Question

我正在编写代码以对某些股票进行分析，并将所有数据存储在字典中。当我遍历“ .csv”文件时，print语句给出了正确的输出，但是使用与print语句相同的变量的字典却很奇怪。代码：

def checkDbForReqData(self):
    for stock in self.stocks:
        self.cursor.execute(query.selectQuery("*",stock))
        data = self.cursor.fetchall()
        if(len(data) < 20):
            print(" Not enough data for: %s" % (stock))
            self.downloadData(stockName=stock,condition=True)
            x = datetime.date.today()
            fromDate = x.strftime("%d") + "-" + x.strftime("%m") + "-" + x.strftime("%Y")
            toDate   = (x - datetime.timedelta(days = 25)).strftime("%d") + "-" + (x - datetime.timedelta(days = 25)).strftime("%m") + "-" + (x - datetime.timedelta(days = 25)).strftime("%Y")
            fileName = str(toDate) + "-TO-" + str(fromDate) + stock + "EQN.csv"
            with open("../../fileDump/"+fileName) as theFile:
                print(" Opened: " + fileName)
                reader = csv.DictReader(theFile)
                finalDict = {}
                localDict = {}
                #The part where I'm running into problems
                for row in reader:
                    print(row['Series'],row['Date'],row['Turnover'],row['Total Traded Quantity'],(float(row['Turnover'])/float(row['Total Traded Quantity'])))
                    localDict.update({"Series"                  : row['Series']})
                    localDict.update({"Turnover"                : row['Turnover']})
                    localDict.update({"Total Traded Quantity"   : row['Total Traded Quantity']})
                    localDict.update({"VWAP"                    : (float(row['Turnover'])/float(row['Total Traded Quantity']))})
                    finalDict.update({row["Date"] : localDict})
                print(json.dumps(finalDict))

print语句给出正确的输出：

Opened: 03-02-2019-TO-28-02-2019BELEQN.csv
EQ 04-Feb-2019            311906105.50     3762635 82.89565836175977
EQ 05-Feb-2019            427175618.30     5285262 80.82392477421176
EQ 06-Feb-2019            506919711.85     6294987 80.52752322602096
EQ 07-Feb-2019            440903683.10     5396444 81.7026329004804
EQ 08-Feb-2019            279516827.60     3458045 80.83088207354156
EQ 11-Feb-2019            622475430.75     8090201 76.94189931127792
EQ 12-Feb-2019            686804293.65     8781184 78.21317645205932
EQ 13-Feb-2019            693049047.25     9081481 76.3145402440417
EQ 14-Feb-2019           1330591632.15    17860130 74.50066892850164
EQ 15-Feb-2019            752767295.85    10021141 75.11792278444142
EQ 18-Feb-2019            309558993.45     4102420 75.457655103573
EQ 19-Feb-2019            433956845.90     5698562 76.15199166035221
EQ 20-Feb-2019            969747107.30    12525521 77.42169825111466
EQ 21-Feb-2019            375559870.05     4870359 77.11133204964973
EQ 22-Feb-2019            816862761.70    10396045 78.57437724634705
EQ 25-Feb-2019           1742414944.05    22009380 79.16692537681661
EQ 26-Feb-2019           1209307010.10    15257415 79.26028164666164
EQ 27-Feb-2019           1157652436.70    14278303 81.07773288604396

但是我的字典看起来像这样：

    {
  "04-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  },
  "05-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  },
  "06-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  },
  "07-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  },
  "08-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  },
  "11-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  },
  "12-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  },
  "13-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  },
  "14-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  },
  "15-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  },
  "18-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  },
  "19-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  },
  "20-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  },
  "21-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  },
  "22-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  },
  "25-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  },
  "26-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  },
  "27-Feb-2019": {
    "Series": "EQ",
    "Turnover": "          1157652436.70",
    "Total Traded Quantity": "   14278303",
    "VWAP": 81.07773288604396
  }
}

键具有正确的值，但dict_values都相同，我在这里看不到错误之处。我很抱歉，如果这是一个非常基本的错误。

python3中for循环中字典的异常行为

0 个答案: