Python "data naming"

My input:

test_set, like:

[['4.5', '6', 'U1'], ['5', '5', 'U1'], ['5', '7', 'U1'], ['7', '6.5', 'U1'], ['5.5', '5.5', 'U2'], ['5.5', '7.5', 'U2']]

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After this I made a lot of calculation with this data, and my "final" result is array of test_set_final

test_set_final=array([[ 1.6488378 ],
       [ 2.61782463],
       [ 0.62126043],
       [ 1.00322042],
       [ 2.08938831],
       [ 0.09282412]])

---

Now what I want to do is for test_set_fina开发者_JAVA百科l, add class name which is "stored" in last place of test_set, so that result will look, for example for test_set_final:

test_set_final=[['1.6488378' , 'U1'],['2.61782463' , 'U1'],['0.62126043' , 'U1'],['1.00322042' , 'U1'],['2.08938831' , 'U2'],,['0.09282412' , 'U2']]

---

This "test_set" data is random data and have random name of "classes", but always on last place after comma....

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This should do it (had it prepared from the last version of your question):

test_set_final = [[r, c[-1]] for [r], c in zip (test_set_final, test_set)]

Edit: Added unpacking for r - the example looked different before.