python selenium报错ValueError: Timeout value connect was ＜…＞, but it must be an int, float or None.

python selenium报错ValueError: Timeout value connect was ＜…＞, but it must be an int, float or None.

因更换系统，重新安装了selenium。命令：pip install selenium
默认版本为selenium4，版本不太兼容，所以卸载：pip uninstall selenium
更换为旧版本：pip install selenium==3.141.0
安装完以后显示：
Successfully installed selenium-3.141.0 urllib3-2.0.2（坑出现了）
运行一下代码以后报错：

from selenium import webdriver
driver = webdriver.Firefox()
driver.get(“https://www.baidu.com”)
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报错：
ValueError: Timeout value connect was <object object at 0x0000019A00694540>, but it must be an int, float or None.

其实是selenium版本和urllib3版本不兼容问题。更换urllib3版本：
pip uninstall urllib3
pip install urllib3==1.26.2
也可以更换selenium版本，参考以下文章：
https://blog.youkuaiyun.com/qq_48302722/article/details/130861992