Sets Cheatsheet

1. .add(item): Adds a single item in a set s1={12,34,23,56,78,45} s1.add(3.14) # {12,34,23,56,78,45,3.14}

2. .upate(iterables): Updates a set by adding an iterable(list,set,tuple) in a set. s1={12,34,23,56,78,45} s1.update([1.23,4.20,5.67]) # {12,1.23,23,34,4.20,45,56,78,5.67}

3. .union(set): Returns a snew set consist of items from both sets. s1={12,34,23,56,78,45} s2={1.23,4.20,5.67} s1.union(s2) # {12,1.23,23,34,4.20,45,56,78,5.67}

4. .remove(item): Removes a specific item from the set. s1={12,34,23,56,78,45} s1.remove(56) # {12,34,23,78,45}

5. .discard(item): Removes a specific item from the set. s1={12,34,23,56,78,45} s1.discard(34) # {12,23,56,78,45}

6. .pop(): Removes an item randomly from the set. s1={12,34,23,56,78,45} s1.pop() # {12,34,23,56,45}

7. .clear(): Removes all the items from the set. s1={12,34,23,56,78,45} s1.clear() # set()

8. .copy(set): Copies items of one set into another s1={12,34,23,56,78,45} s2=s1.copy() # s2={12,34,23,56,78,45}

9. .intersection(set): Returns a new set with common items from both the sets s1={12,34,23,56,78,45} s2={1,2,34,56,78,9,11} s1.intersection(s2) # {34,56,78}

10. .difference(): Returns a new set with the items in the first set but not in the second. s1={12,34,23,56,78,45} s2={1,2,34,56,78,9,11} s1.difference(s2) # {12,23,45}

11. .symmetric_difference(): Returns a new set with uncommon items from both sets. s1={12,34,23,56,78,45} s2={1,2,34,56,78,9,11} s1.symmetric_difference(s2) # {12,23,45,1,2,9,11}