如何删除单引号，并在转换为to_json后将括号添加到pandas数据框中？

Question

我已成功将pandas数据帧转换为json字符串，同时在开头添加字符串'import_data'，如下所示：

a = {"import_data" : df.to_json(orient='records')}

返回：

{'import_data': '[{"\ufeffemail_addresses":"test@test.com","first_name":"test","last_name":"test","lists":1234567890},{"\ufeffemail_addresses":"Jane@Doe.com","first_name":"Jane","last_name":"Doe","lists":1234567890},{"\ufeffemail_addresses":"Pradeep@Patel.com","first_name":"Pradeep","last_name":"Patel","lists":1234567890}]'}

但是pandas 'to_json'，并没有完全转换我需要传递给API的数据帧。

字符串需要，必须如下所示：

update_contact = '{"import_data": [{"email_addresses": ["test@test.com"],"first_name": "test","last_name": "test"},{"email_addresses": ["Jane@Doe.com"],"first_name": "Jane","last_name": "Doe"}, {"email_addresses": ["Pradeep@Patel.com"],"first_name": "Pradeep","last_name": "Patel"}],"lists": ["1234567890"]}'

to_json在第一个括号周围添加单引号，由于某种原因添加反斜杠，字母'u'和字符串\ufeffat email_address的开头。不知道如何放弃所有这些。

编辑：

这就是我只能将数据传递到API的方法：

headers = {

        'Authorization': 'Bearer x',
        'X-Originating-Ip': 'x',
        'Content-Type': 'application/json',

        }


update_contact = '{"import_data": [{"email_addresses": ["test@test.com"],"first_name": "test","last_name": "test"},{"email_addresses": ["Jane@Doe.com"],"first_name": "Jane","last_name": "Doe"}, {"email_addresses": ["Pradeep@Patel.com"],"first_name": "Pradeep","last_name": "Patel"}],"lists": ["1072830671"]}'

r_3 = requests.post('urlapi_key=x', headers=headers ,data = update_contact)