Operations with sets

Sets are useful in performing different operations such as finding union of sets, intersection and so on.

Union of sets can be obtained by union or operator |:

In [1]: vlans1 = {10,20,30,50,100}
In [2]: vlans2 = {100,101,102,102,200}

In [3]: vlans1.union(vlans2)
Out[3]: {10, 20, 30, 50, 100, 101, 102, 200}

In [4]: vlans1 | vlans2
Out[4]: {10, 20, 30, 50, 100, 101, 102, 200}

Intersection of sets can be obtained by intersection or operator &:

In [5]: vlans1 = {10,20,30,50,100}
In [6]: vlans2 = {100,101,102,102,200}

In [7]: vlans1.intersection(vlans2)
Out[7]: {100}

In [8]: vlans1 & vlans2
Out[8]: {100}