Python 使用Flask作为API过滤字典

我已将数据帧转换为字典，以便通过flask实现API。我正在努力将列名附加到字典中的每个索引，因此无法运行代码：

@app.route('/api/v1/resources/names', methods=['GET'])
def api_name():
    if 'name' in request.args:
        name = str(request.args['name'])
    else:
        return "Error: No name was provided, Please specify a first and last name"
    results = []

    for index['Name] in main_data:
        if (index == name):
            results.append(index)
    results = str(results)
    return jsonify(results)

当我尝试调用API时

http://127.0.0.1:5000/api/v1/resources/names?name=John%20Doe
TypeError: string indices must be integers

我想这是因为我的字典没有任何列标题，我希望将字典从

{
  "John Doe": {
    "2020-09-01": "4:00PM", 
    "2020-09-03": "8:00AM", 
    "2020-09-04": "2:00PM", 
    "2020-09-14": "8:00AM", 
    "2020-09-16": "6:00PM", 
    "2020-09-22": "5:00PM", 
    "2020-09-23": "2:00PM", 
    "2020-09-25": "1:00PM", 
    "2020-09-30": "5:00PM", 
    "2020-10-01": "8:00PM", 
    "2020-10-05": "5:00PM", 
    "2020-10-08": "1:00PM", 
    "2020-10-09": "5:00PM", 
    "2020-10-10": "4:00PM", 
    "2020-10-12": "5:00PM", 
    "2020-10-14": "7:00PM"
  }, 
  "Firstname Lastname": {
    "2020-08-20": "11:00AM", 
    "2020-08-21": "10:00AM", 
    "2020-08-22": "10:00AM", 
    "2020-08-23": "11:00AM", 
    "2020-08-24": "10:00AM", 
    "2020-08-25": "11:00AM", 
    "2020-08-26": "2:00PM", 
    "2020-08-27": "4:00PM", 
    "2020-08-28": "2:00PM", 
    "2020-08-29": "1:00PM"
  }
}

致：

我在pandas中使用的最初将数据帧转换为字典的代码如下所示

def buildDictionary():
    main_data = pd.read_csv('output.csv', delimiter=",", encoding='cp1252')
    nameDictionary = (main_data.groupby('Name')
       .apply(lambda x: dict(zip(x['Date'],x['Time'])))
       .to_dict())
    return nameDictionary

下面是一些csv数据

Name    Time    Date
FName LName 12:00PM     10/5/20
FName LName 12:00PM     10/5/20
FName LName 12:00PM     10/5/20
FName LName 12:00PM     10/5/20
FName LName 12:00PM     10/5/20
FName LName 12:00PM     10/5/20
FName LName 12:00PM     10/5/20

我希望它能回来

  "John Doe": {
    "2020-09-01": "4:00PM", 
    "2020-09-03": "8:00AM", 
    "2020-09-04": "2:00PM", 
    "2020-09-14": "8:00AM", 
    "2020-09-16": "6:00PM", 
    "2020-09-22": "5:00PM", 
    "2020-09-23": "2:00PM", 
    "2020-09-25": "1:00PM", 
    "2020-09-30": "5:00PM", 
    "2020-10-01": "8:00PM", 
    "2020-10-05": "5:00PM", 
    "2020-10-08": "1:00PM", 
    "2020-10-09": "5:00PM", 
    "2020-10-10": "4:00PM", 
    "2020-10-12": "5:00PM", 
    "2020-10-14": "7:00PM"
  } 

---

但为了做到这一点，我需要索引字典中的每一列。

这应该可以做到：

@app.route('/api/v1/resources/names', methods=['GET'])
def api_name():
    if 'name' in request.args:
        name = str(request.args['name'])
    else:
        return "Error: No name was provided, Please specify a first and last name"

    return jsonify({name: main_data[name]})

出现该错误的原因是for循环等效于：

for key in main_data.keys(): #looping over a dict is equivalent to looping over its keys
    index['Name'] = key
    if index == name:
        results.append(index)

。。。显然，您有一个名为

index

的全局变量，它是某个字符串

如果您修复了该问题，您将得到：

for key in main_data():
    if key == name:
        results.append(key)

。。。这与执行以下操作相同：

results = [name]

---

。。。然后将其转换为字符串，并将该字符串序列化为JSON，这意味着您的请求将返回

“['John Doe']”

（包括引号字符！）

请编辑您的问题，以显示您希望回复的内容

http://127.0.0.1:5000/api/v1/resources/names?name=John%20Doe

to.done@Jasmijn-ty谢谢你看我的问题

results = [name]