Playwigth安装和基本用法

1.安装playwright

pip install playwright

2.安装浏览器驱动文件(自动安装Chromium、Firefox、WebKit等浏览器的驱动文件)

python -m playwright install

 

3.录制命令codegen

通过python -m playwright codegen --help 可查看所有用法

查看里面的options含义：

-o:将录制的脚本保存到一个文件的文件名称

--target：指定生成的脚本语言，默认为python，目前支持python和JS

-b:指定浏览器驱动

例如：

使用谷歌浏览器打开百度搜索，脚本存放文件名称为open_baidu.py，指定脚本语言为python

命令是：

python -m playwright codegen --target python -o open_baidu.py -b chromium https://www.baidu.com

 

 输入命令后，自动打开浏览器进入百度页面，后续操作的行为都会进行录制，结束时自动将python脚本存放在open_baidu.py

生成脚本内容如下：

from playwright.sync_api import Playwright, sync_playwright, expect


def run(playwright: Playwright) -> None:
    browser = playwright.chromium.launch(headless=False)
    context = browser.new_context()

    # Open new page
    page = context.new_page()

    # Go to https://www.baidu.com/
    page.goto("https://www.baidu.com/")

    # Click input[name="wd"]
    page.locator("input[name=\"wd\"]").click()

    # Fill input[name="wd"]
    page.locator("input[name=\"wd\"]").fill("李文吉")

    # Click text=百度一下
    page.locator("text=百度一下").click()
    # expect(page).to_have_url("https://www.baidu.com/s?ie=utf-8&f=8&rsv_bp=1&rsv_idx=1&tn=baidu&wd=%E6%9D%8E%E6%96%87%E5%90%89&fenlei=256&rsv_pq=c84c4e7200038459&rsv_t=3df1jE2dzIn%2B%2B8YrwSHy0GecsMRRENBqKaNMLIEN8GUm4K9thFDdW4FnGL0&rqlang=cn&rsv_enter=0&rsv_dl=tb&rsv_sug3=13&rsv_sug1=12&rsv_sug7=100&rsv_btype=i&prefixsug=%25E6%259D%258E%25E6%2596%2587%25E5%2590%2589&rsp=3&inputT=7430&rsv_sug4=9727")

    # Click text=李文吉lee的微博_微博
    # with page.expect_navigation(url="https://weibo.com/u/2472235200"):
    with page.expect_navigation():
        with page.expect_popup() as popup_info:
            page.locator("text=李文吉lee的微博_微博").click()
        page1 = popup_info.value

    # Go to https://weibo.com/u/2472235200
    page1.goto("https://weibo.com/u/2472235200")

    # Click text=热门微博
    # with page1.expect_navigation(url="https://weibo.com/hot/weibo/102803"):
    with page1.expect_navigation():
        page1.locator("text=热门微博").click()
    # expect(page1).to_have_url("https://weibo.com/")

    # Click .LoginPop_btn_31Lh2
    page1.locator(".LoginPop_btn_31Lh2").click()

    # Close page
    page1.close()

    # Close page
    page.close()

    # ---------------------
    context.close()
    browser.close()


with sync_playwright() as playwright:
    run(playwright)

4. 支持同步

'''
project_name:AutoTestSelenium
name:playwright_test
time:2022/4/23-13:20'''
from playwright.sync_api import sync_playwright, Playwright
from playwright.async_api import async_playwright
import time
import asyncio

# 同步实例1
def sync_open_baidu(playwright: Playwright) -> None:
    browser = playwright.chromium.launch(headless=False)  # headless 默认时True:无头浏览器
    context = browser.new_context()
    page = context.new_page()

    page.goto(url='http://www.baidu.com')
    time.sleep(5)
    page.locator('//input[@id="kw"]').fill('李文吉')
    time.sleep(5)
    page.locator('text=百度一下').click()
    time.sleep(5)
    print(page.title())
    browser.close()

# 同步实例2
def sync_open_dyj(playwright: Playwright) -> None:
    browser = playwright.chromium.launch(headless=False)  # headless 默认时True:无头浏览器
    context = browser.new_context()
    page = context.new_page()

    page.goto(url='http://www.baidu.com')
    time.sleep(5)
    page.locator('//input[@id="kw"]').fill('邓亚娟')
    time.sleep(5)
    page.locator('text=百度一下').click()
    time.sleep(5)
    print(page.title())
    browser.close()



if __name__ == '__main__':

    # 同步方式调用
    with sync_playwright() as playwright:
        sync_open_baidu(playwright)
        sync_open_dyj(playwright)

 

5.支持异步

 

'''
project_name:AutoTestSelenium
name:playwright_test
time:2022/4/23-13:20

'''
from playwright.sync_api import sync_playwright, Playwright
from playwright.async_api import async_playwright
import time
import asyncio


#方式1：异步实例1
async def async_open_baidu():
    async with async_playwright() as playwright:
        browser = await playwright.chromium.launch(headless=False)
        page = await browser.new_page()
        await page.goto('http://www.baidu.com')
        await page.locator('//input[@id="kw"]').fill('李文吉')
        await page.locator('text=百度一下').click()
        print(await page.title())
        await browser.close()

#方式1：异步实例2
async def async_open_dyj():
    async with async_playwright() as playwright:
        browser = await playwright.chromium.launch(headless=False)
        page = await browser.new_page()
        await page.goto('http://www.baidu.com')
        await page.locator('//input[@id="kw"]').fill('邓亚娟')
        await page.locator('text=百度一下').click()
        print(await page.title())
        await browser.close()

#方式2异步 实例创建page对象
async def run(url):
    async with async_playwright() as playwright:
        # create a chromium browser instance
        chromium = playwright.chromium
        # browser = await chromium.launch()
        # create a bowser instance which headless is true
        browser = await chromium.launch(headless=False)
        # create two isolated browser contexts
        user_context = await browser.new_context()
        page = await user_context.new_page()
        await page.goto(url)
        # await page2.goto('https://www.baidu.com')

#方式2异步实例调用
async def main():
    tasks = []
    urls = ['https://www.baidu.com', 'https://www.taobao.com', 'https://www.jd.com']
    for url in urls:
        task = asyncio.ensure_future(run(url))
        tasks.append(task)
    await asyncio.gather(*tasks)


if __name__ == '__main__':
    # 方式2异步调用
    # asyncio.run(main())
    # 方式1异步调用
    # ren = [async_open_baidu(), async_open_dyj()]
    # loops = asyncio.get_event_loop()
    # loops.run_until_complete(asyncio.wait(ren))