安装

1. Selenium

   sudo pip install selenium
   

2. PhantomJS

   brew install phantomjs
   

3. 下载chromedriver
   http://chromedriver.storage.googleapis.com/index.html
   我这下载的chromedriver_mac64.zip，将解压后的chromedriver移动到/usr/local/bin目录下 。

   示例

   # -*- coding: utf-8 -*-
   from selenium import webdriver
   import time
   def login(username,pwd):
    driver = webdriver.PhantomJS()
    # driver = webdriver.Chrome()
    driver.get("http://mail.163.com")
    print "浏览器最大化"
    driver.maximize_window()  #将浏览器最大化显示
    driver.set_window_size(1000, 800)  #参数数字为像素点
    # wait = ui.WebDriverWait(driver, 60)
    # wait.until(lambda dr: dr.find_element_by_name('email').is_displayed())
    #selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element: {"method":"name","selector":"email"}
    # 因为登录窗口变成了iframe
    frame = driver.find_element_by_xpath('//iframe[@id="x-URS-iframe"]')
    driver.switch_to.frame(frame)
    time.sleep(1)
    driver.find_element_by_name("email").send_keys(username)
    driver.find_element_by_name("password").send_keys(pwd)
    driver.find_element_by_id("dologin").click()
    # wait.until(lambda dr: dr.find_element_by_id('login_area').is_displayed())
    #返回(后退)
    # driver.back()
    #前进
    # driver.forward()
    time.sleep(3)
    #截屏
    driver.save_screenshot('screen.png')
    driver.quit()
   #执行该文件的主过程
   if __name__ == '__main__':
    login("username","password")
   

如果你运行了上面的程序，可能会报错，那就来瞧瞧这个帖子吧selenium +phantomjs 登录126邮箱 iframe定位问题

参考
http://selenium-python.readthedocs.io/installation.html
Docker环境下运行Python + Selenium + Chrome