Format
A ^= B
Set A equal to A ^ B. It is shorthand for A = A ^ B.
If A and B are lists, any items that are found in both lists are removed from A, and then any items found only in B are added to A.
A ^= B
Set A equal to A ^ B. It is shorthand for A = A ^ B.
If A and B are lists, any items that are found in both lists are removed from A, and then any items found only in B are added to A.