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如何比较两个python字典并找到缺失的元素?

dictionary list json python

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x__SHARINGAN____x · 技术社区 · 1 年前

我遇到了一个问题,我已经尝试了好几天,但没有任何结果,我想比较两本词典,一本词典有“赛前”足球比赛,另一本词典则有“现场”足球比赛。

我想把它们相互比较一下,如果没有赛前比赛直播,你必须打印出来,现在我会更好地显示代码

示例1

`import json

pre = [{
        "Sport": "Calcio",
        "Championship": "Italia - Serie A",
        "Home": "Genoa",
        "Away": "Inter",
        "Match Full": "Genoa v Inter",
        "URL": "https://www.bet365.it/#/AC/B1/C1/D8/E158355896/F3/I0/",
        "Start Data": "19 Lug",
        "Start Time": "21:30"
    },
    {
        "Sport": "Calcio",
        "Championship": "Italia - Serie A",
        "Home": "Parma",
        "Away": "Fiorentina",
        "Match Full": "Parma v Fiorentina",
        "URL": "https://www.bet365.it/#/AC/B1/C1/D8/E158355904/F3/I0/",
        "Start Data": "17 Ago",
        "Start Time": "18:30"
    }]

live = [{
        "Sport": "Calcio",
        "Championship": "Myanmar - Lega Nazionale",
        "Home": "Dagon Star United FC",
        "Away": "Ispe FC",
        "Match Full": "Dagon Star United FC v Ispe FC"
    },
    {
        "Sport": "Calcio",
        "Championship": "Italia - Serie A",
        "Home": "Genoa",
        "Away": "Inter",
        "Match Full": "Genoa v Inter"
    }]

check = [[x for x in pre if x['Match Full'] != i['Match Full']] for i in live]

print(check)`

我没有收到预期的结果,我还尝试了以下代码,但没有收到正确的结果

示例2

`import json

pre = [{
        "Sport": "Calcio",
        "Championship": "Italia - Serie A",
        "Home": "Genoa",
        "Away": "Inter",
        "Match Full": "Genoa v Inter",
        "URL": "https://www.bet365.it/#/AC/B1/C1/D8/E158355896/F3/I0/",
        "Start Data": "19 Lug",
        "Start Time": "21:30"
    },
    {
        "Sport": "Calcio",
        "Championship": "Italia - Serie A",
        "Home": "Parma",
        "Away": "Fiorentina",
        "Match Full": "Parma v Fiorentina",
        "URL": "https://www.bet365.it/#/AC/B1/C1/D8/E158355904/F3/I0/",
        "Start Data": "17 Ago",
        "Start Time": "18:30"
    }]

live = [{
        "Sport": "Calcio",
        "Championship": "Myanmar - Lega Nazionale",
        "Home": "Dagon Star United FC",
        "Away": "Ispe FC",
        "Match Full": "Dagon Star United FC v Ispe FC"
    },
    {
        "Sport": "Calcio",
        "Championship": "Italia - Serie A",
        "Home": "Genoa",
        "Away": "Inter",
        "Match Full": "Genoa v Inter"
    }]

for x in pre:
    for i in live:
        if x['Match Full'] != i['Match Full']:
            print(x['Match Full'])`

我想得到的只是“直播”词典中缺少的赛前信息,在这种情况下,它应该只打印“帕尔马对佛罗伦萨”,因为字典中没有

任何解决方案都将不胜感激,提前感谢。

打印(x[“匹配完整”])

缺少比赛

2 回复 | 直到 1 年前

Suramuthu R 1 年前

#Create a list of value of 'Match Full' from live
live_lst = [x["Match Full"] for x in live] 

for x in pre:
    if x["Match Full"] not in live_lst:
        print(x["Match Full"])

#Output : Parma v Fiorentina

folen gateis 1 年前

这应该行了

def get_set(matches):
    return set([match_['Match Full'] for match_ in matches])
    
pre_set= get_set(pre)
live_set = get_set(live)
print(pre_set-live_set) # {'Parma v Fiorentina'}