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JSON格式在附加文件时添加\个字符,但不在输出中添加到字符串

flickr append formatting json python

M. Stag · 技术社区 · 7 年前

我使用以下函数获取 json 来自flickr API 。返回的字符串是格式正确的JSON块:

def get_photo_data(photo_id):
    para = {}
    para["photo_id"] = photo_id
    para["method"] = "flickr.photos.getInfo"
    para["format"] = "json"
    para["api_key"] = FLICKR_KEY
    request_data = params_unique_combination("https://api.flickr.com/services/rest/", para)

    if request_data in CACHE_DICTION:
        return CACHE_DICTION[request_data]
    else:
        response = requests.get("https://api.flickr.com/services/rest/", para)
        CACHE_DICTION[request_data] = response.text[14:-1]
        cache_file = open(CACHE_FNAME, 'w')
        cache_file.write(json.dumps(CACHE_DICTION))
        cache_file.close()
        return response.text[14:-1]

"https://api.flickr.com/services/rest/format-json_method-flickr.photos.getInfo_photo_id-34869402493": "{\"photo\":{\"id\":\"34869402493\",\"secret\":\"56fcf0342c\",\"server\":\"4057\",\"farm\":5,\"dateuploaded\":\"1499030213\",\"isfavorite\":0,\"license\":\"0\",\"safety_level\":\"0\",\"rotation\":0,\"originalsecret\":\"c4d1d316ed\",\"originalformat\":\"jpg\",\"owner\":{\"nsid\":\"150544082@N05\",\"username\":\"ankitrana_\",\"realname\":\"Ankit Rana\",\"location\":\"Cincinnati, USA\",\"iconserver\":\"4236\",\"iconfarm\":5,\"path_alias\":\"ankitrana_\"},\"title\":{\"_content\":\"7\"},\"description\":{\"_content\":\"\"},\"visibility\":{\"ispublic\":1,\"isfriend\":0,\"isfamily\":0},\"dates\":{\"posted\":\"1499030213\",\"taken\":\"2017-06-19 13:43:38\",\"takengranularity\":\"0\",\"takenunknown\":\"0\",\"lastupdate\":\"1499041020\"},\"views\":\"41\",\"editability\":{\"cancomment\":0,\"canaddmeta\":0},\"publiceditability\":{\"cancomment\":1,\"canaddmeta\":0},\"usage\":{\"candownload\":1,\"canblog\":0,\"canprint\":0,\"canshare\":1},\"comments\":{\"_content\":\"0\"},\"notes\":{\"note\":[]},\"people\":{\"haspeople\":0},\"tags\":{\"tag\":[{\"id\":\"150538742-34869402493-5630\",\"author\":\"150544082@N05\",\"authorname\":\"ankitrana_\",\"raw\":\"cincinnati\",\"_content\":\"cincinnati\",\"machine_tag\":0},{\"id\":\"150538742-34869402493-226\",\"author\":\"150544082@N05\",\"authorname\":\"ankitrana_\",\"raw\":\"ohio\",\"_content\":\"ohio\",\"machine_tag\":false}, ... etc., etc.}

如果没有这些附加信息,我如何将JSON存储到现有文件中 \

3 回复 | 直到 7 年前

ewwink 7 年前

your_string.decode('string_escape') 取消景观 \" 到 "

更新:

您的字符串已转义,因为 json.dumps() ,它将对象转换为字符串,稍后您可以使用 json.loads() ,结果是不可回避的。

您可以使用 str()

cache_file.write(str(CACHE_DICTION))
# {'myparam' :'"162000","photo":...'

但是它用单引号保存到文件中的问题是,它不是有效的json,并且与

我的建议是,保留上述代码,除非您想将其存储到文件中 CACHE_FNAME.json

cache_file = open(CACHE_FNAME, 'w')
cache_file.write(response.text)
cache_file.close()
# {"photos":{"page":1,"pages":6478,..}

O Grant 7 年前

您可以尝试在python中用str.replace函数替换“\”

在下一行后添加代码

cache\u file=打开(cache\u FNAME,“w”)

json_item = str(json.dumps(CACHE_DICTION))
json_item.replace("\", "")

到

cache\u file.write(json\u项)

realpac 7 年前

\ 带有空格。我在使用JSON时做了同样的事情。

json_new = json.replace('\\', '')