在python问题

Question

我有两个.csv文件，其中我试图找到两者之间的完全匹配。

第一张是testnasdaq.csv，它包含：

Symbol
GOGO
WFTX
SYQD
B

第二张是mytickers.csv，它包含：

Symbol
GOGO
WFT
QD
S

我目前正在使用此代码，但它没有给出正确的结果，我似乎无法弄清楚为什么会这样。

import csv
import requests

nasdaqDatabase = r'C:\Users\Sterling\Desktop\StockProject\testnasdaq.csv'

with open(nasdaqDatabase, "r") as f:
    nasdaq_reader = csv.DictReader(f)
    nasdaq_symbols = set([row['Symbol'] for row in nasdaq_reader])
    with open(r'C:\Users\Sterling\Desktop\StockProject\mytickers.csv', 'r' ) as theFile:
        reader = csv.DictReader(theFile)
        for row in reader:
            if row['Symbol'] in nasdaq_symbols:
                print(row['Symbol'], 'FOUND')
                newAddress = 'blank.com/' + row['Symbol'] + '.htm'
                print(newAddress)

        else:
                print(row['Symbol'], 'NOT FOUND')
                newAddress = 'blank.com/' + row['Symbol'] + '.htm'
                print(newAddress)

我得到的输出是：

GOGO FOUND
blank.com/GOGO.htm
S NOT FOUND
blank.com/S.htm

Process finished with exit code 0

感谢任何帮助。

Answer 1

您将nasdaqDatabase作为文件打开但未读入可用的数据结构。试试这个：

import csv
import requests

nasdaqDatabase = r'C:\Users\Sterling\Desktop\StockProject\testnasdaq.csv'

with open(nasdaqDatabase, "r") as f:
    nasdaq_reader = csv.DictReader(f)
    nasdaq_symbols = set([row['Symbol'] for row in nasdaq_reader])
    with open(r'C:\Users\Sterling\Desktop\StockProject\mytickers.csv', 'r' ) as theFile:
        reader = csv.DictReader(theFile)
        for row in reader:
            if row['Symbol'] in nasdaq_symbols:
                print(row['Symbol'], 'FOUND')
                newAddress = 'http://eoddata.com/stockquote/NASDAQ/' + row['Symbol'] + '.htm'
                print(newAddress)
            else:
                print(row['Symbol'], 'NOT FOUND')
                newAddress = 'http://eoddata.com/stockquote/NYSE/' + row['Symbol'] + '.htm'
                print(newAddress)