Python 添加新的 key/value 到键与值匹配的字典列表

Question

我有以下词典列表：

data = {
            "coms": [
                {
                    "eid": "8b1fac95-edc9-43c9-a136-4b25939cedc1",
                    "nid": "8d769a38-a3e2-4bf4-96f4-c17999e6b5a3",
                },
                {
                    "eid": "b8b30d9f-fe5f-4eba-a1cf-56876b82aa4e",
                    "nid": "3265b9ac-67ee-46e4-ab40-d509e90a378b",

                }
            ]
        }

我有一个匹配的键 (match_key) 和值 (nsrid)：

nsrid = "b9ec3267-5b77-4f87-aeb5-cd11c28bd518"
match_nid = "8d769a38-a3e2-4bf4-96f4-c17999e6b5a3"

我想知道如何在列表中的字典中创建一个新的 key/value {'nsrid:' nsrid} 对，其中 match_nid 与我的字典列表中的 nid 匹配，所以像这样：

data = {
            "coms": [
                {
                    "eid": "8b1fac95-edc9-43c9-a136-4b25939cedc1",
                    "nid": "8d769a38-a3e2-4bf4-96f4-c17999e6b5a3",
                    "nsrid": "b9ec3267-5b77-4f87-aeb5-cd11c28bd518",
                },
                {
                    "eid": "b8b30d9f-fe5f-4eba-a1cf-56876b82aa4e",
                    "nid": "3265b9ac-67ee-46e4-ab40-d509e90a378b",

                }
            ]
        }

作为循环机制的一部分，nsrid可能会发生变化，而第二次围绕nsrid可能与第二个字典nid有关，所以我需要保留之前的更新，例如：

nsrid = "3797ce00-3e50-4286-a113-38bd61030fdc"
match_nid = "3265b9ac-67ee-46e4-ab40-d509e90a378b"

data = {
            "coms": [
                {
                    "eid": "8b1fac95-edc9-43c9-a136-4b25939cedc1",
                    "nid": "8d769a38-a3e2-4bf4-96f4-c17999e6b5a3",
                    "nsrid": "b9ec3267-5b77-4f87-aeb5-cd11c28bd518",
                },
                {
                    "eid": "b8b30d9f-fe5f-4eba-a1cf-56876b82aa4e",
                    "nid": "3265b9ac-67ee-46e4-ab40-d509e90a378b",
                    "nsrid": "3797ce00-3e50-4286-a113-38bd61030fdc",

                }
            ]
        }

Answer 1

这是否解决了您的问题？

data = {
            "coms": [
                {
                    "eid": "8b1fac95-edc9-43c9-a136-4b25939cedc1",
                    "nid": "8d769a38-a3e2-4bf4-96f4-c17999e6b5a3",
                },
                {
                    "eid": "b8b30d9f-fe5f-4eba-a1cf-56876b82aa4e",
                    "nid": "3265b9ac-67ee-46e4-ab40-d509e90a378b",

                }
            ]
        }

nsrid = "b9ec3267-5b77-4f87-aeb5-cd11c28bd518"
match_nid = "8d769a38-a3e2-4bf4-96f4-c17999e6b5a3"

for index in range(len(data["coms"])):
    if data["coms"][index]["nid"] == match_nid:
        data["coms"][index]["nsrid"] = nsrid

Python 添加新的 key/value 到键与值匹配的字典列表

Python add new key/value to list of dictionaries where key matches a value

python-3.x