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POPython GAE: raised ValueError(Unpaired high surrogate) with json.loads only on production server
 

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  1. POPython GAE: raised ValueError(Unpaired high surrogate) with json.loads only on production server
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    <p>On GAE with Python, I'm using urlfetch to fetch a json string from Flickr. When I try to load that string with json.loads on the production server the exception "raised ValueError(Unpaired high surrogate)" is thrown.</p> <p>When I try to json.loads the string in the development console, it loads into a dict as expected (see below). I have successfully loaded several other json strings from Flickr with the same code. There is something about the json string below that throws the ValueError exception ONLY on the production server.</p> <pre><code>import json s = """{"photo":{"id":"191019103", "secret":"d7a8bb95bc", "server":"72", "farm":1, "dateuploaded":"1153079847", "isfavorite":0, "license":"1", "safety_level":"0", "rotation":0, "originalsecret":"d7a8bb95bc", "originalformat":"jpg", "owner":{"nsid":"13968020@N00", "username":"\ud800dc80 jgraham", "realname":"", "location":"", "iconserver":"38", "iconfarm":1}, "title":{"_content":"By the Year 2000 All Our Food Will be in the Form of Tiny Pills"}, "description":{"_content":""}, "visibility":{"ispublic":1, "isfriend":0, "isfamily":0}, "dates":{"posted":"1153079847", "taken":"2006-07-15 14:31:16", "takengranularity":"0", "lastupdate":"1282690106"}, "views":"984", "editability":{"cancomment":0, "canaddmeta":0}, "publiceditability":{"cancomment":1, "canaddmeta":0}, "usage":{"candownload":1, "canblog":0, "canprint":0, "canshare":1}, "comments":{"_content":"18"}, "notes":{"note":[]}, "people":{"haspeople":0}, "tags":{"tag":[{"id":"1207251-191019103-2909", "author":"13968020@N00", "raw":"Birmingham", "_content":"birmingham", "machine_tag":0}, {"id":"1207251-191019103-77552", "author":"13968020@N00", "raw":"Bullring", "_content":"bullring", "machine_tag":0}, {"id":"1207251-191019103-463", "author":"13968020@N00", "raw":"Abstract", "_content":"abstract", "machine_tag":0}, {"id":"1207251-191019103-1174", "author":"13968020@N00", "raw":"Architecture", "_content":"architecture", "machine_tag":0}, {"id":"1207251-191019103-141", "author":"13968020@N00", "raw":"Blue", "_content":"blue", "machine_tag":0}, {"id":"1207251-191019103-2194948", "author":"13968020@N00", "raw":"i500", "_content":"i500", "machine_tag":0}, {"id":"1207251-191019103-11820", "author":"13968020@N00", "raw":"Explore", "_content":"explore", "machine_tag":0}, {"id":"1207251-191019103-3254511", "author":"13968020@N00", "raw":"utata_feature", "_content":"utatafeature", "machine_tag":0}]}, "urls":{"url":[{"type":"photopage", "_content":"http:\/\/www.flickr.com\/photos\/jgraham\/191019103\/"}]}, "media":"photo"}, "stat":"ok"}""" print json.loads(s) #prints dict </code></pre>
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    1. USwaigani
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      1. POPython GAE: raised ValueError(Unpaired high surrogate) with json.loads only on production server
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    1. COThis is a really unique problem! I've narrowed it down to `json.loads('{"username":"\\ud800dc80 jgraham"}')`. I copied the source and compared to `json` version 2.0.9 and they are for all intents and purposes the same, so this error comes from elsewhere. Still digging.
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      1. POPython GAE: raised ValueError(Unpaired high surrogate) with json.loads only on production server
      1. USbossylobster
    2. COHere is a good answer about why it's failing: https://github.com/simplejson/simplejson/issues/62#issuecomment-13996448
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      1. USbossylobster
 

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