Merge of list problem: merging two-dimensional array under certain conditions-CodePudding

I want to merge the third index (number list) in test_list if the first two, index('2021-03-18', 'Night'), are the same. for example:
test_list:

[['2021-03-18', 'Night', [9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27]],\
['2021-03-18', 'Night',[46, 47, 48, 49, 50, 51, 53, 54, 55, 56, 57, 58, 59]],
['2021-03-19','Other', [33, 34, 35, 36, 37, 38, 57,58,59]]]

How do I merge this into a list like this?
Desired result:

['2021-03-18', 'Night', [9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27, 46, 47, 48, 49, 50, 51, 53, 54, 55, 56, 57, 58, 59]],
['2021-03-19', 'Other', [33, 34, 35, 36, 37, 38, 57,58,59]]
]

CodePudding user response：

test_list = [['2021-03-18', 'Night', [9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27]], \
    ['2021-03-18', 'Night', [46, 47, 48, 49, 50, 51, 53, 54, 55, 56, 57, 58, 59]], \
    ['2021-03-19','Other', [33, 34, 35, 36, 37, 38, 57,58,59]]]

d = {}
for date, key, lst in test_list:
    if (date, key) in d:
        d[(date, key)]  = lst
    else:
        d[(date, key)] = lst

result = [list(key)   item for key, item in d.items()]