从只有文本的文件创建嵌套字典

Question

我有一个 csv 文件，其中包含标题和值行：

site,access_key,secret_access_key
sa1,something,something 
na1,something,something 

等等。我希望字典看起来像

site_dict = {"sa1" :{"access_key" : "something", "secret_access_key" : "something"}, "na1" :{"access_key" : "something", "secret_access_key" : "something"}}

我尝试了这里的建议：How to create a nested dictionary from a csv file with N rows in Python，但它处理的是数值，我无法将其更改为字符串值。任何帮助，将不胜感激。如果您提出建议或提供答案，请将其作为答案，以便我可以适当地标记它。编辑：我通过添加引号将 sa1 和 na1 更改为键。

Answer 1

您可以使用csv 模块读取和预读第一行以获取键名：

# create data
with open("f.txt","w") as f:
    f.write("""site,access_key,secret_access_key
sa1,something111,something111 
na1,something222,something222""")

import csv

result = {}
with open("f.txt") as f:
    # get the keynames from the 1st line
    fields = next(f).strip().split(",")
    reader = csv.reader(f)
    # process all other lines
    for line in reader:
        # outer key is 1st value
        # inner key/values are from the header line and rest of line data
        result[line[0]] = dict(zip(fields[1:],line[1:]))

print(result)

输出：

{'sa1': {'access_key': 'something111', 'secret_access_key': 'something111'}, 
 'na1': {'access_key': 'something222', 'secret_access_key': 'something222'}}

查找：csv