split 3 values seperated by commas into 3 different pairs

I’d like to split 3 values separated by commas

a = 'a,b,c'

into 3 different pairs:

(a,b), (b,c), (a,c)

How would I be able to do this on Python?

I have tried

n = [(x) for x in a.split(',')]
x = list(zip(n[1::], n[0::2]))

I get one pair: ('a', 'b')

>Solution :

I am not sure what the logic is behind grouping these pairs together:

(a,b), (b,c), (a,c)

However, if you wanted to group each element with every other element you can use this:

a = 'a,b,c'
my_list = a.split(',')
new_list = []
for i in my_list:
    for j in my_list:
        if i != j:

And you will get

[('a', 'b'), ('a', 'c'), ('b', 'a'), ('b', 'c'), ('c', 'a'), ('c', 'b')]

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