Question

import csv

def partytoyear():
    party_in_power = {}
    with open("presidents.txt") as f:
        reader = csv.reader(f)
        for row in reader:
            party = row[1]
            for year in row[2:]:
                party_in_power[year] = party

    print(party_in_power)
    return party_in_power



partytoyear()



def statistics():

    with open("BLS_private.csv") as f:
        statistics = {}
        reader = csv.DictReader(f)
        for row in reader:
            statistics = row
        print(statistics)   
        return statistics


statistics()

这两个函数返回两个字典。

以下是第一本词典的示例：

'Democrat', '1981': 'Republican', '1982': 'Republican', '1983'

第二本词典的样本：

'2012', '110470', '110724', '110871', '110956', '111072', '111135', '111298', '111432', '111560', '111744'

第一本词典将年份和政党联系在一起。下一本字典将年份与工作统计相关联。

我需要将这两个字典结合起来，这样我才能在字典中将聚会与工作统计信息结合在一起。

我希望字典是这样的：

'Democrat, '2012','110470', '110724', '110871', '110956', '111072', '111135', '111298', '111432', '111560', '111744'

我将如何去做？我已经看过update（）的语法，但这对我的程序不起作用

Answer 1

在该庄园中，您无法在python中使用字典，这在语法上是错误的，但是您可以将每个值都作为一个集合（例如列表）。这是一种使用字典查询来完成的理解：

first_dict = {'Democrat': '1981': 'Republican': '1982': 'Republican': '1983', ...}
second_dict = {'2012': ['110470', '110724', '110871', '110956', '111072', '111135', '111298', '111432', '111560', '111744'], ...}

result = {party: [year, *second_dict[year] for party, year in first_dict.items()}

伪结果字典结构：

{'Party Name': [year, stats, ...], ...}

如何使用python合并两个字典

1 个答案: