python - "Permission Denied"错误废墟 Selenium 刮

Question

我一直在使用 Selenium(Python Webdriver)抓取一个网站。当我尝试将它作为 click() 选项时，我收到了权限被拒绝的错误。完整堆栈跟踪:

Traceback (most recent call last):
  File "scrape.py", line 19, in <module>
    subjectOptions[1].click()
  File "/Library/Python/2.7/site-packages/selenium/webdriver/remote/webelement.py", line 45, in click
    self._execute(Command.CLICK_ELEMENT)
  File "/Library/Python/2.7/site-packages/selenium/webdriver/remote/webelement.py", line 194, in _execute
    return self._parent.execute(command, params)
  File "/Library/Python/2.7/site-packages/selenium/webdriver/remote/webdriver.py", line 153, in execute
    self.error_handler.check_response(response)
  File "/Library/Python/2.7/site-packages/selenium/webdriver/remote/errorhandler.py", line 147, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: u"'Error: Permission denied for <http://localhost/scrape_test> to get property HTMLDocument.compatMode' when calling method: [wdIMouse::move]"

这是导致问题的代码。我知道我尝试单击的选项存在(基于 print):

from selenium import webdriver
from selenium.common.exceptions import TimeoutException
from selenium.webdriver.support.ui import WebDriverWait #available since 2.4.0
import time

# Create a new instance of the FireFox driver
driver = webdriver.Firefox()

# go to the local version of the page for testing
driver.get("http://localhost/scrape_test")

# Find the select by ID, get its options
selectElement = driver.find_element_by_id("CLASS_SRCH_WRK2_SUBJECT$65$")
subjectOptions = selectElement.find_elements_by_tag_name("option")

# Click the desired option
subjectOptions[1].click()

我在 Mac OS X 10.7.2 上使用 Firefox 8.0.1

Answer 1

看起来这是一个网络驱动程序错误。最新log entry来自上次修改其中一个 selenium 源代码文件的程序员说:

This leads to permissions errors, which I've still been unable to reduce:

Error: Permission denied for http://www.finn.no to get property HTMLDocument.compatMode' when calling method: [wdIMouse::move]

关于这个问题有一些讨论here , here和 here .

根据讨论，它应该可以与 Firefox 7 一起正常工作。另外，this related issue意味着尽管有错误，链接仍然被点击，所以它可能在 try/except 中工作。