python中json文件如何转换为外部链接
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参考技术A python中json文件如何转换为外部链接？回答如下：第一步先打开设置按钮，然后操作账户管理中心进入，多尝试突破。 参考技术B 1、JSON是一种便于信息交流的文件格式。
2、ython Json模块有序列化和反序列化的过程。encoding-将Python对象代码转换为Json字符串；decoding-将Json格式字符串解码转换为Python对象。使用json模块必须先导入:
如何在 .txt 文件中的 JSON 对象之间添加逗号，然后在 Python 中将其转换为 JSON 数组
【中文标题】如何在 .txt 文件中的 JSON 对象之间添加逗号，然后在 Python 中将其转换为 JSON 数组【英文标题】：How to add commas in between JSON objects present in a .txt file and then convert it into JSON array in Python 【发布时间】：2019-08-28 12:29:52 【问题描述】：我正在读取一个包含 JSON 对象的 txt 文件，其中的对象没有用逗号分隔。我想在 json 对象之间添加逗号，并将它们全部放入 JSON 列表或数组中。
我尝试过 JSON.loads，但收到 JSON 解码错误。所以我意识到我应该在 .txt 文件中存在的不同对象之间添加逗号
以下是.txt中文件内容的示例
"@mdate": "2011-01-11",
"@key": "journals/acta/Saxena96",
"author":
"ftail": "\n",
"ftext": "Sanjeev Saxena"
,
"title":
"ftail": "\n",
"ftext": "Parallel Integer Sorting and Simulation Amongst CRCW Models."
,
"pages":
"ftail": "\n",
"ftext": "607-619"
,
"year":
"ftail": "\n",
"ftext": "1996"
,
"volume":
"ftail": "\n",
"ftext": "33"
,
"journal":
"ftail": "\n",
"ftext": "Acta Inf."
,
"number":
"ftail": "\n",
"ftext": "7"
,
"url":
"ftail": "\n",
"ftext": "db/journals/acta/acta33.htmlfSaxena96"
,
"ee":
"ftail": "\n",
"ftext": "http://dx.doi.org/10.1007/BF03036466"
,
"ftail": "\n",
"ftext": "\n"
"@mdate": "2011-01-11",
"@key": "journals/acta/Simon83",
"author":
"ftail": "\n",
"ftext": "Hans-Ulrich Simon"
,
"title":
"ftail": "\n",
"ftext": "Pattern Matching in Trees and Nets."
,
"pages":
"ftail": "\n",
"ftext": "227-248"
,
"year":
"ftail": "\n",
"ftext": "1983"
,
"volume":
"ftail": "\n",
"ftext": "20"
,
"journal":
"ftail": "\n",
"ftext": "Acta Inf."
,
"url":
"ftail": "\n",
"ftext": "db/journals/acta/acta20.htmlfSimon83"
,
"ee":
"ftail": "\n",
"ftext": "http://dx.doi.org/10.1007/BF01257084"
,
"ftail": "\n",
"ftext": "\n"
''''''''''''''''''''''''''''''''''
预期结果：
''''''''''''''''''''''''''''''''''
[
"@mdate": "2011-01-11",
"@key": "journals/acta/Saxena96",
"author":
"ftail": "\n",
"ftext": "Sanjeev Saxena"
,
"title":
"ftail": "\n",
"ftext": "Parallel Integer Sorting and Simulation Amongst CRCW Models."
,
"pages":
"ftail": "\n",
"ftext": "607-619"
,
"year":
"ftail": "\n",
"ftext": "1996"
,
"volume":
"ftail": "\n",
"ftext": "33"
,
"journal":
"ftail": "\n",
"ftext": "Acta Inf."
,
"number":
"ftail": "\n",
"ftext": "7"
,
"url":
"ftail": "\n",
"ftext": "db/journals/acta/acta33.htmlfSaxena96"
,
"ee":
"ftail": "\n",
"ftext": "http://dx.doi.org/10.1007/BF03036466"
,
"ftail": "\n",
"ftext": "\n"
,
"@mdate": "2011-01-11",
"@key": "journals/acta/Simon83",
"author":
"ftail": "\n",
"ftext": "Hans-Ulrich Simon"
,
"title":
"ftail": "\n",
"ftext": "Pattern Matching in Trees and Nets."
,
"pages":
"ftail": "\n",
"ftext": "227-248"
,
"year":
"ftail": "\n",
"ftext": "1983"
,
"volume":
"ftail": "\n",
"ftext": "20"
,
"journal":
"ftail": "\n",
"ftext": "Acta Inf."
,
"url":
"ftail": "\n",
"ftext": "db/journals/acta/acta20.htmlfSimon83"
,
"ee":
"ftail": "\n",
"ftext": "http://dx.doi.org/10.1007/BF01257084"
,
"ftail": "\n",
"ftext": "\n"
]
''''''''''''''''''''
【问题讨论】：
***.com/questions/27907633/…的可能重复 【参考方案1】：您可以使用 reqexp 在对象之间添加逗号：
import re
with open('name.txt', 'r') as input, open('out.txt', 'w') as output:
output.write("[\n")
for line in input:
line = re.sub('', ',', line)
output.write(' '+line)
output.write("]\n")
【讨论】：
使用正则表达式改变分层/嵌套结构是 very, very bad idea - 您可以通过这种方式无意中更改更深的嵌套结构或值（即"ftext": "I contain thisthat" 将获得一个额外的逗号）。此外，如果你想做简单的字符串替换，正则表达式是一种矫枉过正——str.replace() 可以很好地完成这项工作。【参考方案2】：
如果您始终可以保证您的 JSON 将按照您的示例进行格式化，即新的 JSON 对象从最后一个结束的同一行开始并且没有缩进，您只需将 JSON 读入一个缓冲区，直到遇到这样的行，然后发送缓冲区以进行 JSON 解析 - 冲洗并重复：
import json
parsed = [] # a list to hold individually parsed JSON objects
with open('path/to/your.json') as f:
buffer = ''
for line in f:
if line[0] == '': # end of the current JSON object
parsed.append(json.loads(buffer + ''))
buffer = line[1:]
else:
buffer += line
print(json.dumps(parsed, indent=2)) # just to make sure it all went well
这会产生：
[
"@mdate": "2011-01-11",
"@key": "journals/acta/Saxena96",
"author":
"ftail": "\n",
"ftext": "Sanjeev Saxena"
,
"title":
"ftail": "\n",
"ftext": "Parallel Integer Sorting and Simulation Amongst CRCW Models."
,
"pages":
"ftail": "\n",
"ftext": "607-619"
,
"year":
"ftail": "\n",
"ftext": "1996"
,
"volume":
"ftail": "\n",
"ftext": "33"
,
"journal":
"ftail": "\n",
"ftext": "Acta Inf."
,
"number":
"ftail": "\n",
"ftext": "7"
,
"url":
"ftail": "\n",
"ftext": "db/journals/acta/acta33.htmlfSaxena96"
,
"ee":
"ftail": "\n",
"ftext": "http://dx.doi.org/10.1007/BF03036466"
,
"ftail": "\n",
"ftext": "\n"
,
"@mdate": "2011-01-11",
"@key": "journals/acta/Simon83",
"author":
"ftail": "\n",
"ftext": "Hans-Ulrich Simon"
,
"title":
"ftail": "\n",
"ftext": "Pattern Matching in Trees and Nets."
,
"pages":
"ftail": "\n",
"ftext": "227-248"
,
"year":
"ftail": "\n",
"ftext": "1983"
,
"volume":
"ftail": "\n",
"ftext": "20"
,
"journal":
"ftail": "\n",
"ftext": "Acta Inf."
,
"url":
"ftail": "\n",
"ftext": "db/journals/acta/acta20.htmlfSimon83"
,
"ee":
"ftail": "\n",
"ftext": "http://dx.doi.org/10.1007/BF01257084"
,
"ftail": "\n",
"ftext": "\n"
]
如果您的情况不是很明确（即您无法预测格式），您可以尝试一些基于迭代/事件的 JSON 解析器（例如ijson），它们能够告诉您一次'root' 对象已关闭，因此您可以将已解析的 JSON 对象“拆分”成一个序列。
更新：再想一想，除了内置的 json 模块之外，您不需要任何东西，即使您的连接 JSON 没有正确或缩进 - 您可以使用 @ 987654322@（及其未记录的第二个参数）遍历您的数据并以迭代方式查找有效的 JSON 结构，直到您遍历整个文件（或遇到错误）。例如：
import json
parser = json.JSONDecoder()
parsed = [] # a list to hold individually parsed JSON structures
with open('test.json') as f:
data = f.read()
head = 0 # hold the current position as we parse
while True:
head = (data.find('', head) + 1 or data.find('[', head) + 1) - 1
try:
struct, head = parser.raw_decode(data, head)
parsed.append(struct)
except (ValueError, json.JSONDecodeError): # no more valid JSON structures
break
print(json.dumps(parsed, indent=2)) # make sure it all went well
应该给您与上述相同的结果，但这次将不依赖于 在您的 JSON 对象“关闭”时作为新行的第一个字符。它也应该适用于背靠背堆叠的 JSON 数组。
【讨论】：
非常感谢您的帮助。但是我收到的 JSON 格式不像我提供的那样好。如何使用 ijson 根据根节点拆分 json ？以上是关于python中json文件如何转换为外部链接的主要内容，如果未能解决你的问题，请参考以下文章