I need to combine dictionaries that have the same value for the key "tag".

Like from this:

[
    [
        {
            "tag": "#2C00L02RU",
            "stamina": 233
        },
        {
            "tag": "#8YG8RJV90",
            "stamina": 20
        },
        {
            "tag": "#LQV2JCPR",
            "stamina": 154
        },
        {
            "tag": "#9JQLPGLJJ",
            "stamina": 134
        }
    ],
    [
        {
            "tag": "#2C00L02RU",
            "health": 200
        },
        {
            "tag": "#8YG8RJV90",
            "health": 40
        },
        {
            "tag": "#LQV2JCPR",
            "health": 100
        },
        {
            "tag": "#9JQLPGLJJ",
            "health": 240
        }
    ],
    [
        {
            "tag": "#LQV2JCPR",
            "fame": 1
        },
        {
            "tag": "#8YG8RJV90",
            "fame": 2
        },
        {
            "tag": "#9JQLPGLJJ",
            "fame": 3
        },
        {
            "tag": "#2C00L02RU",
            "fame": 4
        }
    ],
    [
        {
            "tag": "#LQV2JCPR",
            "moves": 6
        },
        {
            "tag": "#8YG8RJV90",
            "moves": 0
        },
        {
            "tag": "#9JQLPGLJJ",
            "moves": 8
        },
        {
            "tag": "#2C00L02RU",
            "moves": 4
        }
    ]
]

to this:

[
    {
        "tag": "#2C00L02RU",
        "stamina": 233,
        "health": 200,
        "fame": 4,
        "moves": 4
    },
    {
        "tag": "#8YG8RJV90",
        "stamina": 20,
        "health": 40,
        "fame": 2,
        "moves": 2
    },
    {
        "tag": "#LQV2JCPR",
        "stamina": 154,
        "health": 100,
        "fame": 1,
        "moves": 6
    },
    {
        "tag": "#9JQLPGLJJ",
        "stamina": 134,
        "health": 240,
        "fame": 3,
        "moves": 8
    }
]

I've already tried iterating through countless loops, but only got failures. I won't show any of my attempts here because they didn't even come close to the expected result.

If you need any other information, just let me know.

CodePudding user response：

If lst is list from your question, you can do:

out = {}
for l in lst:
    for d in l:
        out.setdefault(d["tag"], {}).update(d)

print(list(out.values()))

Prints:

[
    {"tag": "#2C00L02RU", "stamina": 233, "health": 200, "fame": 4, "moves": 4},
    {"tag": "#8YG8RJV90", "stamina": 20, "health": 40, "fame": 2, "moves": 0},
    {"tag": "#LQV2JCPR", "stamina": 154, "health": 100, "fame": 1, "moves": 6},
    {"tag": "#9JQLPGLJJ", "stamina": 134, "health": 240, "fame": 3, "moves": 8},
]