关于使用 Selenium 和 Python 点击链接的问题

Question

I need your help... this is getting me crazy:

mydriver = webdriver.Chrome()
reg_url="https://etherscan.io/token/0x85f0e02cb992aa1f9f47112f815f519ef1a59e2da=0x0000000000000000000000000000000000000000"

mydriver.get(reg_url)
iframe = mydriver.find_element_by_xpath("//iframe[@id='tokentxnsiframe']") 
mydriver.switch_to.frame(iframe)

count_added = 0

while cond : 

    elems = mydriver.find_elements_by_xpath('//*[@id="maindiv"]/div[2]/table/tbody/tr/td[8]/a')

    #DOING THING WITH THE elems
mydriver.execute_script("window.scrollTo(0, document.body.scrollHeight)") 


    time.sleep(5)

    element = mydriver.find_element_by_xpath('//*[@id="maindiv"]/div[1]/nav/ul/li[4]/a')

    actions = webdriver.ActionChains(mydriver)
    actions.move_to_element(element).perform()
    time.sleep(5)
    actions.click().perform()

    time.sleep(5)

Page HTML is:

<div class="d-md-flex justify-content-between mb-4">
   <p class="mb-2 mb-md-0">
      <i id="spinwheel" class="fa fa-spin fa-spinner fa-1x fa-pulse mr-1" style="display: none;"></i>
      <i class="fa fa-sort-amount-desc mr-1" rel="tooltip" data-toggle="tooltip" title="" data-original-title="Oldest First"></i>A total of 9,725 transactions found
   </p>
   <nav aria-label="page navigation">
      <ul class="pagination pagination-sm mb-0">
         <li class="page-item disabled"><span class="page-link">First</span></li>
         <li class="page-item disabled"><span class="page-link"><i class="fa fa-chevron-left small"></i></span><span class="sr-only">Previous</span></li>
         <li class="page-item disabled"><span class="page-link text-nowrap">Page <strong class="font-weight-medium">1</strong> of <strong class="font-weight-medium">389</strong></span></li>
         <li class="page-item" data-toggle="tooltip" title="" data-original-title="Go to Next"><a class="page-link" href="javascript:move('generic-tokentxns2?contractAddress=0x85f0e02cb992aa1f9f47112f815f519ef1a59e2d&amp;mode=&amp;sid=4b6ef2c27b590c4f6cd4bef249b5ced6&amp;a=0x0000000000000000000000000000000000000000&amp;m=normal&amp;p=2')" aria-label="Next"><span aria-hidden="True"><i class="fa fa-chevron-right small"></i></span> <span class="sr-only">Next</span></a></li>
         <li class="page-item"><a class="page-link" href="javascript:move('generic-tokentxns2?contractAddress=0x85f0e02cb992aa1f9f47112f815f519ef1a59e2d&amp;mode=&amp;sid=4b6ef2c27b590c4f6cd4bef249b5ced6&amp;a=0x0000000000000000000000000000000000000000&amp;m=normal&amp;p=389')"><span aria-hidden="True">Last</span> <span class="sr-only">Last</span></a></li>
      </ul>
   </nav>
</div>

Basically I want the script to click on the next page link on the frame to go to the next page. Instead of going there, it's clicking to some random link. I've tried to get more specific on finding the link with mydriver.find_element_by_xpath('//a[@area-label="Next"]') but I get the same result.

Answer 1

Try to use xpath like that:

driver.find_element_by_xpath("(//a[@class='page-link' and @aria-label='Next'])[1]")

Answer 2

Try css selector below:

button = driver.find_element_by_css_selector("nav li[data-original-title="Go to Next"]>.page-link")

Answer 3

wait = WebDriverWait(mydriver, 10)
mydriver.get("https://etherscan.io/token/0x85f0e02cb992aa1f9f47112f815f519ef1a59e2d?a=0x0000000000000000000000000000000000000000")
wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR,"#btnCookie"))).click()
wait.until(EC.frame_to_be_available_and_switch_to_it("tokentxnsiframe"))
wait.until(EC.element_to_be_clickable((By.XPATH,"//a[@aria-label='Next']"))).click()

You should remove the element on top first and then switch to the iframe and click the next button.Also start using webdriver wait to ensure the stability of your programs instead of time.sleep().

Import

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

Outputs