通过 Selenium - Python 在新选项卡中打开网址的最快方法是什么?

2022-01-15 00:00:00 python selenium selenium-chromedriver selenium-webdriver google-chrome

问题描述

我想创建一个python脚本来打开很多标签

I want to create a python script to open up a lot tabs 

import os
import selenium
from selenium import webdriver


driver =webdriver.Chrome('/usr/local/bin/chromedriver')
driver.execute_script("window.open('http://www.msn.com');")
driver.execute_script("window.open('http://www.cnn.com');")
driver.execute_script("window.open('http://www.yahoo.com');")
driver.execute_script("window.open('https://www.apple.com');")
driver.execute_script("window.open('https://www.google.com');")
driver.execute_script("window.open('https://www.stackoverflow.com');")

# driver.quit()

当我跑步时，我得到了

我现在拥有的是最快的方法吗?

Is what I have right now is the fastest way?

我曾经有过这个

# -*- coding: utf-8 -*-

import os
import selenium
from selenium import webdriver
from selenium.webdriver.common.keys import Keys

driver =webdriver.Chrome('/usr/local/bin/chromedriver')

#1
driver.get("http://msn.com")

#2
driver.find_element_by_tag_name('body').send_keys(Keys.COMMAND + 't')
driver.switch_to.window(driver.window_handles[-1])
driver.get("http://cnn.com")

#3
driver.find_element_by_tag_name('body').send_keys(Keys.COMMAND + 't')
driver.switch_to.window(driver.window_handles[-1])
driver.get("http://www.yahoo.com")

#4
driver.find_element_by_tag_name('body').send_keys(Keys.COMMAND + 't')
driver.switch_to.window(driver.window_handles[-1])
driver.get("https://www.apple.com")

#5
driver.find_element_by_tag_name('body').send_keys(Keys.COMMAND + 't')
driver.switch_to.window(driver.window_handles[-1])
driver.get("https://www.google.com")

#6
driver.find_element_by_tag_name('body').send_keys(Keys.COMMAND + 't')
driver.switch_to.window(driver.window_handles[-1])
driver.get("https://www.stackoverflow.com")

它可以工作，但它很痛苦慢.

It works but it is painfully slow.

我现在从 6 个开始，但我想加载 100 个标签.

I start with 6 now, but I want to load 100 tabs.

另外，我如何摆脱我的第一个奇怪的标签?我什至确定它为什么在那里.

Also, how do I get rid of my first weird looking tab? I am even sure why it is there.

解决方案

升级你MAC上的chromedriver(>2.25)/chrome浏览器(>55.0)，去掉空数据；标签.您可以使用 threading 或 multiprocessing 来加快处理速度.

Upgrade the chromedriver(>2.25)/chrome browser(>55.0) on your MAC to remove the empty data; tab. You can use threading or multiprocessing to speed up the process. 

from multiprocessing import Process
import os
import selenium
from selenium import webdriver
from selenium.webdriver.common.keys import Keys

driver =webdriver.Chrome('/usr/local/bin/chromedriver')
driver.get("http://msn.com")
def func1():
  print 'launching: MSN'
 driver.execute_script("window.open('http://www.msn.com');")

def func2():
  print 'launching: CNN'
  driver.execute_script("window.open('http://www.cnn.com');")

if __name__ == '__main__':
  p1 = Process(target=func1)
  p1.start()
  p2 = Process(target=func2)
  p2.start()
  p1.join()
  p2.join()

def runInParallel(*fns):
  proc = []
  for fn in fns:
    p = Process(target=fn)
    p.start()
    proc.append(p)
  for p in proc:
    p.join()

runInParallel(func1, func2)

取决于你有多少 CPU、机器的负载、计算机中发生的许多事情的时间都会影响线程/进程的启动时间.此外，由于进程在创建后立即启动，因此创建进程的开销也必须以您看到的时间差来计算.

Depending on how many CPUs you have, the load of the machine, the timing of many things happening in the computer will have an influence on the time the threads/process start. Also, since the processes are started right after creation, the overhead of creating a process also has to be calculated in the time difference you see.

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