使用 Chrome WebDriver 下载文件

Question

我需要从URL获取一些数据，但唯一的方法是通过下载。下面的代码适用于特定网站的某些实例，但其他时候它会打开浏览器，导航到网站，然后什么都没有。我已经尝试了WebDriverWait的各种实例，但这似乎并不重要。我希望有人能帮助我确定问题所在，因为我几乎迷路了。

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.common.exceptions import TimeoutException
bs_url = "https://baseballsavant.mlb.com/statcast_search?hfPT=&hfAB=&hfBBT=&hfPR=&hfZ=&stadium=&hfBBL=&hfNewZones=&hfGT=R%7C&hfC=&hfSea=2016%7C&hfSit=&player_type=batter&hfOuts=&opponent=&pitcher_throws=L&batter_stands=&hfSA=&game_date_gt=&game_date_lt=&team=&position=&hfRO=&home_road=&hfFlag=&metric_1=&hfInn=&min_pitches=0&min_results=0&group_by=name&sort_col=pitches&player_event_sort=h_launch_speed&sort_order=desc&min_abs=0#results"
driver = webdriver.Chrome()
driver.wait = WebDriverWait(driver, 5)
driver.get(bs_url)
driver.wait = WebDriverWait(driver, 5)
Stats = driver.find_element_by_id("table_all_pid_").click()
driver.wait = WebDriverWait(driver, 5)
driver.quit()

.HTML：

                >% of Pitches</th>
                <th colspan="1"></th>
                <th title="Create Chart Comparison" class="table-icon visual" id="compare_all_pid_"><img src="site-core/images/chart_curve.png" /></th>
                <th title="Download Results Comma Separated Values File" class="table-icon csv_table" id="table_all_pid_"><img src="site-core/images/disk.png" /></th>
                <th title="Download Data as Comma Separated Values File" class="table-icon csv" id="csv_all_pid_"><img src="site-core/images/database_link.png" /></th>
            </tr>
            </thead>

Answer 1

单击标题为">下载结果"逗号分隔值文件的元素，您可以使用以下代码块：

• css_selector ：

  driver.find_element_by_css_selector("th.table-icon.csv_table#table_all_pid_[title='Download Results Comma Separated Values File'] > img").click()
  

• xpath ：

  driver.find_element_by_xpath("//th[@class='table-icon csv_table' and @id='table_all_pid_' and @title='Download Data as Comma Separated Values File']/img").click()