在Python 2.7中使用Selenium选择按钮
在Python 2.7中使用Selenium选择按钮
提问于 2018-07-19 23:49:59
我正在抓取的一个网站最近更改了我使用的按钮ID。由于某种原因，我找不到新元素。我已经浏览了多个站点(包括Stack Overflow)来选择一个按钮，但没有一个我尝试过的。我几乎是Selenium的新手。下面是HTML摘录：
<div class="info">
<h4 class="store-number">
Store Number: {{=storeId}}
</h4>
{{ if (closeForEcommerce == 0 ) { }}
<button id="store-search-modal-make-this-my-store-{{=storeId}}" class="btn btn-make-this-my-store btn-block btn-primary-2 {{ if (ResultDisplayHelper.isMyStore(storeId)) { print("hidden"); } }}"
onclick="ResultDisplayHelper.setMyStoreMarker({{=storeId}});ResultDisplayHelper.setMyStore('store-search-modal-abc-store-card-info-', 'store-search-modal-make-this-my-store-', 'store-search-modal-my-store-', {{=storeId}})">
Make This My Store
</button>
{{ } }}
{{ if (closeForEcommerce != 0 ) { }}
<button id="btnStoreCloseForEcommerce" class="btn btn-store-temporarily-closed btn-block btn-primary-2 {{ if (ResultDisplayHelper.isMyStore(storeId)) { print("hidden"); } }}"
onclick="">
Store Temporarily Closed
</button>
{{ } }}
<a id="store-search-modal-my-store-{{=storeId}}" href="{{=clickUri}}" class="CoveoResultLink my-store btn btn-gray-300 btn-block {{ if (!ResultDisplayHelper.isMyStore(storeId)) { print("hidden"); } }}">
My Store
</a>
<a class="CoveoResultLink" href="{{=clickUri}}">Visit Store Page</a>
<div class="location">
{{ if (dist != null) { }}
<div><strong>Miles</strong>: {{=ResultDisplayHelper.metersToMiles(dist)}}</div>
{{ } }}
<address>
{{ if (shoppingcenter) { }}
{{=shoppingcenter}}<br/>
{{ } }}
{{=address1}}
{{ if (address2) { }}<br />{{=address2}} {{ } }}
<br />
{{=city}}, {{=state}} {{=zip}}
</address>
</div>我试过了
button_id = 'store-search-modal-make-this-my-store-'+shop
make_my_store = driver.find_element_by_id(button_id)和
make_my_store = driver.find_element_by_xpath("//button[contains(text(),'Make
This My Store')]")结果如下：
NoSuchElementException: no such element: Unable to locate element: {"method":"id","selector":"store-search-modal-make-this-my-store-231"}
(Session info: headless chrome=67.0.3396.99)
(Driver info: chromedriver=2.33.506120 (e3e53437346286c0bc2d2dc9aa4915ba81d9023f),platform=Windows NT 10.0.17134 x86_64)和
NoSuchElementException: no such element: Unable to locate element: {"method":"css selector","selector":"button[onclick^=ResultDisplayHelper]"}
(Session info: headless chrome=67.0.3396.99)
(Driver info: chromedriver=2.33.506120 (e3e53437346286c0bc2d2dc9aa4915ba81d9023f),platform=Windows NT 10.0.17134 x86_64)我遗漏了什么？
更新:感谢你到目前为止的建议。不幸的是，当我尝试多个变体时，我一直收到超时错误，因为找不到对象。我抓取了driver.page的源代码，然后看到：
<button id="make-this-my-store" class="btn btn-block btn-primary-2"
ng-show="model.store.storeId !== model.abcCartService.cart.pickupStore.storeId &&
model.store.closeForEcommerce !== 'True'" ng-click="model.makeMyStore();">
Make This My Store
</button>
我尝试使用XPATH查找"Make This - My - Store“，使用"make-this-my-store”作为按钮ID，使用"btn btn-block btn-primary-2“作为CSS类。所有这些都给出了找不到对象的错误。
回答 1
Stack Overflow用户
发布于 2018-07-20 00:08:24
尝试使用以下xpath：
button = browser.find_element_by_xpath("//button[@id='store-search-modal-make-this-my-store-{{=storeId}}']")
button.click() 现在，如果这不起作用，那么在查找元素之前，司机可能需要等待几秒钟。在这种情况下，我建议使用显式等待。有关显式等待的更多信息可以在这里= http://selenium-python.readthedocs.io/waits.html找到。
您可以包括显式等待，如下所示：
xpath = "//button[@id='store-search-modal-make-this-my-store-{{=storeId}}']"
button = WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, xpath))).click() 这意味着驱动程序将等待最多10秒，以使元素出现并可单击。如果驱动程序找不到该元素，它将抛出TimeoutException。您可以使用try/except块来处理TimeOutException。例如：
try:
xpath = "//button[@id='store-search-modal-make-this-my-store-{{=storeId}}']"
button = WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, xpath))).click()
except TimeoutException:
print("Button not found!") 您将需要以下导入：
import selenium.webdriver as 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希望这能有所帮助！
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原文链接：
https://stackoverflow.com/questions/51427008
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