尝试启动Firefox时出现Python selenium错误

Question

尝试在ipython笔记本中使用Selenium打开Firefox时出错。我环顾四周，发现了类似的错误，但没有什么能与我得到的错误完全匹配。有人知道问题可能是什么以及我如何解决它？我正在使用Firefox 22。

我输入的代码如下：

from selenium import webdriver
driver = webdriver.Firefox()

代码返回的错误如下：

    WindowsError                              Traceback (most recent call last)
<ipython-input-7-fd567e24185f> in <module>()
----> 1 driver = webdriver.Firefox()

C:\Anaconda\lib\site-packages\selenium\webdriver\firefox\webdriver.pyc in __init__(self, firefox_profile, firefox_binary, timeout, capabilities, proxy)
     56         RemoteWebDriver.__init__(self,
     57             command_executor=ExtensionConnection("127.0.0.1", self.profile,
---> 58             self.binary, timeout),
     59             desired_capabilities=capabilities)
     60         self._is_remote = False

C:\Anaconda\lib\site-packages\selenium\webdriver\firefox\extension_connection.pyc in __init__(self, host, firefox_profile, firefox_binary, timeout)
     45         self.profile.add_extension()
     46 
---> 47         self.binary.launch_browser(self.profile)
     48         _URL = "http://%s:%d/hub" % (HOST, PORT)
     49         RemoteConnection.__init__(

C:\Anaconda\lib\site-packages\selenium\webdriver\firefox\firefox_binary.pyc in launch_browser(self, profile)
     45         self.profile = profile
     46 
---> 47         self._start_from_profile_path(self.profile.path)
     48         self._wait_until_connectable()
     49 

C:\Anaconda\lib\site-packages\selenium\webdriver\firefox\firefox_binary.pyc in _start_from_profile_path(self, path)
     71 
     72         Popen(command, stdout=PIPE, stderr=STDOUT,
---> 73               env=self._firefox_env).communicate()
     74         command[1] = '-foreground'
     75         self.process = Popen(

C:\Anaconda\lib\subprocess.pyc in __init__(self, args, bufsize, executable, stdin, stdout, stderr, preexec_fn, close_fds, shell, cwd, env, universal_newlines, startupinfo, creationflags)
    677                             p2cread, p2cwrite,
    678                             c2pread, c2pwrite,
--> 679                             errread, errwrite)
    680 
    681         if mswindows:

C:\Anaconda\lib\subprocess.pyc in _execute_child(self, args, executable, preexec_fn, close_fds, cwd, env, universal_newlines, startupinfo, creationflags, shell, p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite)
    894                                          env,
    895                                          cwd,
--> 896                                          startupinfo)
    897             except pywintypes.error, e:
    898                 # Translate pywintypes.error to WindowsError, which is

WindowsError: [Error 2] The system cannot find the file specified

Answer 1

在初始化Firefox()时尝试指定您的Firefox二进制文件

from selenium import webdriver
from selenium.webdriver.firefox.firefox_binary import FirefoxBinary

binary = FirefoxBinary('path/to/binary')
driver = webdriver.Firefox(firefox_binary=binary)

FirefoxDriver的默认路径是%PROGRAMFILES%\Mozilla Firefox\firefox.exe。见FirefoxDriver

或者将Firefox二进制文件的路径添加到Windows的PATH中。

Answer 2

当我在每次测试运行时设置环境变量export PYTHONDONTWRITEBYTECODE=1以摆脱pyc文件时，我得到了同样的错误。我能够通过更新selenium pip install --upgrade selenium来恢复变化。 OSX（10.10）

Answer 3

这是有效的：

apt-get update

apt-get install -y xorg xvfb firefox dbus-x11 xfonts-100dpi xfonts-75dpi xfonts-cyrillic

Answer 4

需要那两个包（ubuntu）！

apt-get update
apt-get install -y xorg xvfb firefox dbus-x11 xfonts-100dpi xfonts-75dpi xfonts-cyrillic

sudo apt-get install build-essential curl git m4 ruby texinfo libbz2-dev libcurl4-openssl-dev libexpat-dev libncurses-dev zlib1g-dev
sudo apt install linuxbrew-wrapper
brew install geckodriver

还有什么对我有用的是使用chrome而不是firefox检查本教程：https://christopher.su/2015/selenium-chromedriver-ubuntu/

Answer 5

    driver=webdriver.Firefox(executable_path="add geckodriver.exe",log_path=None)

Answer 6

您需要安装geckodriver：

https://selenium-python.readthedocs.io/installation.html

只需下载它，解压缩，然后将其复制到你的python目录......简单。