通过python代码追加JSON文件
我正在尝试创建一个函数,该函数将数据附加到json文件中,并遵循已经存在的相同缩进。我创建了json文件,如下所示通过python代码追加JSON文件,python,json,Python,Json,我正在尝试创建一个函数,该函数将数据附加到json文件中,并遵循已经存在的相同缩进。我创建了json文件,如下所示 { "TableA": [ {"ID": "10001", "Name": "Chandan","Age": "29"}, {"ID": "10002", "Name": "Rajesh", "Age": "24"}, {"ID": "10003", "Name": "Raju", "A
{
"TableA":
[
{"ID": "10001", "Name": "Chandan","Age": "29"},
{"ID": "10002", "Name": "Rajesh", "Age": "24"},
{"ID": "10003", "Name": "Raju", "Age": "25"}
]
}
Python代码:
import json
# Write Data on Json file
a_dict = {"ID": "10005", "Name": "Manoj","Age": "31"}
try:
with open('TableA.json', 'a') as f:
json_obj = json.dump(a_dict, json.load(f),ensure_ascii=False)
f.write(json_obj)
f.close()
except IOError as io:
print "ERROR: ", io
# Read data from Json File
with open('TableA.json') as data_file:
data = json.load(data_file)
for i in data["TableA"]:
print "ID: \t", i["ID"]
print "Name: \t", i["Name"]
print "Age: \t", i["Age"]
您还可以选择重新编写整个json,而不是只追加一行
with open('TableA.json') as data_file:
data = json.load(data_file)
a_dict = {"ID": "10005", "Name": "Manoj","Age": "31"}
new_data = data["TableA"].append(a_dict)
with open('TableA.json','w') as f:
f.write(json.dumps(new_data, indent=4, sort_keys=True))
为了获得正确的输出,我做了一些更改。如果有人帮我优化代码,那么请帮我
import json
# Write Data
a_dict = {}
try:
with open('TableA.json') as data_file:
data = json.load(data_file)
temp_list = []
for dicObj in data["TableA"]:
temp_list.append(dicObj)
temp_list.append({"ID": "10006", "Name": "Ritesh","Age": "21"})
data["TableA"] = temp_list
a_dict["TableA"] = data["TableA"]
with open('TableA.json','w') as f:
f.write(json.dumps(a_dict, indent=4, sort_keys=True, encoding="utf-8"))
except IOError as io:
print "ERROR: ", io
# Read data from Json File
with open('TableA.json') as data_file:
data = json.load(data_file)
for i in data["TableA"]:
print "ID: \t", i["ID"]
print "Name: \t", i["Name"]
print "Age: \t", i["Age"]
输出:
{
"TableA": [
{
"Age": "29",
"ID": "10001",
"Name": "Chandan"
},
{
"Age": "24",
"ID": "10002",
"Name": "Rajesh"
},
{
"Age": "25",
"ID": "10003",
"Name": "Raju"
},
{
"Age": "31",
"ID": "10005",
"Name": "Manoj"
},
{
"Age": "21",
"ID": "10004",
"Name": "Ritesh"
},
{
"Age": "21",
"ID": "10006",
"Name": "Ritesh"
}
]
}
你有问题吗?如果您使用的Python代码存在特定问题,那么(1)用
Python
标记问题,(2)提供相关代码,以及(3)描述您遇到的特定问题。还提供一个输入和预期输出的示例。即使在编辑之后,您的问题仍然很模糊。我投票决定结束。通过给出示例输入和输出,试图澄清相同缩进的含义,以及代码生成的输出有什么问题。#Rick,实际上,当我要阅读通过代码更新的JSON文件时,我会发现错误,因为JSON格式无效。所以我把重点放在缩进上。请看这个,给我一些想法。#谢谢#iamkhush,您的代码对于获得正确的输出非常有用,但我做了一些更改以使其更加清晰。