Question

我对python程序不熟悉，有人可以帮忙吗？非常感谢！

def ConvertInputFileJsonStr(InputCsvPath):
    #### Detail Data ####
    fo = open(InputCsvPath, "r")
    ColumnValuesCSVColumns = (
    'externalDataRef', 'language','mailingListLibraryId','surveyID')
    reader = csv.DictReader(fo, ColumnValuesCSVColumns)
    ls = []
    for row in reader:
        ls.append(row)
    groups = []
    uniquekeys = []
    for k, g in groupby(ls, lambda r: (r['externalDataRef'],r['language'], r['surveyID'])):
        groups.append({
            "externalDataRef": k[0],
            "language": k[1],
            "surveyID": k[2],
            "qualtricsDetails": [{k: v for k, v in d.items() if k not in ['externalDataRef','language','surveyID']} for d in list(g)]
        })
        uniquekeys.append(k)
    return groups
    fo.close()

它将返回

[
  {
    "externalDataRef": "535985",
    "language": "EN",
    "qualtricsDetails": [{
      "mailingListLibraryId": "9011111111111"
    }],
    "surveyID": "123456789"
  }
]

但我希望将其转换为以下示例。我该怎么办？

[
  {
    "externalDataRef": "535985",
    "language": "EN",
    "qualtricsDetails": {
      "mailingListLibraryId": "9011111111111"
    },
    "surveyID": "123456789"
  }
]

Answer 1

您需要获取列表的第一项。您可以这样做，但是如果结果为空，则会出现list index out of range错误。

"qualtricsDetails": [{k: v for k, v in d.items() if k not in ['externalDataRef','language','surveyID']} for d in list(g)][0]

Answer 2

看起来您只有以下4列：

'externalDataRef', 'language', 'mailingListLibraryId', 'surveyID'

因此，通过更改以下行，您可以使用更简单的语法轻松实现目标：

"qualtricsDetails": [{k: v for k, v in d.items() if k not in ['externalDataRef','language','surveyID']} for d in list(g)]
    })

对此：

"qualtricsDetails": {"mailingListLibraryId": k[3]}

请告诉我是否有帮助。

Python将csv文件转换为Json问题

2 个答案: