如何从Python中的Selenium web元素中提取内部元素？

Question

我正在尝试使用Selenium从该页面中提取股票符号并将其插入列表： https://www.barchart.com/stocks/highs-lows/highs?timeFrame=1y

我的代码：

StockList = []

driver = webdriver.Chrome()
url = "https://www.barchart.com/stocks/highs-lows/highs?timeFrame=1y"
driver.get(url)

stock_list = driver.find_elements_by_tag_name("tr")
for stock in stock_list:
    stock.find_element_by_name("data-current-symbol=")
    print(stock)

我收到一封NoSuchElementException

当我检查页面时，每个tr都有以下内容："data-current-symbol="ACY

我怎样才能拔出股票符号

Answer 1

使用此选择器：

tr[data-current-symbol]

并利用.get_attribute方法：

StockList = []

driver = webdriver.Chrome()
url = "https://www.barchart.com/stocks/highs-lows/highs?timeFrame=1y"
driver.get(url)

stock_list = driver.find_elements_by_css_selector("tr[data-current-symbol]")

for stock in stock_list:
    symbol = stock.get_attribute('data-current-symbol')
    print(symbol)
    StockList.append(symbol)