json.loads时发生ValueError [英] ValueError while json.loads

问题描述

我正在尝试处理从Scopus下载的一些数据，并且设法重现我得到的错误:

I'm trying to process some data I downloaded from Scopus, and I managed to reproduce the error I get like this:

import json

text = """{"abstracts-retrieval-response":{"coredata":{"prism:doi":"10.1016/j.cma.2013.10.001","dc:title":"A hierarchical detection framework for computational contact mechanics","prism:aggregationType":"Journal","citedby-count":"0","prism:publicationName":"Computer Methods in Applied Mechanics and Engineering","prism:volume":"268","prism:pageRange":"574-588","prism:coverDate":"2014-01-01"},"authors":{"author": [{"@_fa": "true", "@auid": "22939868800", "@seq": "1", "ce:initials":"A.M.","ce:indexed-name":"Aragon A.M.","ce:surname":"Aragón","ce:given-name":"Alejandro M.","preferred-name":{"ce:initials":"A.M.","ce:indexed-name":"Aragón A.","ce:surname":"Aragón","ce:given-name":"Alejandro M."},"author-url":"http://api.elsevier.com/content/author/author_id:22939868800","affiliation":{"@href": "http://api.elsevier.com/content/affiliation/affiliation_id:60028186", "@id": "60028186"}},{"@_fa": "true", "@auid": "7101755440", "@seq": "2", "ce:initials":"J.-F.","ce:indexed-name":"Molinari J.-F.","ce:surname":"Molinari","ce:given-name":"Jean-François","preferred-name":{"ce:initials":"J.F.","ce:indexed-name":"Molinari J.","ce:surname":"Molinari","ce:given-name":"Jean François"},"author-url":"http://api.elsevier.com/content/author/author_id:7101755440","affiliation": [{"@href": "http://api.elsevier.com/content/affiliation/affiliation_id:60028186", "@id": "60028186"},{"@href": "http://api.elsevier.com/content/affiliation/affiliation_id:60028186", "@id": "60028186"}]}]},"item":{"bibrecord":{"tail":{"bibliography":{"@refcount": "66", "reference": [{"@id": "1", "ref-info":{"ref-title":{"ref-titletext":"Ber die berührung fester elastischer körper"},"refd-itemidlist":{"itemid":{"@idtype": "SGR", "$" :"84934701192"}},"ref-authors":{"author":{"@seq": "1", "ce:initials":"H.","ce:indexed-name":"Hertz H.","ce:surname":"Hertz"}},"ref-sourcetitle":"Journal für die reine und angewandte Mathematik","ref-publicationyear":{"@first": "1881"},"ref-volisspag":{"voliss":{"@issue": "92", "@volume": "92"},"pagerange":{"@first": "156", "@last": "171"}},"ref-website":{"ce:e-address":{"@type": "url", "$" :"http://www.reference-global.com/doi/abs/10.1515/crll.1882.92.156"}}},"ref-fulltext":"Hertz H. ber die berührung fester elastischer körper. Journal für die reine und angewandte Mathematik 1881, 92(92):156-171. http://www.reference-global.com/doi/abs/10.1515/crll.1882.92.156."},{"@id": "2", "ref-info":{"ref-title":{"ref-titletext":"Crashworthiness analysis in the automotive industry"},"refd-itemidlist":{"itemid":{"@idtype": "SGR", "$" :"0027086693"}},"ref-authors":{"author": [{"@seq": "1", "ce:initials":"K.","ce:indexed-name":"Schweizerhof K.","ce:surname":"Schweizerhof"},{"@seq": "2", "ce:initials":"L.","ce:indexed-name":"Nilsson L.","ce:surname":"Nilsson"},{"@seq": "3", "ce:initials":"J.","ce:indexed-name":"Hallquist J.","ce:surname":"Hallquist"}]},"ref-sourcetitle":"International Journal of Computer Applications in Technology, Special Issue on the Industrial Use of Finite-element Analysis","ref-publicationyear":{"@first": "1992"},"ref-volisspag":{"voliss":{"@volume": "5"},"pagerange":{"@first": "134", "@last": "156"}},"ref-text":"2/3/4"},"ref-fulltext":"Schweizerhof K., Nilsson L., Hallquist J. Crashworthiness analysis in the automotive industry. International Journal of Computer Applications in Technology, Special Issue on the Industrial Use of Finite-element Analysis 1992, 5(2/3/4):134-156."},{"@id": "3", "ref-info":{"ref-title":{"ref-titletext":"Aspects of modelling and computation in the analysis of metal forming"},"refd-itemidlist":{"itemid":{"@idtype": "SGR", "$" :"0025398772"}},"ref-authors":{"author":{"@seq": "1", "ce:initials":"I.S.","ce:indexed-name":"Doltsinis I.S.","ce:surname":"Doltsinis"}},"ref-sourcetitle":"Engineering Computations","ref-publicationyear":{"@first": "1990"},"ref-volisspag":{"voliss":{"@issue": "1", "@volume": "7"},"pagerange":{"@first": "2", "@last": "20"}},"ref-website":{"ce:e-address":{"@type": "url", "$" :"http://dx.doi.org/10.1108/eb02378"}}},"ref-fulltext":"Doltsinis I.S. Aspects of modelling and computation in the analysis of metal forming. Engineering Computations 1990, 7(1):2-20. http://dx.doi.org/10.1108/eb02378."},{"@id": "4", "ref-info":{"ref-title":{"ref-titletext":"A model of third body abrasive friction and wear in hot metal forming"},"refd-itemidlist":{"itemid":{"@idtype": "SGR", "$" :"0345035205"}},"ref-authors":{"author": [{"@seq": "1", "ce:initials":"S.","ce:indexed-name":"Stupkiewicz S.","ce:surname":"Stupkiewicz"},{"@seq": "2", "ce:initials":"Z.","ce:indexed-name":"Mroz Z.","ce:surname":"Mróz"}]},"ref-sourcetitle":"Wear","ref-publicationyear":{"@first": "1999"},"ref-volisspag":{"voliss":{"@issue": "1", "@volume": "231"},"pagerange":{"@first": "124", "@last": "138"}},"ref-website":{"ce:e-address":{"@type": "url", "$" :"http://dx.doi.org/10.1016/S0043-1648(99)00124-6"}}},"ref-fulltext":"Stupkiewicz S., Mróz Z. A model of third body abrasive friction and wear in hot metal forming. 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Advanced Robotics 1988, 3(3):193-212. http://www.ingentaconnect.com/content/vsp/arb/1988/00000003/00000003/art00003, 10.1163/156855389X00091."},{"@id": "26", "ref-info":{"ref-title":{"ref-titletext":{"sup":"*"}]}}}}}}"""

results = json.loads(text)

print(json.dumps(results,
             sort_keys=True,
             indent=4, separators=(',', ': ')))

然后出现以下错误:

Traceback (most recent call last):
  File "./scopus_api.py", line 11, in <module>
    results = json.loads(text)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/json/__init__.py", line 318, in loads
    return _default_decoder.decode(s)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/json/decoder.py", line 343, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/json/decoder.py", line 359, in raw_decode
    obj, end = self.scan_once(s, idx)
ValueError: Expecting ',' delimiter: line 1 column 23632 (char 23631)

我发现在大多数情况下，当字符串出现问题时都会出现这种类型的错误，但是我检查了字符串，字符23630(在vim中)仅显示正常字符.所以我不知道字符串怎么了.我发现了类似此的帖子，但它们并没有真正的帮助.

I have found that for the most part, this type of error arises when there's a problem with the string, but I have checked the string and character 23630 (in vim) shows just a normal character. So I have no idea what's wrong with the string. I have found posts like this one, but they're not really helpful.

推荐答案

您的JSON无效.您可以尝试此非常有用的资源，它可以向您显示JSON文件中的错误.使用验证JSON" ，查找错误应该没有问题.只需复制/粘贴介于两个"""之间的JSON，就可以了.

Your JSON is not valid. You can try this very helpful resource which can show you the errors in the JSON file. With "Validate JSON" there should be no problem finding your errors. Just copy/paste your JSON which is in between the two """ and you're fine.

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