selenium3打开chrome浏览器,firefox

import os
from selenium import webdriver

chromedriver = "C:Program Files (x86)GoogleChromeApplicationchromedriver.exe"
os.environ["webdriver.chrome.driver"] = chromedriver
driver = webdriver.Chrome(chromedriver)

driver.get("http://www.baidu.com")

driver.find_element_by_id("kw").send_keys("Selenium2")
driver.find_element_by_id("su").click()

　　

import os
from selenium import webdriver

chromedriver = "C:Program Files (x86)GoogleChromeApplicationchromedriver.exe"
os.environ["webdriver.chrome.driver"] = chromedriver
driver = webdriver.Chrome(chromedriver)

driver.get("http://www.baidu.com")

driver.find_element_by_id("kw").send_keys("Selenium2")
driver.find_element_by_id("su").click()

selenium.common.exceptions.WebDriverException: Message: Expected browser binary location, but unable to find binary in default location, 
no 'moz:firefoxOptions.binary' capability provided, and no binary flag set on the command line

指定Firefox浏览器程序路径

from selenium.webdriver.firefox.firefox_binary import FirefoxBinary

binary = FirefoxBinary('path')

driver = webdriver.Firefox(firefox_binary=binary)

driver.get("http://www.baidu.com")

driver.find_element_by_id("kw").send_keys("Selenium2")
driver.find_element_by_id("su").click()

 浏览器记录密码，加载配置免登陆：

1.Firefox

profileDir = r'C:UsersAdministratorAppDataRoamingMozillaFirefoxProfileshkehfoij.default'

profile = webdriver.FirefoxProfile(profileDir)

driver = webdriver.Firefox(profile)

2.Chrome

option = webdriver.ChromeOptions()

option.add_argument('--usr-data-dir=C:UsersAdministratorAppDataLocalGoogleChromeUser Data')

driver = webdriver.Chrome(chrome_options=option)

谷歌驱动下载地址：

http://chromedriver.storage.googleapis.com/index.html

对应版本：

v2.21  v46-50

v2.22  v49-52

v2.23  v51-53

v2.24  v52-57

v2.25  v53-55

v2.26  v53-55

v2.27  v54-56

v2.28  v55-57

v2.29  v56-58