "banana", "cherry"}

thisset = {"apple", "banana", "cherry"}
print(thisset)

thisset = {"apple", "banana", "cherry", "apple"}
print(thisset)

thisset = {"apple", "banana", "cherry", True, 1, 2}
print(thisset)

thisset = {"apple", "banana", "cherry", False, True, 0}
print(thisset)

thisset = {"apple", "banana", "cherry"}
print(len(thisset))

set1 = {"apple", "banana", "cherry"}
set2 = {1, 5, 7, 9, 3}
set3 = {True, False, False}

set1 = {"abc", 34, True, 40, "male"}

thisset = set(("apple", "banana", "cherry"))
print(thisset)

thisset = {"apple", "banana", "cherry"}
for x in thisset:
  print(x)

thisset = {"apple", "banana", "cherry"}
print("banana" in thisset)

thisset = {"apple", "banana", "cherry"}
print("banana" not in thisset)

thisset = {"apple", "banana", "cherry"}
thisset.add("orange")
print(thisset)

thisset = {"apple", "banana", "cherry"}
tropical = {"pineapple", "mango", "papaya"}
thisset.update(tropical)
print(thisset)

thisset = {"apple", "banana", "cherry"}
mylist = ["kiwi", "orange"]
thisset.update(mylist)
print(thisset)

thisset = {"apple", "banana", "cherry"}
thisset.remove("banana")
print(thisset)

thisset = {"apple", "banana", "cherry"}
thisset.discard("banana")
print(thisset)

thisset = {"apple", "banana", "cherry"}
x = thisset.pop()
print(x)
print(thisset)

thisset = {"apple", "banana", "cherry"}
thisset.clear()
print(thisset)

thisset = {"apple", "banana", "cherry"}
del thisset

Method	Description
add()	Adds an element to the set.
clear()	Removes all elements from the set.
copy()	Returns a shallow copy of the set.
difference()	Returns items present only in the first set.
difference_update()	Removes items found in another set.
discard()	Removes an item but does not give an error if missing.
intersection()	Returns items common to both sets.
intersection_update()	Removes items not present in all sets.
isdisjoint()	Returns True if sets have no common items.
issubset()	Returns True if all items exist in another set.
issuperset()	Returns True if this set contains all items of another set.
pop()	Removes a random item from the set.
remove()	Removes a specific item, error if missing.
symmetric_difference()	Returns items NOT common in both sets.
symmetric_difference_update()	Updates set with symmetric difference.
union()	Returns a new set with items from all sets.
update()	Adds items from other iterables to the set.