使用Python更新JSON文件中的值
如何输入json文件并查找使用Python更新JSON文件中的值,python,json,Python,Json,如何输入json文件并查找“类”：“descriptionScreenshotsView”，并将其替换为“类”：“？欢迎任何帮助 代码/我尝试的内容： #!/usr/bin/env python3 import json # Load the data file_name = "path/to/json/file" with open(file_name) as fh: full_data = json.load(fh) screen_shots = full_data['tabs'
“类”：“descriptionScreenshotsView”“类”：“#!/usr/bin/env python3
import json
# Load the data
file_name = "path/to/json/file"
with open(file_name) as fh:
full_data = json.load(fh)
screen_shots = full_data['tabs'][0]['views'][3]['screenshots']
for number, screen_shot in enumerate(screen_shots):
new_url = input("Screnshot URL: ").strip()
str = """{
"class" : "DepictionScreenshotsView"
}"""
data = json.loads(str)
data["class"] = "test"
full_data['tabs'][0]['views'][3]['screenshots'] = screen_shots
with open(file_name, 'w') as fh:
json.dump(full_data, fh, indent=4)
{
"minVersion": "1",
"class": "DepictionTabView",
"tintColor": "",
"headerImage": "",
"tabs": [
{
"tabname": "Details",
"class": "DepictionStackView",
"tintColor": "",
"views": [
{
"class": "DepictionSubheaderView",
"useBoldText": true,
"useBottomMargin": false,
"title": "Description"
},
{
"class": "DepictionMarkdownView",
"markdown": "Some dummy text...",
"useRawFormat": true
},
{
"class": "DepictionSeparatorView"
},
{
"class": "DepictionSubheaderView",
"useBoldText": true,
"useBottomMargin": false,
"title": "Screenshots"
},
{
"class": "DepictionScreenshotsView",
"itemCornerRadius": 6,
"itemSize": "{160, 284.44444444444}",
"screenshots": [
{
"accessibilityText": "Screenshot",
"url": "http://example.com/image.png"
}
]
},
{
"class": "DepictionSeparatorView"
},
{
"class": "DepictionSubheaderView",
"useBoldText": true,
"useBottomMargin": false,
"title": "Information"
},
{
"class": "DepictionTableTextView",
"title": "Author",
"text": "User"
},
{
"class": "DepictionSpacerView",
"spacing": 16
},
{
"class": "DepictionStackView",
"views": [
{
"class": "DepictionTableButtonView",
"title": "Contact",
"action": "http://example.com/",
"openExternal": true
}
]
},
{
"class": "DepictionSpacerView",
"spacing": 16
}
]
},
{
"tabname": "History",
"class": "DepictionStackView",
"views": [
{
"class": "DepictionSubheaderView",
"useBoldText": true,
"useBottomMargin": false,
"title": ""
},
{
"class": "DepictionMarkdownView",
"markdown": "",
"useRawFormat": true
}
]
}
]
}
IIUC，您应该能够循环到嵌套元素中，以找到您想要的：
导入json
将open（“/path/to/file.json”）作为fh：
content=json.load（fh）
#get中的第二个参数是在密钥不存在时返回的值
#并且返回空列表将防止出现错误，说明NoneType不可编辑
对于content.get中的选项卡（'tabs'，[]）：
对于content.get中的视图（'views'，[]）：
如果view.get（'class'）='descriptionScreenshotsView'：
视图['class']=''
#这将在适当的位置修改内容
将open（'/path/to/newfile.json'，w'）作为fh：
dump（content，fh，indent=4）
{
"minVersion": "1",
"class": "DepictionTabView",
"tintColor": "",
"headerImage": "",
"tabs": [
{
"tabname": "Details",
"class": "DepictionStackView",
"tintColor": "",
"views": [
{
"class": "DepictionSubheaderView",
"useBoldText": true,
"useBottomMargin": false,
"title": "Description"
},
{
"class": "DepictionMarkdownView",
"markdown": "Some dummy text...",
"useRawFormat": true
},
{
"class": "DepictionSeparatorView"
},
{
"class": "DepictionSubheaderView",
"useBoldText": true,
"useBottomMargin": false,
"title": "Screenshots"
},
{
"class": "",
"itemCornerRadius": 6,
"itemSize": "{160, 284.44444444444}",
"screenshots": [
{
"accessibilityText": "Screenshot",
"url": "http://example.com/image.png"
}
]
},
{
"class": "DepictionSeparatorView"
},
{
"class": "DepictionSubheaderView",
"useBoldText": true,
"useBottomMargin": false,
"title": "Information"
},
{
"class": "DepictionTableTextView",
"title": "Author",
"text": "User"
},
{
"class": "DepictionSpacerView",
"spacing": 16
},
{
"class": "DepictionStackView",
"views": [
{
"class": "DepictionTableButtonView",
"title": "Contact",
"action": "http://example.com/",
"openExternal": true
}
]
},
{
"class": "DepictionSpacerView",
"spacing": 16
}
]
},
{
"tabname": "History",
"class": "DepictionStackView",
"views": [
{
"class": "DepictionSubheaderView",
"useBoldText": true,
"useBottomMargin": false,
"title": ""
},
{
"class": "DepictionMarkdownView",
"markdown": "",
"useRawFormat": true
}
]
}
]
}
它看起来还保留了顺序，尽管我不能说这是否是一种保证，因为我以前从未注意过这种行为，所以您应该能够循环到嵌套元素中以找到您想要的：
导入json
将open（“/path/to/file.json”）作为fh：
content=json.load（fh）
#get中的第二个参数是在密钥不存在时返回的值
#并且返回空列表将防止出现错误，说明NoneType不可编辑
对于content.get中的选项卡（'tabs'，[]）：
对于content.get中的视图（'views'，[]）：
如果view.get（'class'）='descriptionScreenshotsView'：
视图['class']=''
#这将在适当的位置修改内容
将open（'/path/to/newfile.json'，w'）作为fh：
dump（content，fh，indent=4）
{
"minVersion": "1",
"class": "DepictionTabView",
"tintColor": "",
"headerImage": "",
"tabs": [
{
"tabname": "Details",
"class": "DepictionStackView",
"tintColor": "",
"views": [
{
"class": "DepictionSubheaderView",
"useBoldText": true,
"useBottomMargin": false,
"title": "Description"
},
{
"class": "DepictionMarkdownView",
"markdown": "Some dummy text...",
"useRawFormat": true
},
{
"class": "DepictionSeparatorView"
},
{
"class": "DepictionSubheaderView",
"useBoldText": true,
"useBottomMargin": false,
"title": "Screenshots"
},
{
"class": "",
"itemCornerRadius": 6,
"itemSize": "{160, 284.44444444444}",
"screenshots": [
{
"accessibilityText": "Screenshot",
"url": "http://example.com/image.png"
}
]
},
{
"class": "DepictionSeparatorView"
},
{
"class": "DepictionSubheaderView",
"useBoldText": true,
"useBottomMargin": false,
"title": "Information"
},
{
"class": "DepictionTableTextView",
"title": "Author",
"text": "User"
},
{
"class": "DepictionSpacerView",
"spacing": 16
},
{
"class": "DepictionStackView",
"views": [
{
"class": "DepictionTableButtonView",
"title": "Contact",
"action": "http://example.com/",
"openExternal": true
}
]
},
{
"class": "DepictionSpacerView",
"spacing": 16
}
]
},
{
"tabname": "History",
"class": "DepictionStackView",
"views": [
{
"class": "DepictionSubheaderView",
"useBoldText": true,
"useBottomMargin": false,
"title": ""
},
{
"class": "DepictionMarkdownView",
"markdown": "",
"useRawFormat": true
}
]
}
]
}
它看起来还保留了顺序，尽管我不能说这是否是一种保证，因为我以前从未注意过这种行为您关心保留json的格式吗？使用
json缩进的json.dump
kwarg将转储到带有换行符和indents@Unknown关于您所使用的代码，有什么不起作用张贴？有错误吗？Traceback（最近一次调用）：full_data=json.load（fh）*此处有更多错误，以列出所有*从None json.decoder.jsondeCoderror中引发JSondeCoderror（“预期值”，s，err.value”）：预期值：第1行第1列（char 0）
您关心保留json的格式吗？使用json
库最简单的方法是对文档重新排序，并将其作为一行写出来can@PeterGibson带有缩进的json.dump
kwarg将转储到带有换行符和indents@Unknown关于您所使用的代码，有什么不起作用张贴？有错误吗？Traceback（最近一次调用）：full_data=json.load（fh）*此处有更多错误，以列出所有*从None json.decoder.jsondeCoderror中提出JSondeCoderror（“期望值”，s，err.value”）：期望值：第1行第1列（char 0）
似乎不起作用。这是代码：（代码只是有点剪短，不可能是我的完整代码）我无法访问该站点它似乎不起作用这是代码：（代码只是有点剪短，不可能是我的完整代码）我无法访问该站点