我有来自Instagram API的以下JSON对象，它可以有n个帖子（取决于提供的计数参数）。
{
"pagination": {
"next_url": "https:\/\/api.instagram.com\/v1\/users\/3\/media\/recent?access_token=184046392.f59def8.c5726b469ad2462f85c7cea5f72083c0&max_id=205140190233104928_3",
"next_max_id": "205140190233104928_3"
},
"meta": {
"code": 200
},
"data": [{
"attribution": null,
"tags": [],
"type": "image",
"location": {
"latitude": 37.798594362,
"name": "Presidio Bowling Center",
"longitude": -122.459878922,
"id": 27052
},
"comments": {
"count": 132,
"data": [{
"created_time": "1342734265",
"text": "Distinguishing!",
"from": {
"username": "naiicamilos",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_53690312_75sq_1336573463.jpg",
"id": "53690312",
"full_name": "Naii Camilos"
},
"id": "239194812924826175"
}, {
"created_time": "1342737428",
"text": "@kevin in Spanish Presidio means Jail",
"from": {
"username": "jm0426",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_25881992_75sq_1342156673.jpg",
"id": "25881992",
"full_name": "Juan Mayen"
},
"id": "239221343768285211"
}, {
"created_time": "1342768120",
"text": "Good imagination",
"from": {
"username": "kidloca",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_193133903_75sq_1342032241.jpg",
"id": "193133903",
"full_name": "Khaleda Noon"
},
"id": "239478811731694145"
}, {
"created_time": "1342775967",
"text": "Cwl!",
"from": {
"username": "awesomeath",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_179252164_75sq_1339745821.jpg",
"id": "179252164",
"full_name": "awesomeath"
},
"id": "239544638740894674"
}, {
"created_time": "1342796153",
"text": "\u597d\u7f8e\u263a",
"from": {
"username": "hidelau",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_47295330_75sq_1342763977.jpg",
"id": "47295330",
"full_name": "Hide Lau"
},
"id": "239713963951001995"
}, {
"created_time": "1343018007",
"text": "#mindfreak",
"from": {
"username": "info2021",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/anonymousUser.jpg",
"id": "27664191",
"full_name": "info2021"
},
"id": "241575017119224582"
}, {
"created_time": "1343068374",
"text": "@kevin please share and promote my last pic. This will be the new hype as instagram",
"from": {
"username": "thansy_mansy",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_189019343_75sq_1342951587.jpg",
"id": "189019343",
"full_name": "thansy_mansy"
},
"id": "241997523093295303"
}, {
"created_time": "1343068382",
"text": "@kevin :P",
"from": {
"username": "thansy_mansy",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_189019343_75sq_1342951587.jpg",
"id": "189019343",
"full_name": "thansy_mansy"
},
"id": "241997589589790922"
}]
},
"filter": "Rise",
"created_time": "1342676212",
"link": "http:\/\/instagr.am\/p\/NQD4KAABKF\/",
"likes": {
"count": 4810,
"data": [{
"username": "caitlyn_hammonds",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/anonymousUser.jpg",
"id": "198322184",
"full_name": "caitlyn_hammonds"
}, {
"username": "sophiafrancis",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_43092892_75sq_1340548333.jpg",
"id": "43092892",
"full_name": "Sophiaaa."
}, {
"username": "amna7861",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_175807260_75sq_1343135903.jpg",
"id": "175807260",
"full_name": "Amna Haroon"
}, {
"username": "yaya0318",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_74056_75sq_1287001004.jpg",
"id": "74056",
"full_name": "Mao Yaya"
}, {
"username": "jay_damage",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_197465040_75sq_1342932411.jpg",
"id": "197465040",
"full_name": "jay_damage"
}, {
"username": "reves",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_671833_75sq_1335966794.jpg",
"id": "671833",
"full_name": "Fernando D. Ramirez"
}, {
"username": "lizray1",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_198450407_75sq_1343144120.jpg",
"id": "198450407",
"full_name": "lizray1"
}, {
"username": "alivewtheglory",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_37907416_75sq_1341561441.jpg",
"id": "37907416",
"full_name": "Marilynn C"
}, {
"username": "mnforever55",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_29255977_75sq_1334833008.jpg",
"id": "29255977",
"full_name": "mnforever55"
}]
},
"images": {
"low_resolution": {
"url": "http:\/\/distilleryimage9.s3.amazonaws.com\/beb7f896d16311e19fe21231380f3636_6.jpg",
"width": 306,
"height": 306
},
"thumbnail": {
"url": "http:\/\/distilleryimage9.s3.amazonaws.com\/beb7f896d16311e19fe21231380f3636_5.jpg",
"width": 150,
"height": 150
},
"standard_resolution": {
"url": "http:\/\/distilleryimage9.s3.amazonaws.com\/beb7f896d16311e19fe21231380f3636_7.jpg",
"width": 612,
"height": 612
}
},
"caption": {
"created_time": "1342676255",
"text": "Happy birthday @amy !",
"from": {
"username": "kevin",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_3_75sq_1325536697.jpg",
"id": "3",
"full_name": "Kevin Systrom"
},
"id": "238708186813567655"
},
"user_has_liked": false,
"id": "238707833418289797_3",
"user": {
"username": "kevin",
"website": "",
"bio": "CEO & Co-founder of Instagram",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_3_75sq_1325536697.jpg",
"full_name": "Kevin Systrom",
"id": "3"
}
}, {
"attribution": null,
"tags": [],
"type": "image",
"location": {
"latitude": 38.503100608,
"name": "Goose & Gander",
"longitude": -122.468387538,
"id": 12059278
},
"comments": {
"count": 85,
"data": [{
"created_time": "1342555499",
"text": "Cheers !!! \ud83d\ude18\ud83d\ude18",
"from": {
"username": "kattiab",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_1345073_75sq_1340495505.jpg",
"id": "1345073",
"full_name": "kattia b"
},
"id": "237695212468572732"
}, {
"created_time": "1342558279",
"text": "happy birthday instagram!",
"from": {
"username": "alanasayshi",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_4235095_75sq_1341960681.jpg",
"id": "4235095",
"full_name": "Alana Boy\u00e9r"
},
"id": "237718535382504383"
}, {
"created_time": "1342567977",
"text": "Happy Natal Day Instagram!",
"from": {
"username": "cynrtst",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_12493918_75sq_1341538462.jpg",
"id": "12493918",
"full_name": "Cynthia L"
},
"id": "237799888639758668"
}, {
"created_time": "1342568896",
"text": "Happy Birthday \ud83c\udf89\ud83c\udf89\ud83c\udf89 was it a long labour \ud83d\ude02\ud83d\ude02\ud83d\ude02",
"from": {
"username": "relzie",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_15718874_75sq_1332290975.jpg",
"id": "15718874",
"full_name": "Relz"
},
"id": "237807595966960050"
}, {
"created_time": "1342579289",
"text": "Cheers @kevin and Happy Birthday #instagram thank you so much Kevin for creating instagram it's truly got me back out there taking more photos and falling in love with photography all over again...",
"from": {
"username": "bpphotographs",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_12149171_75sq_1339457436.jpg",
"id": "12149171",
"full_name": "bpphotographs"
},
"id": "237894779172557723"
}, {
"created_time": "1342652660",
"text": "@suz_h",
"from": {
"username": "ianyorke",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_1041088_75sq_1339844137.jpg",
"id": "1041088",
"full_name": "Ian Yorke"
},
"id": "238510264889118973"
}, {
"created_time": "1342667574",
"text": "Love your app\ud83d\udc97\ud83d\udc97\ud83d\udc97\ud83d\udc97\ud83d\udc97",
"from": {
"username": "gothangel1997",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_186799125_75sq_1342668825.jpg",
"id": "186799125",
"full_name": "Angel Mercado"
},
"id": "238635368570687940"
}, {
"created_time": "1342843274",
"text": "\ud83d\ude09\u2764",
"from": {
"username": "andescu",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_145554839_75sq_1337641309.jpg",
"id": "145554839",
"full_name": "andescu"
},
"id": "240109245637333685"
}]
},
"filter": "Sierra",
"created_time": "1342332400",
"link": "http:\/\/instagr.am\/p\/NF0G6bABA2\/",
"likes": {
"count": 3282,
"data": [{
"username": "caysondesigns",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_23464609_75sq_1329177054.jpg",
"id": "23464609",
"full_name": "Jasmine at Cayson Designs"
}, {
"username": "m_azooz16",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_198179404_75sq_1343096096.jpg",
"id": "198179404",
"full_name": "m_azooz16"
}, {
"username": "shulinghuang",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_144887495_75sq_1342460246.jpg",
"id": "144887495",
"full_name": "H\u3002"
}, {
"username": "caitlyn_hammonds",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/anonymousUser.jpg",
"id": "198322184",
"full_name": "caitlyn_hammonds"
}, {
"username": "sophiafrancis",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_43092892_75sq_1340548333.jpg",
"id": "43092892",
"full_name": "Sophiaaa."
}, {
"username": "beatle1234",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/anonymousUser.jpg",
"id": "197988834",
"full_name": "beatle1234"
}, {
"username": "yaya0318",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_74056_75sq_1287001004.jpg",
"id": "74056",
"full_name": "Mao Yaya"
}, {
"username": "lizray1",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_198450407_75sq_1343144120.jpg",
"id": "198450407",
"full_name": "lizray1"
}, {
"username": "rawr1234321",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_198492630_75sq_1343151765.jpg",
"id": "198492630",
"full_name": "rawr1234321"
}]
},
"images": {
"low_resolution": {
"url": "http:\/\/distilleryimage6.s3.amazonaws.com\/3ec59e18ce4311e1b8031231380702ee_6.jpg",
"width": 306,
"height": 306
},
"thumbnail": {
"url": "http:\/\/distilleryimage6.s3.amazonaws.com\/3ec59e18ce4311e1b8031231380702ee_5.jpg",
"width": 150,
"height": 150
},
"standard_resolution": {
"url": "http:\/\/distilleryimage6.s3.amazonaws.com\/3ec59e18ce4311e1b8031231380702ee_7.jpg",
"width": 612,
"height": 612
}
},
"caption": {
"created_time": "1342332465",
"text": "Mellivora capensis - eagle rare, peat, honey, lemon, pineapple, black cardamom, chili, coconut foam",
"from": {
"username": "kevin",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_3_75sq_1325536697.jpg",
"id": "3",
"full_name": "Kevin Systrom"
},
"id": "235824269324456712"
},
"user_has_liked": false,
"id": "235823728972271670_3",
"user": {
"username": "kevin",
"website": "",
"bio": "CEO & Co-founder of Instagram",
"profile_picture": "http:\/\/images.instagram.com\/profiles\/profile_3_75sq_1325536697.jpg",
"full_name": "Kevin Systrom",
"id": "3"
}
}, .....
所以我希望单独迭代每个帖子并提取tags，id和image urls。我遇到了一些麻烦，（因为我是一名PHP开发人员，发现很难将Python作为初学者使用）。
这是我用来迭代每个帖子并处理提供的属性的代码。我不想将它们存储在列表或词典中。只想搜索标签。
（这只是一个尝试过的代码，因为我无法找到应该使用的循环）
info= simplejson.load(info)
print type(info['data']) # I get it as a list
for k, v in info['data']:
print v
我可以使用带有foreach的
foreach($info->data as $i) {
$tags = $i->tags();
$id = $i->id();
}
答案 0 :(得分：0)
如果info['data']是一个列表，您应该可以像这样迭代它：
for post in info['data']:
tags = post['tags']
id = post['id']
image_urls = [] # An empty list -- we'll fill it below
for img_type in ['low_resolution', 'thumbnail', 'standard_resolution']:
image_urls.append(post['images'][img_type]['url'])
# Now image_urls has all the image urls in it
我认为与PHP完全不同的部分是，在JSON结构中密钥为"tags"的情况下，您必须在Python中使用字符串"tags"，而您将使用文字{{ PHP中的1}}。