python palywright庫基本使用

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開源方：微軟

安裝：pip install playwright；python -m playwright install

特點：自動化腳本錄制；有同步、異步api

生成代碼指令：python -m playwright codegen
其他：需要Python 3.7及以上；官方api為node版本，python版本待補充

同步：關鍵字為：sync_playwright

from time import sleep
from playwright import sync_playwright
with sync_playwright() as p:
  for browser_type in [p.chromium, p.firefox, p.webkit]:
    browser = browser_type.launch(headless=False) # 默認無頭，這樣為有頭模式
    page = browser.newPage()
    page.goto('http://baidu.com')
    page.fill("input[name=\"wd\"]", "AirPython")
    with page.expect_navigation():
      page.press("input[name=\"wd\"]", "Enter")
    page.waitForSelector("text=百度熱榜")
    page.screenshot(path=f'example-{browser_type.name}.png')
    sleep(5)
    browser.close()

異步：關鍵字為：async_playwright

import asyncio
from playwright import async_playwright
async def main():
  async with async_playwright() as p:
    for browser_type in [p.chromium, p.firefox, p.webkit]:
      browser = await browser_type.launch(headless=False)
      page = await browser.newPage()
      await page.goto('http://baidu.com')
      await page.fill("input[name=\"wd\"]", "AirPython")
      await page.press("input[name=\"wd\"]", "Enter")
      await page.waitForSelector("text=百度熱榜")
      await page.screenshot(path=f'example-{browser_type.name}.png')
      await browser.close()
asyncio.get_event_loop().run_until_complete(main())

集成 pytest 測試

@pytest.fixture(scope="session")
def test_playwright_is_visible_on_google(page):
  page.goto("https://www.google.com")
  page.type("input[name=q]", "Playwright GitHub")
  page.click("input[type=submit]")
  page.waitForSelector("text=microsoft/Playwright")

執行 JS 代碼

from playwright import sync_playwright
with sync_playwright() as p:
  browser = p.firefox.launch()
  page = browser.newPage()
  page.goto('https://www.example.com/')
  dimensions = page.evaluate('''() => {
  return {
      width: document.documentElement.clientWidth,
      height: document.documentElement.clientHeight,
      deviceScaleFactor: window.devicePixelRatio
      }  }''')
  print(dimensions)
  browser.close()

中斷網絡請求

from playwright import sync_playwright
with sync_playwright() as p:
  browser = p.chromium.launch()
  page = browser.newPage()

def log_and_continue_request(route, request):
  print(request.url)
  route.continue_()

記錄並繼續所有網絡請求

page.route('**', lambda route, request: log_and_continue_request(route, request))
page.goto('http://todomvc.com')
browser.close()

以上就是python palywright庫基本使用的詳細內容，更多關於python palywright庫的資料請關註WalkonNet其它相關文章！

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