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Using Python, I'd like to compare every possible pair in a list.
Suppose I have
my_list = [1,2,3,4]
I'd like to do an operation (let's call it foo) on every combination of 2 elements from the list.
The final result should be the same as
foo(1,1)
foo(1,2)
...
foo(4,3)
foo(4,4)
My first thought was to iterate twice through the list manually, but that doesn't seem very pythonic.