selenium.common.exceptions.WebDriverException：消息：“库”可执行文件可能对 ChromeDriver 具有错误的权限

Question

我想使用 chrome webdriver 连接到“ https://www.google.com ”。下面是代码。

from selenium import webdriver  
import time  

driver = webdriver.Chrome("C:\\Users\\faisal\\library")  
driver.set_page_load_timeout(10)  
driver.get("https://www.google.com")  
driver.find_element_by_name("q").send_keys(" automation by name ")  
driver.find_element_by_name("blink").click()  
time.sleep(5)  
driver.close()  

当我运行测试时，显示以下错误消息。这是一个权限问题

C:\Users\faisal\PycharmProjects\firstSeleniumTest2\venv\Scripts\python.exe C:/Users/faisal/PycharmProjects/firstSeleniumTest2/test.py
Traceback (most recent call last):
  File "C:\Users\faisal\PycharmProjects\firstSeleniumTest2\venv\lib\site-packages\selenium\webdriver\common\service.py", line 76, in start
    stdin=PIPE)
  File "C:\Python\lib\subprocess.py", line 709, in __init__
    restore_signals, start_new_session)
  File "C:\Python\lib\subprocess.py", line 997, in _execute_child
    startupinfo)
PermissionError: [WinError 5] Access is denied

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:/Users/faisal/PycharmProjects/firstSeleniumTest2/test.py", line 4, in <module>
    driver = webdriver.Chrome("C:\\Users\\faisal\\library")
  File "C:\Users\faisal\PycharmProjects\firstSeleniumTest2\venv\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 68, in __init__
    self.service.start()
  File "C:\Users\faisal\PycharmProjects\firstSeleniumTest2\venv\lib\site-packages\selenium\webdriver\common\service.py", line 88, in start
    os.path.basename(self.path), self.start_error_message)
selenium.common.exceptions.WebDriverException: Message: 'library' executable may have wrong permissions. Please see https://sites.google.com/a/chromium.org/chromedriver/home


Process finished with exit code 1

Answer 1

该错误说明了一切：

selenium.common.exceptions.WebDriverException: Message: 'library' executable may have wrong permissions. Please see https://sites.google.com/a/chromium.org/chromedriver/home

在您提到的代码块中：

driver = webdriver.Chrome("C:\\Users\\faisal\\library")

该错误清楚地表明您的程序正在将库视为ChromeDriver二进制文件。因此出现了错误。

但根据selenium.webdriver.chrome.webdriver的文档，对 的调用WebDriver()如下：

class selenium.webdriver.chrome.webdriver.WebDriver(executable_path='chromedriver', port=0, options=None, service_args=None, desired_capabilities=None, service_log_path=None, chrome_options=None)

因此，您需要将发送键 executable_path和值更改为单个 qoute 中的绝对路径''以及原始(r)开关，如下所示：

driver = webdriver.Chrome(executable_path=r'C:\Users\faisal\library\chromedriver.exe')

更新

根据 @Mangohero1 的反问，粗略executable_path是可选的，但如果您根据下面提供的源代码仅提供绝对路径，则绝对路径被视为Key的Value。 executable_path

class WebDriver(RemoteWebDriver):
    """
    Controls the ChromeDriver and allows you to drive the browser.

    You will need to download the ChromeDriver executable from
    http://chromedriver.storage.googleapis.com/index.html
    """

    def __init__(self, executable_path="chromedriver", port=0,
         options=None, service_args=None,
         desired_capabilities=None, service_log_path=None,
         chrome_options=None):
    """
    Creates a new instance of the chrome driver.

    Starts the service and then creates new instance of chrome driver.

    :Args:
     - executable_path - path to the executable. If the default is used it assumes the executable is in the $PATH

Answer 2

C:\Users\faisal\library不是 chromedriver 的正确路径。提供 chromedriver 文件的实际路径。