Python 等待站点加载Selenium后如何从a href下载

背景：

我有一些Python Selenium代码，等待网站加载（有延迟）。加载网站后，我想单击href/下载链接

Python Selenium：

   browser = webdriver.Chrome('C:/full/path/to/chromedriver.exe')

   browser.get(MAIN_WEBSITE + pdf)
   delay = 20 # seconds
   try:
       myElem = WebDriverWait(browser, delay).until(EC.visibility_of_element_located((By.XPATH, "//*[@class='btn-group']")))
       print("Page is ready!")
       # Now the site is loaded - I can download the pdf - but I am stuck!

   except TimeoutException:
       print("Loading took too much time!")

加载后的HTML代码

<div class="btn-group">
<a type="button" class="btn btn-primary btn-user" onclick="AiD('182030801')" href="/download.pdf?id=182030801&amp;h=917901e6659ad5eb53970aecf687b53e&amp;u=cache&amp;ext=pdf" target="_blank" style="border-top-left-radius: 3px;border-bottom-left-radius: 3px;">
[...]
</div>

---

使用类似的方法获取pdf页面链接

import urllib

try:
     myElem = WebDriverWait(browser, delay).until(EC.visibility_of_element_located((By.XPATH, "//*[@class='btn-group']/a")))
     urllib.retrieve(driver.current_url+myElem.get_attribute('href'))     
except TimeoutException:
   print("Loading took too much time!")

---

Xpath最后需要一个/a和一个.click（）。@arundeepchohan我意识到-更改/更新了代码-但仍然不起作用：（可能需要使用myElem.getAttribute（'href'），而不是与driver.current\u url.just driver.get（driver.current\u url+myElem.getAttribute（'href'）结合使用）然后单击后面的下载链接。@arundeepchohan

print（myElem.getAttribute（href'））AttributeError:“WebElement”对象没有属性“getAttribute”

：：/我不认为urllib已经有了urlretrieve…已经有了，而且我认为如果我

，效果会更好。单击（）

按钮…..click（）但是有一个单击操作。onclick=“AiD（'182030801'）”我不能真正测试，所以请尝试一下。

import urllib

try:
     myElem = WebDriverWait(browser, delay).until(EC.visibility_of_element_located((By.XPATH, "//*[@class='btn-group']/a")))
     urllib.retrieve(driver.current_url+myElem.get_attribute('href'))     
except TimeoutException:
   print("Loading took too much time!")