python - 如何读取API输出的多个词典列表？

Question

我有一个应用程序以这种确切的格式返回多个字典列表:

 [{'key1':'value1','key2':'value2'}][{'key3':'value3','key4':'value4'}]

如何按原样读取整个字典列表并将这些列表分开以便在将来的代码中进行进一步分析？

我尝试将数据读入一个变量:

  a = [{'key1':'value1','key2':'value2'}][{'key3':'value3','key4':'value4'}]

但出现错误:

TypeError: list indices must be integers or slices, not dict

Answer 1

处理您创建的字符串的一种粗略方法是执行string.split和string.replace，如下所示。

import ast

a = "[{'key1':'value1','key2':'value2'}][{'key3':'value3','key4':'value4'}]"
li = []
#split of ']['
for elem in a.split(']['):
    #Replace elements in dictionary to make the string json compliant
    d = elem.strip('[]')
    #Use literal_eval to convert to dictionary
    dct = ast.literal_eval(d)
    #Append parsed dictionary to a list
    li.append(dct)

print(li)
#[{'key1': 'value1', 'key2': 'value2'}, {'key3': 'value3', 'key4': 'value4'}]