我使用下面的代码来形成一个 JSON，通过从 csv 读取数据
df = pd.read_csv('/testdata.csv', dtype={
"debt_type": str,
"debt_amount": int,
"interest_rate": float,
"total_monthly_payment": int,
"remaining_term,interest_payable": int})
finalList = []
finalDict = {}
grouped = df.groupby(['debt_type'])
for key, value in grouped:
dictionary = {}
j = grouped.get_group(key).reset_index(drop=True)
dictionary['debt_type'] = j.at[0, 'debt_type']
dictList = []
anotherDict = {}
for i in j.index:
anotherDict['debt_amount'] = j.at[i, 'debt_amount']
anotherDict['interest_rate'] = j.at[i, 'interest_rate']
anotherDict['total_monthly_payment'] = j.at[i, 'total_monthly_payment']
anotherDict['remaining_term'] = j.at[i, 'remaining_term']
anotherDict['interest_payable'] = j.at[i, 'interest_payable']
dictList.append(anotherDict)
dictionary['loan_info'] = dictList
finalList.append(dictionary)
finalDict = finalList
并希望达到以下目标
{"loan_info":{"debt_amount":9000,"interest_rate":23,"total_monthly_payment":189,"remaining_term":129,"interest_payable":15356},"debt_type":"credit_card"}
然而，我得到的是下面
[{'debt_type': 'credit_card', 'loan_info': [{'debt_amount': 9000, 'interest_rate': 12.2, 'total_monthly_payment': 189, 'remaining_term': 129, 'interest_payable': 15256}]}]
任何人都可以在这里帮忙。提前致谢。
我认为你需要的是使用pandas.DataFrame.to_dict()和pandas.DataFrame.to_json()。
阅读loan_info完csv 文件后，您可以创建一个新列，将您想要的所有字段格式化为 Python 字典：
loan_info_cols = ['debt_amount', 'interest_rate', 'total_monthly_payment', 'remaining_term', 'interest_payable']
df['loan_info'] = df[loan_info_cols].apply(lambda x: x.to_dict(), axis=1)
然后删除我们刚刚使用的列：
df = df.drop(loan_info_cols, axis=1)
这是我们到目前为止所拥有的：
print(df)
debt_type loan_info
0 credit_card {u'total_monthly_payment': 189.0, u'interest_p...
1 debit_card {u'total_monthly_payment': 165.0, u'interest_p...
现在您可以将整个数据帧转换为 JSON ：
df_json = df.to_json(orient='records', lines=True)
print(df_json)
{"debt_type":"credit_card","loan_info":{"total_monthly_payment":189.0,"interest_payable":15356.0,"interest_rate":23.0,"debt_amount":9000.0,"remaining_term":129.0}}
{"debt_type":"debit_card","loan_info":{"total_monthly_payment":165.0,"interest_payable":21354.0,"interest_rate":24.0,"debt_amount":8000.0,"remaining_term":167.0}}
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