问Selenium无法找到网页上的元素

EN

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.wait import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

# used this lib to update my chrome driver automatically
from webdriver_manager.chrome import ChromeDriverManager

opt = webdriver.ChromeOptions()

web = webdriver.Chrome(ChromeDriverManager().install(), options=opt)
web.get('https://www.usgs.gov/')


try:
    web.maximize_window()
    element = WebDriverWait(web, 10).until(
        EC.presence_of_element_located((By.CSS_SELECTOR, '#block-tools > div > p > a:nth-child(1)'))
    )
    element.click()

    # after click you need to switch to the new tab
    web.switch_to.window(web.window_handles[1])

    element = WebDriverWait(web, 10).until(
        EC.presence_of_element_located((By.CSS_SELECTOR, 'body > usgs-root > div > usgs-list > cdk-virtual-scroll-viewport > div.cdk-virtual-scroll-content-wrapper > usgs-download-button > div > button > span.mat-button-wrapper'))
    )
    element.click()

    # your css selector did not work so I changed it

    element = WebDriverWait(web, 10).until(
        EC.presence_of_element_located((By.CSS_SELECTOR, 'usgs-download-options > div.mat-dialog-content > ul > li:nth-child(2) > a'))
    )
    element.click()
finally:
    web.quit()

import csv
import requests

CSV_URL = 'https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/2.5_day.csv'

with requests.Session() as s:
    download = s.get(CSV_URL)

    decoded_content = download.content.decode('utf-8')

    cr = csv.reader(decoded_content.splitlines(), delimiter=',')
    my_list = list(cr)
    for row in my_list:
        print(row)

#             or write to file
    local_filename = CSV_URL.split('/')[-1]

    with open(local_filename, 'wb') as f:
        for chunk in download.iter_content(chunk_size=8192):
            # If you have chunk encoded response uncomment if
            # and set chunk_size parameter to None.
            # if chunk:
            f.write(chunk)