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chromedriver on mac

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最近在Mac上折腾selenium, 一直都装不上chromedriver.
今天终于找到了一个方法：

automationtest

曾今尝试过用npm安装，但是速度极其慢。(换了淘宝镜像)
chromedriver

最后的步骤是：

1.

1
npm install --save selenium-webdriver@2.44.0

2.

1
npm install --save chromedriver@2.12.0

然后实验了一个小程序，就可以了。

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from selenium import webdriver

import time  

drivers = ['HtmlUnit']   
  
dervers_time = {  
    'HtmlUnit' : 0,   
}
times = 50 

def run_with_Chrome():
    common_step(webdriver.Chrome())
'''
def run_with_FF():  
    common_step(webdriver.Firefox())  
      
def run_with_IE():  
    common_step(webdriver.Ie())  
  
def run_with_PhantomJS():  
    common_step(webdriver.PhantomJS(executable_path=r'C:\Python27\Scripts\phantomjs.exe'))  

def run_with_HtmlUnit():  
    driver = webdriver.Remote("http://localhost:4444/wd/hub",   
                                desired_capabilities=webdriver.DesiredCapabilities.HTMLUNIT)  
    common_step(driver)  
'''
def common_step(driver):  
    driver.get('http://www.baidu.com')  
    ele = driver.find_element_by_id('su')  
    print ele.get_attribute('value')  
    driver.quit()  
  
for i in range(times):  
    print '=============Times %s============' % i  
    for driver in drivers:  
        start = time.time()   
        print start  
#        eval('run_with_%s()'%driver)
        end = time.time()   
        print end  
        elapse_time = end-start  
        dervers_time[driver] += elapse_time  
        print 'elapse for %s:%s' % (driver, elapse_time)  
      
for k,v in dervers_time.items():  
    print 'avg elapse for %s in %s times:%s' % (k, times, v/times)