“无法找到匹配的功能集". -Selenium与Python 2.7

问题描述

在Python 2.7和Firefox Portable 54(64位)中使用Selenium 3.8.1，运行此脚本时出现以下错误消息:

Using Selenium 3.8.1 with Python 2.7 with Firefox Portable 54, 64 bit, I get the following error message when running this script:

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

binary_argument = FirefoxBinary(r'C:\Users\[removed]\FirefoxPortable.exe')
driver = webdriver.Firefox(firefox_binary=binary_argument)

driver.get("http://icanhazip.com")

.

Traceback (most recent call last):
  File "F:/cp/python-selenium3/ToyScripts/launch_portable_browser.py", line 5, in <module>
    driver = webdriver.Firefox(firefox_binary=binary_argument)
  File "C:\ProgramData\Anaconda2\envs\automation2\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 162, in __init__
    keep_alive=True)
  File "C:\ProgramData\Anaconda2\envs\automation2\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 154, in __init__
    self.start_session(desired_capabilities, browser_profile)
  File "C:\ProgramData\Anaconda2\envs\automation2\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 243, in start_session
    response = self.execute(Command.NEW_SESSION, parameters)
  File "C:\ProgramData\Anaconda2\envs\automation2\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 312, in execute
    self.error_handler.check_response(response)
  File "C:\ProgramData\Anaconda2\envs\automation2\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.SessionNotCreatedException: Message: Unable to find a matching set of capabilities

在闪屏消失之前，我确实看到了片刻.另外值得注意的是，手动使用浏览器时可以正常工作.

I do see the splash screen for a moment before it disappears. Also worth noting is that the browser works fine when used manually.

我怀疑便携式浏览器需要切换一些设置以允许Selenium接管，但这是我所知道/怀疑的程度.

I suspect that the portable browser needs some settings switched to allow Selenium to take over, but that is the extent of what i know/suspect.

谢谢您的帮助.

推荐答案

通过修改DesiredCapabilities解决:

Solved by modifying DesiredCapabilities:

from selenium import webdriver
from selenium.webdriver.firefox.firefox_binary import FirefoxBinary
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities

binary_argument = FirefoxBinary(r'C:\Users\[removed]\FirefoxPortable.exe')

capabilities_argument = DesiredCapabilities().FIREFOX
capabilities_argument["marionette"] = False

driver = webdriver.Firefox(firefox_binary=binary_argument, capabilities=capabilities_argument)

driver.get("http://icanhazip.com")

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