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                ## Playwright 教程 **last update: 2022-06-06 10:23:11** ---- [TOC=3,8] ---- ### 背景 https://chromedriver.chromium.org/downloads [Pyppeteer:比selenium更高效的爬蟲界的新神器](https://baijiahao.baidu.com/s?id=1660869583480840819&wfr=spider&for=pc) > 然而,Selenium 以不可靠而著稱。Selenium 測試通常是不穩定的... ---- Pyppeteer 與 Playwright 的歷史: [開源爬蟲神器,Playwright vs Puppeteer 對比,你應該選擇哪個?_puppeteer safari_9點0頻道的博客-CSDN博客](https://blog.csdn.net/limingblogs/article/details/122425455) https://pypi.org/project/pyppeteer/ https://github.com/miyakogi/pyppeteer > Pyppeteer 已經轉移到 pyppeteer/pyppeteer https://github.com/pyppeteer/pyppeteer https://pyppeteer.github.io/pyppeteer/ > 注意:這個 repo 是無人維護的,很長時間以來一直沒有進行小的改動。請考慮將 **playwright-python** 作為替代方案。 > Unofficial Python port of [GoogleChrome/puppeteer](https://github.com/GoogleChrome/puppeteer) JavaScript (headless) chrome/chromium browser automation library. **puppeteer** JavaScript(無頭)chrome/chromium 瀏覽器自動化庫的**非官方 Python 端口**。 https://github.com/microsoft/playwright-python https://playwright.dev/python/ > Playwright 測試和自動化庫的 Python 版本。 https://github.com/microsoft/playwright https://playwright.dev > **Playwright** 是一個用于 Web 測試和自動化的框架。它允許使用單個 API 測試 Chromium、Firefox 和 WebKit。 Playwright 旨在實現常綠、功能強大、可靠且快速的跨瀏覽器 Web 自動化。(Microsoft 微軟開發) ---- https://github.com/GoogleChrome/puppeteer https://github.com/puppeteer/puppeteer https://pptr.dev/ > **Puppeteer** 是一個 Node.js 庫,它提供了一個高級 API 來通過 DevTools Protocol 控制 Chrome/Chromium。 Puppeteer 默認以無頭模式運行,但可以配置為以完整(“有頭”)Chrome/Chromium 模式運行。(Chrome DevTools 團隊開發) ---- ### 安裝 [Installation | Playwright Python](https://playwright.dev/python/docs/intro) ---- ### 簡單示例 ---- ### 攔截請求 ---- ### 攔截響應 ---- ### Locator 定位器**操作**會自動等待元素直至可見(直到匹配的元素附加到 DOM)。 https://playwright.dev/python/docs/api/class-page#page-wait-for-timeout https://playwright.dev/python/docs/api/class-locator#locator-wait-for https://playwright.dev/python/docs/actionability https://playwright.dev/python/docs/api/class-locatorassertions#locator-assertions-not-to-be-attached ```python from playwright.sync_api import sync_playwright, expect, TimeoutError as PlaywrightTimeoutError # not wait page.get_by_test_id("directions") # wait # Locator.click(timeout=3_000) page.get_by_test_id("directions").click(timeout=3_000) # wait # Locator.inner_text(timeout=3_000) page.get_by_test_id("directions").inner_text(timeout=3_000) page.get_by_test_id("directions").is_visible(timeout=3_000) page.get_by_test_id("directions").wait_for(timeout=3_000) # wait expect(page.locator(".class")).to_be_visible(timeout=3_000) ``` ### a https://zhuanlan.zhihu.com/p/623669043 目前市面上有不少類似于本案的產品,通過抓取各種內容平臺數據,進行數據整理、加工處理后推出相關產品,**長久做下去的必然是和官方有合作的**,單單依靠爬蟲進行數據采集的話,只要被平臺方發現,告上法庭,必然會構成不正當競爭的,搞不好還有破壞計算機系統罪,廣大爬蟲工程師們如果公司正在研發此類產品,**一定要確認是否與官方有合作**,多多關注業務的合法合規性,避免走上違法犯罪的道路。
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