对于想了解Pythonjson.loads显示ValueError:额外数据的读者,本文将提供新的信息,我们将详细介绍pythonjson.loads报错,并且为您提供关于json.decoder.J
对于想了解Python json.loads显示ValueError:额外数据的读者,本文将提供新的信息,我们将详细介绍python json.loads报错,并且为您提供关于json.decoder.JSONDecodeError:额外数据:第1行第5列(字符4)并引发JSONDecodeError(“ Extra data”,s,end)、json.loads是干嘛的?简单阐述json.loads python的用法、Python json.loads 显示 ValueError: Extra data、Python json.loads失败,出现“ ValueError:第1行第33列(字符33)处的无效控制字符”的有价值信息。
本文目录一览:- Python json.loads显示ValueError:额外数据(python json.loads报错)
- json.decoder.JSONDecodeError:额外数据:第1行第5列(字符4)并引发JSONDecodeError(“ Extra data”,s,end)
- json.loads是干嘛的?简单阐述json.loads python的用法
- Python json.loads 显示 ValueError: Extra data
- Python json.loads失败,出现“ ValueError:第1行第33列(字符33)处的无效控制字符”
Python json.loads显示ValueError:额外数据(python json.loads报错)
我正在从JSON文件“ new.json”中获取一些数据,我想过滤一些数据并将其存储到新的JSON文件中。这是我的代码:
import json
with open('new.json') as infile:
data = json.load(infile)
for item in data:
iden = item.get["id"]
a = item.get["a"]
b = item.get["b"]
c = item.get["c"]
if c == 'XYZ' or "XYZ" in data["text"]:
filename = 'abc.json'
try:
outfile = open(filename,'ab')
except:
outfile = open(filename,'wb')
obj_json={}
obj_json["ID"] = iden
obj_json["VAL_A"] = a
obj_json["VAL_B"] = b
我收到一个错误,回溯是:
File "rtfav.py",line 3,in <module>
data = json.load(infile)
File "/usr/lib64/python2.7/json/__init__.py",line 278,in load
**kw)
File "/usr/lib64/python2.7/json/__init__.py",line 326,in loads
return _default_decoder.decode(s)
File "/usr/lib64/python2.7/json/decoder.py",line 369,in decode
raise ValueError(errmsg("Extra data",s,end,len(s)))
ValueError: Extra data: line 88 column 2 - line 50607 column 2 (char 3077 - 1868399)
有人能帮我吗?
这是new.json中数据的示例,文件中还有约1500种这样的词典
{
"contributors": null,"truncated": false,"text": "@HomeShop18 #DreamJob to professional rafter","in_reply_to_status_id": null,"id": 421584490452893696,"favorite_count": 0,"source": "<a href=\"https://mobile.twitter.com\" rel=\"nofollow\">Mobile Web (M2)</a>","retweeted": false,"coordinates": null,"entities": {
"symbols": [],"user_mentions": [
{
"id": 183093247,"indices": [
0,11
],"id_str": "183093247","screen_name": "HomeShop18","name": "HomeShop18"
}
],"hashtags": [
{
"indices": [
12,21
],"text": "DreamJob"
}
],"urls": []
},"in_reply_to_screen_name": "HomeShop18","id_str": "421584490452893696","retweet_count": 0,"in_reply_to_user_id": 183093247,"favorited": false,"user": {
"follow_request_sent": null,"profile_use_background_image": true,"default_profile_image": false,"id": 2254546045,"verified": false,"profile_image_url_https": "https://pbs.twimg.com/profile_images/413952088880594944/rcdr59OY_normal.jpeg","profile_sidebar_fill_color": "171106","profile_text_color": "8A7302","followers_count": 87,"profile_sidebar_border_color": "BCB302","id_str": "2254546045","profile_background_color": "0F0A02","listed_count": 1,"profile_background_image_url_https": "https://abs.twimg.com/images/themes/theme1/bg.png","utc_offset": null,"statuses_count": 9793,"description": "Rafter. Rafting is what I do. Me aur mera Tablet. Technocrat of Future","friends_count": 231,"location": "","profile_link_color": "473623","profile_image_url": "http://pbs.twimg.com/profile_images/413952088880594944/rcdr59OY_normal.jpeg","following": null,"geo_enabled": false,"profile_banner_url": "https://pbs.twimg.com/profile_banners/2254546045/1388065343","profile_background_image_url": "http://abs.twimg.com/images/themes/theme1/bg.png","name": "Jayy","lang": "en","profile_background_tile": false,"favourites_count": 41,"screen_name": "JzayyPsingh","notifications": null,"url": null,"created_at": "Fri Dec 20 05:46:00 +0000 2013","contributors_enabled": false,"time_zone": null,"protected": false,"default_profile": false,"is_translator": false
},"geo": null,"in_reply_to_user_id_str": "183093247","created_at": "Fri Jan 10 10:09:09 +0000 2014","filter_level": "medium","in_reply_to_status_id_str": null,"place": null
}
json.decoder.JSONDecodeError:额外数据:第1行第5列(字符4)并引发JSONDecodeError(“ Extra data”,s,end)
有几种方法可以从通过requests
库获得的响应中解码json。
我希望您获得response
的类似代码:
response = requests.get(url)
首先,它是最底层的,但可靠且易于调试,它使用response.content
,它是响应的原始字节:
result = json.loads(response.content.decode('utf-8'))
second使用response.text
,基本上response.content
被requests
库使用最佳匹配编码自动转换为文本字符串:
result = json.loads(response.text)
以及最高级和最简单的方法,其中requests
会全力做好正确的转换工作:
result = response.json()
其中一种方法应该可以使用。
此外,在收到响应后,您始终需要检查状态码,因为requests
不会在非200状态码上引发异常,因此您需要在执行assert response.status_code == 200
或response.raise_for_status()
之前解码。状态代码不等于200始终表示服务器响应错误并且响应将不包含json。这是List of HTTP Status Codes。
requests
库的所有最常见功能(包括json解析)在简短的文档here中进行了描述。
json.loads是干嘛的?简单阐述json.loads python的用法
本章节我们将为大家介绍如何使用 Python 语言来编码和解码 JSON 对象。JSON(JavaScript Object Notation) 是一种轻量级的数据交换格式,易于人阅读和编写
json.loads 用于解码 JSON 数据。该函数返回 Python 字段的数据类型
json.loads(s[, encoding[, cls[, object_hook[, parse_float[, parse_int[, parse_constant [, object_pairs_hook[, **kw]]]]]]]])
以下实例展示了Python 如何解码 JSON 对象:
#!/usr/bin/python import json jsonData = '{"a":1,"b":2,"c":3,"d":4,"e":5}'; text = json.loads(jsonData) print text
以上代码执行结果为:
立即学习“Python免费学习笔记(深入)”;
{u'a': 1, u'c': 3, u'b': 2, u'e': 5, u'd': 4}
json 类型转换到
以上就是json.loads是干嘛的?简单阐述json.loads
Python json.loads 显示 ValueError: Extra data
我从 JSON 文件“new.json”中获取一些数据,我想过滤一些数据并将其存储到一个新的 JSON 文件中。这是我的代码:
import jsonwith open(''new.json'') as infile: data = json.load(infile)for item in data: iden = item.get["id"] a = item.get["a"] b = item.get["b"] c = item.get["c"] if c == ''XYZ'' or "XYZ" in data["text"]: filename = ''abc.json'' try: outfile = open(filename,''ab'') except: outfile = open(filename,''wb'') obj_json={} obj_json["ID"] = iden obj_json["VAL_A"] = a obj_json["VAL_B"] = b
我收到一个错误,回溯是:
File "rtfav.py", line 3, in <module> data = json.load(infile) File "/usr/lib64/python2.7/json/__init__.py", line 278, in load **kw) File "/usr/lib64/python2.7/json/__init__.py", line 326, in loads return _default_decoder.decode(s) File "/usr/lib64/python2.7/json/decoder.py", line 369, in decode raise ValueError(errmsg("Extra data", s, end, len(s)))ValueError: Extra data: line 88 column 2 - line 50607 column 2 (char 3077 - 1868399)
这是 new.json 中的数据示例,文件中还有大约 1500 个这样的字典
{ "contributors": null, "truncated": false, "text": "@HomeShop18 #DreamJob to professional rafter", "in_reply_to_status_id": null, "id": 421584490452893696, "favorite_count": 0, "source": "<a href=\"https://mobile.twitter.com\" rel=\"nofollow\">Mobile Web (M2)</a>", "retweeted": false, "coordinates": null, "entities": { "symbols": [], "user_mentions": [ { "id": 183093247, "indices": [ 0, 11 ], "id_str": "183093247", "screen_name": "HomeShop18", "name": "HomeShop18" } ], "hashtags": [ { "indices": [ 12, 21 ], "text": "DreamJob" } ], "urls": [] }, "in_reply_to_screen_name": "HomeShop18", "id_str": "421584490452893696", "retweet_count": 0, "in_reply_to_user_id": 183093247, "favorited": false, "user": { "follow_request_sent": null, "profile_use_background_image": true, "default_profile_image": false, "id": 2254546045, "verified": false, "profile_image_url_https": "https://pbs.twimg.com/profile_images/413952088880594944/rcdr59OY_normal.jpeg", "profile_sidebar_fill_color": "171106", "profile_text_color": "8A7302", "followers_count": 87, "profile_sidebar_border_color": "BCB302", "id_str": "2254546045", "profile_background_color": "0F0A02", "listed_count": 1, "profile_background_image_url_https": "https://abs.twimg.com/images/themes/theme1/bg.png", "utc_offset": null, "statuses_count": 9793, "description": "Rafter. Rafting is what I do. Me aur mera Tablet. Technocrat of Future", "friends_count": 231, "location": "", "profile_link_color": "473623", "profile_image_url": "http://pbs.twimg.com/profile_images/413952088880594944/rcdr59OY_normal.jpeg", "following": null, "geo_enabled": false, "profile_banner_url": "https://pbs.twimg.com/profile_banners/2254546045/1388065343", "profile_background_image_url": "http://abs.twimg.com/images/themes/theme1/bg.png", "name": "Jayy", "lang": "en", "profile_background_tile": false, "favourites_count": 41, "screen_name": "JzayyPsingh", "notifications": null, "url": null, "created_at": "Fri Dec 20 05:46:00 +0000 2013", "contributors_enabled": false, "time_zone": null, "protected": false, "default_profile": false, "is_translator": false }, "geo": null, "in_reply_to_user_id_str": "183093247", "lang": "en", "created_at": "Fri Jan 10 10:09:09 +0000 2014", "filter_level": "medium", "in_reply_to_status_id_str": null, "place": null}
答案1
小编典典正如您在以下示例中所见,json.loads
(and json.load
) 不会解码多个 json 对象。
>>> json.loads(''{}''){}>>> json.loads(''{}{}'') # == json.loads(json.dumps({}) + json.dumps({}))Traceback (most recent call last): File "<stdin>", line 1, in <module> File "C:\Python27\lib\json\__init__.py", line 338, in loads return _default_decoder.decode(s) File "C:\Python27\lib\json\decoder.py", line 368, in decode raise ValueError(errmsg("Extra data", s, end, len(s)))ValueError: Extra data: line 1 column 3 - line 1 column 5 (char 2 - 4)
如果要转储多个字典,请将它们包装在一个列表中,转储列表(而不是多次转储字典)
>>> dict1 = {}>>> dict2 = {}>>> json.dumps([dict1, dict2])''[{}, {}]''>>> json.loads(json.dumps([dict1, dict2]))[{}, {}]
Python json.loads失败,出现“ ValueError:第1行第33列(字符33)处的无效控制字符”
我有一个像这样的字符串:
s = u"""{"desc": "\u73cd\u54c1\u7f51-\u5168\u7403\u6f6e\u6d41\u5962\u54c1\u7f51\u7edc\u96f6\u552e\u5546 <br \/>\r\nhttp:\/\/www.zhenpin.com\/ <br \/>\r\n<br \/>\r\n200\u591a\u4e2a\u56fd\u9645\u4e00\u7ebf\u54c1\u724c\uff0c\u9876\u7ea7\u4e70\u624b\u5168\u7403\u91c7\u8d2d\uff0c100%\u6b63\u54c1\u4fdd\u969c\uff0c7\u5929\u65e0\u6761\u2026"}"""
json.loads(s)
返回如下错误消息:
ValueError: Invalid control character at: line 1 column 33 (char 33)
为什么会发生此错误?我怎么解决这个问题?
答案1
小编典典问题是你的unicode字符串包含回车(\r
)和换行符(\n
) 内
的JSON数据字符串文字。如果它们是字符串本身的一部分,则应适当地对其进行转义。如果它们不是字符串的一部分,那么它们也不应该在您的JSON中。
如果无法解决从哪里获取此JSON字符串以生成有效JSON的情况,则可以删除有问题的字符:
>>> json.loads(s.replace(''\r\n'', ''''))
或手动转义它们:
>>> json.loads(s.replace(''\r\n'', ''\\r\\n''))
我们今天的关于Python json.loads显示ValueError:额外数据和python json.loads报错的分享已经告一段落,感谢您的关注,如果您想了解更多关于json.decoder.JSONDecodeError:额外数据:第1行第5列(字符4)并引发JSONDecodeError(“ Extra data”,s,end)、json.loads是干嘛的?简单阐述json.loads python的用法、Python json.loads 显示 ValueError: Extra data、Python json.loads失败,出现“ ValueError:第1行第33列(字符33)处的无效控制字符”的相关信息,请在本站查询。
本文标签: