assert_process_still_running() 和 WebDriverException：消息：服务 geckodriver 在 Raspberry Pi 中使用 SeleniumPython 意外退出错误

Question

由于这个问题，我有点沮丧，并且已经完全重新安装了我的 Raspberry Pi。我似乎无法让 geckodriver 工作。我收到以下错误消息。

pi@raspberrypi:~ $ python3
Python 3.9.2 (default, Mar 12 2021, 04:06:34)
[GCC 10.2.1 20210110] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from selenium import webdriver
>>> browser = webdriver.Firefox()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/pi/.local/lib/python3.9/site-packages/selenium/webdriver/firefox/webdriver.py", line 173, in __init__
    self.service.start()
  File "/home/pi/.local/lib/python3.9/site-packages/selenium/webdriver/common/service.py", line 98, in start
    self.assert_process_still_running()
  File "/home/pi/.local/lib/python3.9/site-packages/selenium/webdriver/common/service.py", line 110, in assert_process_still_running
    raise WebDriverException(
selenium.common.exceptions.WebDriverException: Message: Service geckodriver unexpectedly exited. Status code was: 1

Geckodriver 版本：

pi@raspberrypi:~ $ geckodriver -v
1645706311333   webdriver::httpapi      DEBUG   Creating routes
1645706311398   geckodriver     DEBUG   Listening on 127.0.0.1:4444

PATH

pi@raspberrypi:~ $ echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/games:/usr/games

我当然更新了 raspian。

感谢@unDetected Selenium 的回答。

我在 test.py 中尝试了以下操作，

import os
import psutil

PROCNAME = "geckodriver" # or chromedriver or IEDriverServer
for proc in psutil.process_iter():
    # check whether the process name matches
    if proc.name() == PROCNAME:
            print(PROCNAME)
            proc.kill()

from selenium import webdriver
browser = webdriver.Firefox()

但收到了相同的错误消息：

Traceback (most recent call last):
  File "/home/pi/test.py", line 12, in <module>
    browser = webdriver.Firefox()
  File "/home/pi/.local/lib/python3.9/site-packages/selenium/webdriver/firefox/webdriver.py", line 173, in __init__
    self.service.start()
  File "/home/pi/.local/lib/python3.9/site-packages/selenium/webdriver/common/service.py", line 98, in start
    self.assert_process_still_running()
  File "/home/pi/.local/lib/python3.9/site-packages/selenium/webdriver/common/service.py", line 110, in assert_process_still_running
    raise WebDriverException(
selenium.common.exceptions.WebDriverException: Message: Service geckodriver unexpectedly exited. Status code was: 1

你们知道为什么吗？我该如何解决这个问题？

多谢！

################ 更新

我尝试了以下代码：

import os
import psutil

PROCNAME = "geckodriver" # or chromedriver or IEDriverServer
for proc in psutil.process_iter():
    # check whether the process name matches
    if proc.name() == PROCNAME:
            proc.kill()

from selenium import webdriver
browser = webdriver.Firefox()

结果是相同的。同样的错误。

pi@raspberrypi:~ $ python3 test.py
Traceback (most recent call last):
  File "/home/pi/test.py", line 11, in <module>
    browser = webdriver.Firefox()
  File "/home/pi/.local/lib/python3.9/site-packages/selenium/webdriver/firefox/webdriver.py", line 173, in __init__
    self.service.start()
  File "/home/pi/.local/lib/python3.9/site-packages/selenium/webdriver/common/service.py", line 98, in start
    self.assert_process_still_running()
  File "/home/pi/.local/lib/python3.9/site-packages/selenium/webdriver/common/service.py", line 110, in assert_process_still_running
    raise WebDriverException(
selenium.common.exceptions.WebDriverException: Message: Service geckodriver unexpectedly exited. Status code was: 1

你有什么想法吗？

Answer 1

我遇到了类似的错误（除了状态代码为 -6 之外，同样的错误），但就我而言，这是因为我使用的是已弃用的浏览器驱动程序初始化（直接向 webdriver 提供可执行路径，而不是向其传递 Service 对象）。

而不是：

from selenium import webdriver

driver = webdriver.Firefox()

使用：

from selenium import webdriver
from selenium.webdriver.chrome.service import Service

DRIVER="geckodriver"
service = Service(executable_path=DRIVER)
driver = webdriver.Firefox(service=service)

请参阅 https://www .selenium.dev/documentation/webdriver/getting_started/install_drivers/#4-hard-coded-location

希望这可以帮助您或其他人。

Answer 2

此错误消息...

  File "/home/pi/.local/lib/python3.9/site-packages/selenium/webdriver/firefox/webdriver.py", line 173, in __init__
    self.service.start()
  File "/home/pi/.local/lib/python3.9/site-packages/selenium/webdriver/common/service.py", line 98, in start
    self.assert_process_still_running()
  File "/home/pi/.local/lib/python3.9/site-packages/selenium/webdriver/common/service.py", line 110, in assert_process_still_running
    raise WebDriverException(
selenium.common.exceptions.WebDriverException: Message: Service geckodriver unexpectedly exited. Status code was: 1

...暗示有 僵尸进程 GeckoDriver 仍然占用您的系统内存。

---

解决方案

始终在 tearDown(){} 方法中调用 driver.quit() 来关闭&优雅地销毁 WebDriver 和 Web Client 实例，以避免悬空的流程实例。

---

您可以在以下位置

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