[英]Python CSV to JSON is quoting nested objects
我正在使用以下内容将 CSV 文件转换为 JSON。 问题是,任何嵌套的对象都会被引用。 我该如何解决这个问题,以便我可以将 output 传递给端点?
def csvToJson(tokenHeader):
data = []
with open('CSV/quiz-questions.csv') as questionFile:
csv.field_size_limit(sys.maxsize)
csvReader = csv.DictReader(questionFile)
for row in csvReader:
row = {key: (None if value == "" else value) for key, value in row.items()}
row = {key: ([] if value == "[]" else value) for key, value in row.items()}
data.append(json.dumps(row, indent=4, ensure_ascii=False))
Output 代码段:
"question": "{'guid': ...
您可以使用此 function 将 csv 读入具有列的字典列表:值结构:
import csv
def open_csv(path):
'''return a list of dictionaries
'''
with open(path, 'r') as file:
reader = csv.DictReader(file)
# simple way to do the replacements, but do you really need to do this?
return [{k: [] if v == '[]' else v or None
for k, v in dict(row).items()}
for row in reader]
data = open_csv('test.txt')
# output to json because it looks better, null is None
import json
print(json.dumps(data, indent=4))
测试.csv
name,age,hobby,countries
foo,31,,"['123', 'abc']"
bar,60,python programming,[]
Output:
[
{
"name": "foo",
"age": "31",
"hobby": null,
"countries": "['123', 'abc']"
},
{
"name": "bar",
"age": "60",
"hobby": "python programming",
"countries": []
}
]
我通过处理写作方面的事情来解决这个问题。 将我的问题传递给 CSV 时,我正在使用嵌套对象创建字典。 从 CSV 读取时,这会引起头痛。 所以现在我用这条线来修复我的嵌套对象:
question = {key: (json.dumps(value) if key in ['question', etc. etc.] else value) for key, value in question.items()}
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