我是使用Python进行网页抓取的新手。我的目的是检索所关注单词的动词。例如dictionary.com针对单词的不同词性定义，我想输入一个感兴趣的单词，然后点击搜索图标，在结果页面中，我想提取标题“动词”下的信息。
我为此安装了硒
但是我得到了错误：
WebDriverException: Message: invalid argument: can't kill an exited process.
我有Firefox版本> 60，Selenium 3.141.0，geckodriver 0.26和Python 2.7（与Python 3.3一起尝试，但得到相同的错误）。
from selenium import webdriver
from selenium.common.exceptions import TimeoutException
from selenium.webdriver.support.ui import WebDriverWait # available since 2.4.0
from selenium.webdriver.support import expected_conditions as EC # available since 2.26.0
# Create a new instance of the Firefox driver
driver = webdriver.Firefox()
我的geckodriver位于PATH定义的文件夹中
WebDriverExceptionTraceback (most recent call last)
<ipython-input-7-55833ccbae5a> in <module>()
8
9 # Create a new instance of the Firefox driver
---> 10 driver = webdriver.Firefox(executable_path=r'../webscraping/geckodriver')
11
12 # go to the google home page
../site-packages/selenium/webdriver/firefox/webdriver.pyc in __init__(self, firefox_profile, firefox_binary, timeout, capabilities, proxy, executable_path, options, service_log_path, firefox_options, service_args, desired_capabilities, log_path, keep_alive)
172 command_executor=executor,
173 desired_capabilities=capabilities,
--> 174 keep_alive=True)
175
176 # Selenium remote
../site-packages/selenium/webdriver/remote/webdriver.pyc in __init__(self, command_executor, desired_capabilities, browser_profile, proxy, keep_alive, file_detector, options)
155 warnings.warn("Please use FirefoxOptions to set browser profile",
156 DeprecationWarning, stacklevel=2)
--> 157 self.start_session(capabilities, browser_profile)
158 self._switch_to = SwitchTo(self)
159 self._mobile = Mobile(self)
../site-packages/selenium/webdriver/remote/webdriver.pyc in start_session(self, capabilities, browser_profile)
250 parameters = {"capabilities": w3c_caps,
251 "desiredCapabilities": capabilities}
--> 252 response = self.execute(Command.NEW_SESSION, parameters)
253 if 'sessionId' not in response:
254 response = response['value']
../site-packages/selenium/webdriver/remote/webdriver.pyc in execute(self, driver_command, params)
319 response = self.command_executor.execute(driver_command, params)
320 if response:
--> 321 self.error_handler.check_response(response)
322 response['value'] = self._unwrap_value(
323 response.get('value', None))
../site-packages/selenium/webdriver/remote/errorhandler.pyc in check_response(self, response)
240 alert_text = value['alert'].get('text')
241 raise exception_class(message, screen, stacktrace, alert_text)
--> 242 raise exception_class(message, screen, stacktrace)
243
244 def _value_or_default(self, obj, key, default):
WebDriverException: Message: invalid argument: can't kill an exited process