title: Check whether the JSON (object property exists) & print it as unicode decoded
body: <p>I get the following data from the <a href="http://instagram.com/developer/endpoints/users/">Instagram API</a>, I m trying to get the text <code>property</code> from the <code>caption</code> using the following code: </p>
  
  <pre><code>data = simplejson.load(info) # info is retrieved using the urllib2 
      for post in data['data']: 
          if post['caption'] is not "null":
              try:
                  post['caption']['text']
              except NameError:
                  post['caption']['text'] = 0
              if post['caption']['text'] is not 0:
                  print post['caption']['text']
  </code></pre>
  
  <p>But I keep getting the <code>TypeError: 'NoneType' object has no attribute '__getitem__'</code> error + <code>UnicodeEncodeError: 'charmap' codec can't encode characters in position 0-5: cha
      racter maps to &lt;undefined&gt;</code> error while printing the unicode strings</p>
  
  <p>Here is the JSON data that is retrieved and stored in <code>info</code></p>
  
  <pre><code>{
     "pagination":{
        "next_url":"https:\/\/api.instagram.com\/v1\/users\/self\/feed?access_token=184046392.f59def8.c5726b469ad2462f85c7cea5f72083c0&amp;count=3&amp;max_id=247821697921944007_6064449",
        "next_max_id":"247821697921944007_6064449"
     },
     "meta":{
        "code":200
     },
     "data":[
        {
           "attribution":null,
           "tags":[
              "usausausa",
              "olympics"
           ],
           "type":"image",
           "location":{
              "latitude":37.785929,
              "name":"Aquatech Swim School",
              "longitude":-122.278718,
              "id":16343815
           },
           "comments":{
              "count":0,
              "data":[
  
              ]
           },
           "filter":"Valencia",
           "created_time":"1343765260",
           "link":"http:\/\/instagr.am\/p\/NwhEktJvEp\/",
           "likes":{
              "count":0,
              "data":[
  
              ]
           },
           "images":{
              "low_resolution":{
                 "url":"http:\/\/distilleryimage1.s3.amazonaws.com\/61d9cbeedb4b11e1b8e822000a1e8b8e_6.jpg",
                 "width":306,
                 "height":306
              },
              "thumbnail":{
                 "url":"http:\/\/distilleryimage1.s3.amazonaws.com\/61d9cbeedb4b11e1b8e822000a1e8b8e_5.jpg",
                 "width":150,
                 "height":150
              },
              "standard_resolution":{
                 "url":"http:\/\/distilleryimage1.s3.amazonaws.com\/61d9cbeedb4b11e1b8e822000a1e8b8e_7.jpg",
                 "width":612,
                 "height":612
              }
           },
           "caption":{
              "created_time":"1343765325",
              "text":"Part of my job to watch swimming. #olympics #USAUSAUSA",
              "from":{
                 "username":"kissinkatkelly",
                 "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_4672491_75sq_1341713095.jpg",
                 "id":"4672491",
                 "full_name":"kissinkatkelly"
              },
              "id":"247843973390332239"
           },
           "user_has_liked":false,
           "id":"247843429330383145_4672491",
           "user":{
              "username":"kissinkatkelly",
              "website":"",
              "bio":"I sing the body electric\r\n\r\nBay Area, CA",
              "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_4672491_75sq_1341713095.jpg",
              "full_name":"kissinkatkelly",
              "id":"4672491"
           }
        },
        {
           "attribution":null,
           "tags":[
  
           ],
           "type":"image",
           "location":{
              "latitude":36.020832061,
              "longitude":-121.548835754
           },
           "comments":{
              "count":4,
              "data":[
                 {
                    "created_time":"1343763343",
                    "text":"I wanna cut your mustache off. \ue313\ue313\ue313\ue004",
                    "from":{
                       "username":"glorias_noodles",
                       "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_24432017_75sq_1343633079.jpg",
                       "id":"24432017",
                       "full_name":"\ue340MeGusta Gloria\ue340"
                    },
                    "id":"247827343962686703"
                 },
                 {
                    "created_time":"1343763844",
                    "text":"Ahaha^",
                    "from":{
                       "username":"chloe_carter",
                       "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_44766575_75sq_1343509145.jpg",
                       "id":"44766575",
                       "full_name":"Chloe Carter"
                    },
                    "id":"247831551235474746"
                 },
                 {
                    "created_time":"1343763958",
                    "text":"Amazingg thoo",
                    "from":{
                       "username":"saulyp",
                       "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_18051263_75sq_1335648741.jpg",
                       "id":"18051263",
                       "full_name":"Saul Perez"
                    },
                    "id":"247832506790200642"
                 },
                 {
                    "created_time":"1343764298",
                    "text":"@popesaintvictor where is that? :o",
                    "from":{
                       "username":"youknow_jameson",
                       "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_194001394_75sq_1343613135.jpg",
                       "id":"194001394",
                       "full_name":"Jameson Medina"
                    },
                    "id":"247835358103225704"
                 }
              ]
           },
           "filter":"Normal",
           "created_time":"1343763202",
           "link":"http:\/\/instagr.am\/p\/NwdJRpBkfX\/",
           "likes":{
              "count":611,
              "data":[
                 {
                    "username":"jakyvedder",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_18148021_75sq_1336938690.jpg",
                    "id":"18148021",
                    "full_name":"Janycken"
                 },
                 {
                    "username":"nadjasinbruker",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_174576513_75sq_1343582260.jpg",
                    "id":"174576513",
                    "full_name":"Nadja"
                 },
                 {
                    "username":"vivi11",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_1193390_75sq_1338169730.jpg",
                    "id":"1193390",
                    "full_name":"Viviana Rodriguez"
                 },
                 {
                    "username":"me_4_eva",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_181498114_75sq_1343506811.jpg",
                    "id":"181498114",
                    "full_name":"Kelly"
                 },
                 {
                    "username":"roxczajkowski",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_9367244_75sq_1343696914.jpg",
                    "id":"9367244",
                    "full_name":"Czajkowski \u041a\u043e\u0440\u0448\u0443\u043d\u043e\u0432\u0430"
                 },
                 {
                    "username":"arsi1989",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_201586134_75sq_1343761866.jpg",
                    "id":"201586134",
                    "full_name":"Arsalan MemOn"
                 },
                 {
                    "username":"puppyluva",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_201579504_75sq_1343760137.jpg",
                    "id":"201579504",
                    "full_name":"puppyluva"
                 },
                 {
                    "username":"paulinamurr",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_49364097_75sq_1343428499.jpg",
                    "id":"49364097",
                    "full_name":"Paulina Murray"
                 },
                 {
                    "username":"_mcquadeface_",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_20679753_75sq_1327617901.jpg",
                    "id":"20679753",
                    "full_name":"Emily McQuade"
                 }
              ]
           },
           "images":{
              "low_resolution":{
                 "url":"http:\/\/distilleryimage11.s3.amazonaws.com\/96cd5b90db4611e1827612313814176c_6.jpg",
                 "width":306,
                 "height":306
              },
              "thumbnail":{
                 "url":"http:\/\/distilleryimage11.s3.amazonaws.com\/96cd5b90db4611e1827612313814176c_5.jpg",
                 "width":150,
                 "height":150
              },
              "standard_resolution":{
                 "url":"http:\/\/distilleryimage11.s3.amazonaws.com\/96cd5b90db4611e1827612313814176c_7.jpg",
                 "width":612,
                 "height":612
              }
           },
           "caption":null,
           "user_has_liked":false,
           "id":"247826160271378391_605400",
           "user":{
              "username":"popesaintvictor",
              "website":"http:\/\/popesaintvictor.com",
              "bio":"artist, friend, and brand designer for blood:water mission in nashville, tennessee. \r\n\r\nhusband to @ohsoamy\r\n\r\nbe inspired. be awesome.\r\n",
              "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_605400_75sq_1342893414.jpg",
              "full_name":"pope saint victor",
              "id":"605400"
           }
        },
        {
           "attribution":null,
           "tags":[
  
           ],
           "type":"image",
           "location":{
              "latitude":40.738834381,
              "longitude":-73.994163513
           },
           "comments":{
              "count":6,
              "data":[
                 {
                    "created_time":"1343762733",
                    "text":"Nice :)",
                    "from":{
                       "username":"belieberpernille99",
                       "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_186196238_75sq_1341347304.jpg",
                       "id":"186196238",
                       "full_name":"official belieber"
                    },
                    "id":"247822232418879860"
                 },
                 {
                    "created_time":"1343762748",
                    "text":"Those pants \ud83d\ude0d",
                    "from":{
                       "username":"morganmarzulli",
                       "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_29155556_75sq_1337653621.jpg",
                       "id":"29155556",
                       "full_name":"morganmarzulli"
                    },
                    "id":"247822351461615990"
                 },
                 {
                    "created_time":"1343762777",
                    "text":"That outfit is to die for. I love her pants! They're so fun. \ud83d\udc4d",
                    "from":{
                       "username":"ninavnegron",
                       "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_18421926_75sq_1343356820.jpg",
                       "id":"18421926",
                       "full_name":"Nina V"
                    },
                    "id":"247822600452278654"
                 },
                 {
                    "created_time":"1343762782",
                    "text":"YEAH THEIR COOL",
                    "from":{
                       "username":"belieberpernille99",
                       "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_186196238_75sq_1341347304.jpg",
                       "id":"186196238",
                       "full_name":"official belieber"
                    },
                    "id":"247822639375419775"
                 },
                 {
                    "created_time":"1343762782",
                    "text":"Another day another shoot! Look out for me and my chicest staff on @racked!",
                    "from":{
                       "username":"rebeccaminkoff",
                       "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_6064449_75sq_1332274636.jpg",
                       "id":"6064449",
                       "full_name":"Rebecca Minkoff"
                    },
                    "id":"247822641497737600"
                 },
                 {
                    "created_time":"1343764430",
                    "text":"Hot mama! Miss you!",
                    "from":{
                       "username":"ashleekoston",
                       "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_12925089_75sq_1340081366.jpg",
                       "id":"12925089",
                       "full_name":"ashleekoston"
                    },
                    "id":"247836463642020446"
                 }
              ]
           },
           "filter":"Walden",
           "created_time":"1343762670",
           "link":"http:\/\/instagr.am\/p\/NwcIVwRYnH\/",
           "likes":{
              "count":528,
              "data":[
                 {
                    "username":"claireyoung48",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_40091175_75sq_1338778945.jpg",
                    "id":"40091175",
                    "full_name":"claireyoung48"
                 },
                 {
                    "username":"l_christine_k",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_14871166_75sq_1341962995.jpg",
                    "id":"14871166",
                    "full_name":"Lauren Kawano"
                 },
                 {
                    "username":"grcdaly",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_41426567_75sq_1335023058.jpg",
                    "id":"41426567",
                    "full_name":"\u24bc\u24c7\u24b6\u24b8\u24ba \u24b9\u24b6\u24c1\u24e8"
                 },
                 {
                    "username":"vanessaalcalaa",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_18115905_75sq_1342828120.jpg",
                    "id":"18115905",
                    "full_name":"Vanessa Alcala"
                 },
                 {
                    "username":"makennalenover",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_6464394_75sq_1343268613.jpg",
                    "id":"6464394",
                    "full_name":"Makenna Lenover"
                 },
                 {
                    "username":"heyitsmaryanne",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_623979_75sq_1340838647.jpg",
                    "id":"623979",
                    "full_name":"Maryanne L"
                 },
                 {
                    "username":"sarabeen",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/anonymousUser.jpg",
                    "id":"6463387",
                    "full_name":"sarabeen"
                 },
                 {
                    "username":"boldincrimson",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_191122242_75sq_1341889110.jpg",
                    "id":"191122242",
                    "full_name":"Pilar Chapa"
                 },
                 {
                    "username":"elizzabethhope",
                    "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_6761399_75sq_1342553102.jpg",
                    "id":"6761399",
                    "full_name":"Lizz\u270c"
                 }
              ]
           },
           "images":{
              "low_resolution":{
                 "url":"http:\/\/distilleryimage7.s3.amazonaws.com\/59bc708edb4511e1b7ea22000a1cbb16_6.jpg",
                 "width":306,
                 "height":306
              },
              "thumbnail":{
                 "url":"http:\/\/distilleryimage7.s3.amazonaws.com\/59bc708edb4511e1b7ea22000a1cbb16_5.jpg",
                 "width":150,
                 "height":150
              },
              "standard_resolution":{
                 "url":"http:\/\/distilleryimage7.s3.amazonaws.com\/59bc708edb4511e1b7ea22000a1cbb16_7.jpg",
                 "width":612,
                 "height":612
              }
           },
           "caption":null,
           "user_has_liked":false,
           "id":"247821697921944007_6064449",
           "user":{
              "username":"rebeccaminkoff",
              "website":"http:\/\/www.rebeccaminkoff.com",
              "bio":"The Downtown Romantic. My life, my work, my world.",
              "profile_picture":"http:\/\/images.instagram.com\/profiles\/profile_6064449_75sq_1332274636.jpg",
              "full_name":"Rebecca Minkoff",
              "id":"6064449"
           }
        }
     ]
  }
  </code></pre>