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In Python, sets are versatile data structures, and there are numerous methods available for manipulating and working with sets. Here’s a list of common methods you can use on sets in Python:
set.add(element): Adds an element to the set.
my_set = {1, 2, 3}
print('original set:',my_set)
my_set.add(4)
print('Modified set:',my_set)
# Output -
# original set: {1, 2, 3}
# Modified set: {1, 2, 3, 4}
set.clear(): Removes all elements from the set.
my_set = {1, 2, 3}
print('original set:',my_set)
my_set.clear()
print('Modified set:',my_set)
# Output -
# original set: {1, 2, 3}
# Modified set: set()
set.copy(): Returns a shallow copy of the set.
my_set = {1, 2, 3}
print('original set:',my_set)
copy_of_set = my_set.copy()
print('Copied set:',copy_of_set)
# Output -
# original set: {1, 2, 3}
# Copied set: {1, 2, 3}
set.difference(other_set): Returns a new set with elements in the first set but not in the second set.
set1 = {1, 2, 3}
set2 = {3, 4, 5}
difference_set = set1.difference(set2)
print('original set:',set1)
print('difference set:',difference_set)
# Output -
# original set: {1, 2, 3}
# difference set: {1, 2}
set.difference_update(other_set):Removes all elements from the set that are also in another set.
set1 = {1, 2, 3}
set2 = {3, 4, 5}
print('original set:',set1)
set1.difference_update(set2)
print('Modified set:',set1)
# Output -
# original set: {1, 2, 3}
# Modified set: {1, 2}
set.discard(element): Removes the specified element from the set if present.
my_set = {1, 2, 3}
print('original set:',my_set)
my_set.discard(2)
print('Modified set:',my_set)
# Output -
# original set: {1, 2, 3}
# Modified set: {1, 3}
set.intersection(other_set): Returns a new set with common elements from both sets.
set1 = {1, 2, 3}
set2 = {3, 4, 5}
intersection_set = set1.intersection(set2)
print('original set:',set1)
print('intersection set:',intersection_set)
# Output -
# original set: {1, 2, 3}
# intersection set: {3}
set.intersection_update(other_set): Updates the set with the intersection of itself and another set.
set1 = {1, 2, 3}
set2 = {3, 4, 5}
print('original set:',set1)
set1.intersection_update(set2)
print('Modified set:',set1)
# Output -
# original set: {1, 2, 3}
# Modified set: {3}
set.isdisjoint(other_set): Returns True if two sets have no elements in common.
set1 = {1, 2, 3}
set2 = {4, 5, 6}
is_disjoint = set1.isdisjoint(set2)
print('original set:',set1)
print('Is disjoint:',is_disjoint)
# Output -
# original set: {1, 2, 3}
# Is disjoint: True
set.issubset(other_set): Returns True if the set is a subset of another set.
set1 = {1, 2}
set2 = {1, 2, 3, 4}
is_subset = set1.issubset(set2)
print('original set:',set1)
print('Is Subset:',is_subset)
# Output -
# original set: {1, 2}
# Is Subset: True
set.issuperset(other_set): Returns True if the set is a superset of another set.
set1 = {1, 2, 3, 4}
set2 = {1, 2}
is_superset = set1.issuperset(set2)
print('original set:',set1)
print('Is Superset:',is_superset)
# Output -
# original set: {1, 2, 3, 4}
# Is Superset: True
set.pop(): Removes and returns an arbitrary element from the set.
my_set = {1, 2, 3}
print('original set:',my_set)
popped_element = my_set.pop()
print('Modified set:',my_set)
# Output -
# original set: {1, 2, 3}
# Modified set: {2, 3}
set.remove(element): Removes the specified element from the set. Raises a KeyError if the element is not found.
my_set = {1, 2, 3}
print('original set:',my_set)
my_set.remove(2)
print('Modified set:',my_set)
# Output -
# original set: {1, 2, 3}
# Modified set: {1, 3}
set.symmetric_difference(other_set): Returns a new set with elements in either set, but not both.
set1 = {1, 2, 3}
set2 = {3, 4, 5}
symmetric_difference_set = set1.symmetric_difference(set2)
print('original set:',set1)
print('symmetric difference set:',symmetric_difference_set)
# Output -
# original set: {1, 2, 3}
# symmetric difference set: {1, 2, 4, 5}
set.symmetric_difference_update(other_set): Updates the set with the symmetric difference of itself and another set.
set1 = {1, 2, 3}
set2 = {3, 4, 5}
print('original set:',set1)
set1.symmetric_difference_update(set2)
print('Modified set:',set1)
# Output -
# original set: {1, 2, 3}
# Modified set: {1, 2, 4, 5}
set.union(other_set): Returns a new set with all unique elements from both sets.
set1 = {1, 2, 3}
set2 = {3, 4, 5}
union_set = set1.union(set2)
print('original set:',set1)
print('union set:',union_set)
# Output -
# original set: {1, 2, 3}
# union set: {1, 2, 3, 4, 5}
set.update(other_set): Updates the set with the union of itself and another set.
set1 = {1, 2, 3}
set2 = {3, 4, 5}
print('original set:',set1)
set1.update(set2)
print('Modified set:',set1)
# Output -
# original set: {1, 2, 3}
# Modified set: {1, 2, 3, 4, 5}
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