[英]Python selenium for write review google maps (selenium.common.exceptions.InvalidArgumentException: Message: invalid argument: invalid locator )
[英]Is CssSelector the only way I can use for shadowroot? selenium.common.exceptions.InvalidArgumentException: Message: invalid argument: invalid locator
CSS_SELECTOR 是我可以用來在 shadowroot 元素中查找元素的唯一方法嗎? 我正在使用 Python 3.10.1、Selenium (4.1.0) 鉻 (96.0.4664.110)。
下面是我的代碼
host = browser.find_element(By.ID, 'someid')
shadow_root = browser.execute_script('return arguments[0].shadowRoot', host)
goal = shadow_root.find_element(By.XPATH, '//*/button[@aria-label="Required"]')
如果我不使用By.CSS_SELECTOR
,我得到的錯誤如下。
Traceback (most recent call last):
File "C:\Files\Workspace\PostInstallVerify.py", line 787, in <module>
maxlenInput = getShadowElement(maxlenid, ".rwa-input")
File "C:\Files\Workspace\PostInstallVerify.py", line 272, in getShadowElement
goal = shadow_root.find_element(By.XPATH, '//*/button[@aria-label="Required"]')
File "C:\Users\Tomas.Tang\AppData\Local\Programs\Python\Python310\lib\site-packages\selenium\webdriver\remote\shadowroot.py", line 45, in find_element
return self._execute(Command.FIND_ELEMENT_FROM_SHADOW_ROOT, {"using": using, "value": value})['value']
File "C:\Users\Tomas.Tang\AppData\Local\Programs\Python\Python310\lib\site-packages\selenium\webdriver\remote\shadowroot.py", line 64, in _execute
return self.session.execute(command, params)
File "C:\Users\Tomas.Tang\AppData\Local\Programs\Python\Python310\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 424, in execute
self.error_handler.check_response(response)
File "C:\Users\Tomas.Tang\AppData\Local\Programs\Python\Python310\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 247, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.InvalidArgumentException: Message: invalid argument: invalid locator
(Session info: chrome=96.0.4664.110)
Stacktrace:
Backtrace:
Ordinal0 [0x00326903+2517251]
Ordinal0 [0x002BF8E1+2095329]
Ordinal0 [0x001C2848+1058888]
Ordinal0 [0x001ED5C4+1234372]
Ordinal0 [0x001ED68B+1234571]
Ordinal0 [0x001E3AE1+1194721]
Ordinal0 [0x0020650A+1336586]
Ordinal0 [0x001E3A36+1194550]
Ordinal0 [0x002065BA+1336762]
Ordinal0 [0x00215BBF+1399743]
Ordinal0 [0x0020639B+1336219]
Ordinal0 [0x001E27A7+1189799]
Ordinal0 [0x001E3609+1193481]
GetHandleVerifier [0x004B5904+1577972]
GetHandleVerifier [0x00560B97+2279047]
GetHandleVerifier [0x003B6D09+534521]
GetHandleVerifier [0x003B5DB9+530601]
Ordinal0 [0x002C4FF9+2117625]
Ordinal0 [0x002C98A8+2136232]
Ordinal0 [0x002C99E2+2136546]
Ordinal0 [0x002D3541+2176321]
BaseThreadInitThunk [0x766CFA29+25]
RtlGetAppContainerNamedObjectPath [0x773A7A9E+286]
RtlGetAppContainerNamedObjectPath [0x773A7A6E+238]
(No symbol) [0x00000000]
只需使用
.//button[@aria-label='Required']
Xpath 從一個元素需要一個。 不像其他人。
您可以通過任何常規定位器在 shadow DOM 中定位元素:CSS_SELECTOR、XPATH、ID、CLASS_NAME 等。
在這里,您嘗試使用無效的 XPath 表達式。
'//*/button[@aria-label="Required"]'
不是有效的 XPath 表達式。
我不知道您正在處理哪個頁面以及該元素的正確定位器是什么,但這至少是一個正確的 XPath 表達式,可能對您來說是正確的:
'//button[@aria-label="Required"]'
所以而不是
goal = shadow_root.find_element(By.XPATH, '//*/button[@aria-label="Required"]')
嘗試這個:
goal = shadow_root.find_element(By.XPATH, '//button[@aria-label="Required"]')
或者可能
goal = shadow_root.find_element(By.XPATH, './/button[@aria-label="Required"]')
不, css-selectors不是與shadowroot交互的唯一方式。
您的代碼試驗接近完美,但XPATH表達式不是有效的 xpath 表達式:
goal = shadow_root.find_element(By.XPATH, '//*/button[@aria-label="Required"]')
/*
不需要,因為//button
本身會在整個DOM Tree中查找按鈕標記。 實際上,您的代碼行將是:
goal = shadow_root.find_element(By.XPATH, '//button[@aria-label="Required"]')
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