sample code:
>>> import json
>>> json_string = json.dumps(\"ברי צקלה\")
>>> print json_string
\"\\u05d1\\u05e8\\u05d9 \\u05e6\\u05
>>>import json
>>>json_string = json.dumps("ברי צקלה")
>>>json_string.encode('ascii').decode('unicode-escape')
'"ברי צקלה"'
>>>s = '漢 χαν хан'
>>>print('unicode: ' + s.encode('unicode-escape').decode('utf-8'))
unicode: \u6f22 \u03c7\u03b1\u03bd \u0445\u0430\u043d
>>>u = s.encode('unicode-escape').decode('utf-8')
>>>print('original: ' + u.encode("utf-8").decode('unicode-escape'))
original: 漢 χαν хан
original resource:https://blog.csdn.net/chuatony/article/details/72628868