从引号内的 JSON 字符串中删除 \r\n 以获得多行

Question

我有一个包含多个顺序 JSON 对象的大文本文件。据我所知，单独解释/加载 JSON 对象的最佳方法是从文本文件中获取它们并将它们放在单独的行中，以便我可以逐行遍历它们。

不幸的是，我无法让 python 将它们分成单独的行，而不会破坏 JSON 结构到难以辨认的程度。此外，这些文件非常大，并且包含大量信息。请让我知道最好的方法是 a) 将不同的 JSON 对象字符串放到 python 中的不同行上，或者 b) 单独解析信息的更好方法。

文件中的文本如下所示：

"{\"time\":\"Fri Aug 09 18:55:37 +0000 2019\", \"id\":720,\"text\":\"I'd really like to find a good solution to this problem.\",\"source\":\"href=\\\"http:\\/\\/stackoverflow.com\\\",\"lang\":\"en\",\"timestamp_ms\":\"1565376937344\"}\r\n""{\"time\":\"Sat Aug 10 22:16:00 +0000 2019\", \"id\":721,\"text\":\"And I would appreciate your help!\",\"source\":\"href=\\\"http:\\/\\/stackoverflow.com\\\",\"lang\":\"en\",\"timestamp_ms\":\"156534564531\"}\r\n""{\"time\":\"Sun Aug 09 18:55:37 +0000 2019\", \"id\":720,\"text\":\"Imagine additional text repeating below.\",\"source\":\"href=\\\"http:\\/\\/stackoverflow.com\\\",\"lang\":\"en\",\"timestamp_ms\":\"1565376937344\"}\r\n"

如果将上述文本分配给python对象并要求python打印它，python会返回我想看到的，即：

{"time":"Fri Aug 09 18:55:37 +0000 2019", "id":720,"text":"I'd really like to find a good solution to this problem.","source":"href=\"http:\/\/stackoverflow.com\","lang":"en","timestamp_ms":"1565376937344"}

{"time":"Sat Aug 10 22:16:00 +0000 2019", "id":721,"text":"And I would appreciate your help!","source":"href=\"http:\/\/stackoverflow.com\","lang":"en","timestamp_ms":"156534564531"}

{"time":"Sun Aug 09 18:55:37 +0000 2019", "id":720,"text":"Imagine additional text repeating below.","source":"href=\"http:\/\/stackoverflow.com\","lang":"en","timestamp_ms":"1565376937344"}

但是，如果我将文件读取到 python 对象并打印该对象，我会得到原始文本。我试过f.read()、readline()、readlines()、splitlines()（这给了我一堆额外的\\s），我试过用splitstring()分割字符串。我很茫然，我承认我对编码还很陌生，从来没有真正坐下来学习基础知识。

您可以给我的任何帮助来获取上述文本并最终将它们翻译成单独的 JSON 对象并阅读，例如，每个文本都会很棒。我的最终目标是能够从各个 json 对象中调用字典键，如下所示：

for line in f:
    data = json.loads(line)
    print(data[‘text’])

并得到以下列表

"I'd really like to find a good solution to this problem."
"And I would appreciate your help!"
"Imagine additional text repeating below."

Answer 1

如果我对问题的理解正确，使用 literal_eval() 可能会满足您的需要：

from ast import literal_eval

with open('json_strings.txt') as file:
    for line in file:
        for line in literal_eval(line).splitlines():
            print(line)

样本输出：

{"time":"Fri Aug 09 18:55:37 +0000 2019", "id":720,"text":"I'd really like to find a good solution to this problem.","source":"href=\"http:\/\/stackoverflow.com\","lang":"en","timestamp_ms":"1565376937344"}
{"time":"Sat Aug 10 22:16:00 +0000 2019", "id":721,"text":"And I would appreciate your help!","source":"href=\"http:\/\/stackoverflow.com\","lang":"en","timestamp_ms":"156534564531"}
{"time":"Sun Aug 09 18:55:37 +0000 2019", "id":720,"text":"Imagine additional text repeating below.","source":"href=\"http:\/\/stackoverflow.com\","lang":"en","timestamp_ms":"1565376937344"}