Python selenium webdriver - 驱动程序突然出现 "dies"并且无法退出，获取 current_url，打开页面

Question

有时，在我的脚本中间，我的 webdriver 实例会死掉!

从那以后，我无法调用它的任何方法。

一些例子:

>>> spsel.driver.current_url
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 414, in current_url
    return self.execute(Command.GET_CURRENT_URL)['value']
  File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 151, in execute
    response = self.command_executor.execute(driver_command, params)
  File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/remote/remote_connection.py", line 280, in execute
    return self._request(url, method=command_info[0], data=data)
  File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/remote/remote_connection.py", line 321, in _request
    response = opener.open(request)
  File "/usr/lib/python2.6/urllib2.py", line 391, in open
    response = self._open(req, data)
  File "/usr/lib/python2.6/urllib2.py", line 409, in _open
    '_open', req)
  File "/usr/lib/python2.6/urllib2.py", line 369, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.6/urllib2.py", line 1161, in http_open
    return self.do_open(httplib.HTTPConnection, req)
  File "/usr/lib/python2.6/urllib2.py", line 1136, in do_open
    raise URLError(err)
urllib2.URLError: <urlopen error [Errno 111] Connection refused>



>>> spsel.driver.quit()

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/firefox/webdriver.py", line 55, in quit
    RemoteWebDriver.quit(self)
  File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 443, in quit
    self.execute(Command.QUIT)
  File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 151, in execute
    response = self.command_executor.execute(driver_command, params)
  File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/remote/remote_connection.py", line 280, in execute
    return self._request(url, method=command_info[0], data=data)
  File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/remote/remote_connection.py", line 321, in _request
    response = opener.open(request)
  File "/usr/lib/python2.6/urllib2.py", line 391, in open
    response = self._open(req, data)
  File "/usr/lib/python2.6/urllib2.py", line 409, in _open
    '_open', req)
  File "/usr/lib/python2.6/urllib2.py", line 369, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.6/urllib2.py", line 1161, in http_open
    return self.do_open(httplib.HTTPConnection, req)
  File "/usr/lib/python2.6/urllib2.py", line 1136, in do_open
    raise URLError(err)
urllib2.URLError: <urlopen error [Errno 111] Connection refused>

知道为什么会这样吗？有什么克服困难的最佳实践解决方案吗？

我正在考虑偶尔在 try block 中通过 driver.current_url 测试 active ，如果它抛出异常，则将驱动程序设置为 None，并且然后重新实例化它...但这是一个丑陋的 hack，我不明白为什么需要它。

Answer 1

在与 selenium 驱动程序和 FF 扩展分手的无休止斗争之后。我已将其完全删除。

我使用 http://www.phantomjs.org/这是 headless 的 JS 库。像魅力一样工作。 (如果你想看页面，你可以随时进行屏幕截图)

我主要在 ruby​​ 工作，所以:用 poltergeist 替换了 capybara-webkit(这只是 capybara 的 js_driver)

我很确定会有类似的解决方案。 也许这不能回答您的问题，但它会提供有关 js 测试的不同外观。