python - 如何从文本文件导入包含字典的数组？

Question

我有一个文本文件，里面有 cookie。它看起来像这样:

[{"key":"value", "key":"value", "key":"value"},
 {"key":"value", "key":"value", "key":"value"},
 {"key":"value", "key":"value", "key":"value"},
 {"key":"value", "key":"value", "key":"value"}]

我将它存储到一个字符串变量中，如下所示:

with open ('example.txt', "r") as myfile:
    cookie = myfile.read().replace('\n', '')

我无法将它转换成一个数组，每个元素都作为字典。我试过 cookie2 = cookie.split(',') 和 cookie2 = cookie.split('},{') 但你遇到了一个明显的问题:它破坏了字典.

Answer 1

看起来像 json 数据，你可以使用 json模块来解析它。像-

import json
with open('<filename>') as f:
    data = json.load(f)

演示 -

文件-

[{"key1":"value", "key2":"value", "key3":"value"},{"key1":"value", 
"key2":"value", "key3":"value"},{"key1":"value", "key2":"value", 
"key3":"value"},{"key1":"value", "key2":"value", "key3":"value"}]

代码-

>>> import json
>>> with open('a.txt','r') as f:
...     pprint.pprint(json.load(f))
...
[{'key1': 'value', 'key2': 'value', 'key3': 'value'},
 {'key1': 'value', 'key2': 'value', 'key3': 'value'},
 {'key1': 'value', 'key2': 'value', 'key3': 'value'},
 {'key1': 'value', 'key2': 'value', 'key3': 'value'}]