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### how to print the weight multiplicites in a column

I work with

D2=WeylCharacterRing("D2")


and I am interested in

D2(1,0).weight_multiplicities()
{(0, 1): 1, (1, 0): 1, (-1, 0): 1, (0, -1): 1}


I would like to have this result in a column. I tried as follows:

for a in D2(1,0).weight_multiplicities(): print a
(0, 1)
(1, 0)
(-1, 0)
(0, -1)


But now, I didn't have the multiplicities (the number after ":"). I would like to obtain

(0, 1): 1
(1, 0): 1
(-1, 0): 1
(0, -1):1


How can I do? Thanks.-.