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    【已解决】Mac中安装Python版Playwright和初始化开发环境

    Python crifan 1741浏览 0评论
    折腾：
    【未解决】Mac中用playwright自动操作浏览器实现百度搜索
    期间，参考Python版Playwright的官网教程：
    microsoft/playwright-python: Python version of the Playwright testing and automation library. (github.com)
    去Mac中搭建开发环境和初始化。
     xxx@xx  ~/dev/crifan/python/BaiduSearchAutomation/playwright  pip install playwright
Collecting playwright
  Downloading playwright-1.10.0-py3-none-macosx_10_13_x86_64.whl (17.8 MB)
     |████████████████████████████████| 17.8 MB 2.4 MB/s 
Collecting greenlet==1.0.0
  Downloading greenlet-1.0.0-cp38-cp38-macosx_10_14_x86_64.whl (86 kB)
     |████████████████████████████████| 86 kB 2.5 MB/s 
Collecting typing-extensions; python_version <= "3.8"
  Downloading typing_extensions-3.7.4.3-py3-none-any.whl (22 kB)
Collecting pyee>=8.0.1
  Downloading pyee-8.1.0-py2.py3-none-any.whl (12 kB)
Installing collected packages: greenlet, typing-extensions, pyee, playwright
Successfully installed greenlet-1.0.0 playwright-1.10.0 pyee-8.1.0 typing-extensions-3.7.4.3
    去看看：
     which playwright
/Users/xxx/.pyenv/shims/playwright
    和：
     playwright --help        
Usage: npx playwright [options] [command]


Options:
  -V, --version                          output the version number
  -h, --help                             display help for command


Commands:
  open [options] [url]                   open page in browser specified via -b, --browser
  codegen [options] [url]                open page and generate code for user actions
  debug <app> [args...]                  run command in debug mode: disable timeout, open inspector
  install [browserType...]               ensure browsers necessary for this version of Playwright are installed
  install-deps [browserType...]          install dependencies necessary to run browsers (will ask for sudo permissions)
  cr [options] [url]                     open page in Chromium
  ff [options] [url]                     open page in Firefox
  wk [options] [url]                     open page in WebKit
  screenshot [options] <url> <filename>  capture a page screenshot
  pdf [options] <url> <filename>         save page as pdf
  help [command]                         display help for command
    接着去初始化安装：
     playwright install
Downloading chromium v857950 - 113.9 Mb [                    ] 1% 384.5s
    等待
    官网
    Fast and reliable end-to-end testing for modern web apps | Playwright
    Getting Started | Playwright
    Getting Started | Playwright
    Playwright | Playwright
    Community Showcase | Playwright
    安装完毕：
     playwright install
Downloading chromium v857950 - 113.9 Mb [====================] 100% 0.0s 
chromium v857950 downloaded to /Users/xxx/Library/Caches/ms-playwright/chromium-857950
Downloading firefox v1238 - 75 Mb [====================] 100% 0.0s 
firefox v1238 downloaded to /Users/xxx/Library/Caches/ms-playwright/firefox-1238
Downloading webkit v1443 - 52 Mb [====================] 100% 0.0s 
webkit v1443 downloaded to /Users/xxx/Library/Caches/ms-playwright/webkit-mac10.14-special-1443
Downloading ffmpeg v1005 - 1.3 Mb [====================] 100% 0.0s 
ffmpeg v1005 downloaded to /Users/xxx/Library/Caches/ms-playwright/ffmpeg-1005
    去写代码：
    # Function: Playwright demo baidu search
# Author: Crifan Li
# Update: 20210331


from playwright.sync_api import sync_playwright


with sync_playwright() as p:
    chromiumBrowser = p.chromium
    browser = chromiumBrowser.launch()
    page = browser.new_page()
    page.goto('http://www.baidu.com')
    page.screenshot(path=f'example_chromium.png')
    browser.close()
    调试看看
    是有：
    <BrowserType name=chromium executable_path=/Users/xxx/Library/Caches/ms-playwright/chromium-857950/chrome-mac/Chromium.app/Contents/MacOS/Chromium>
    的
    继续调试。
    代码：
    from playwright.sync_api import sync_playwright


with sync_playwright() as p:
    chromiumBrowserType = p.chromium
    print("chromiumBrowserType=%s" % chromiumBrowserType)
    browser = chromiumBrowserType.launch()
    # chromiumBrowserType=<BrowserType name=chromium executable_path=/Users/xxx/Library/Caches/ms-playwright/chromium-857950/chrome-mac/Chromium.app/Contents/MacOS/Chromium>
    print("browser=%s" % browser)
    # browser=<Browser type=<BrowserType name=chromium executable_path=/Users/xxx/Library/Caches/ms-playwright/chromium-857950/chrome-mac/Chromium.app/Contents/MacOS/Chromium> version=90.0.4430.0>
    page = browser.new_page()
    print("page=%s" % page)
    # page=<Page url='about:blank'>
    page.goto('http://www.baidu.com')
    print("page=%s" % page)
    # page=<Page url='https://www.baidu.com/'>
    page.screenshot(path=f'example_chromium.png')
    browser.close()
    输出：
    chromiumBrowserType=<BrowserType name=chromium executable_path=/Users/xxx/Library/Caches/ms-playwright/chromium-857950/chrome-mac/Chromium.app/Contents/MacOS/Chromium>
browser=<Browser type=<BrowserType name=chromium executable_path=/Users/xxx/Library/Caches/ms-playwright/chromium-857950/chrome-mac/Chromium.app/Contents/MacOS/Chromium> version=90.0.4430.0>
page=<Page url='about:blank'>
page=<Page url='https://www.baidu.com/'>
    说明正常能跑了。初始化结束了。
    不过要搞清楚，如何显示浏览器，即非无头模式：
    看到官网
    microsoft/playwright-python: Python version of the Playwright testing and automation library. (github.com)
    “# Use playwright.chromium, playwright.firefox or playwright.webkit
    # Pass headless=False to see the browser UI”
    去试试：
    browser = chromiumBrowserType.launch(headless=False)
    结果：
    是可以启动Chromium浏览器的。
    继续，是可以看到打开了百度首页的：
    【总结】
    此处Mac中初始化Python版Playwright环境：
    安装playwright：
    pip install playwright
    初始化playwright，去安装浏览器内核：
    playwright install
    此处下载安装了：
    • chromium
      • 位置：/Users/xxx/Library/Caches/ms-playwright/chromium-857950
      • 效果：
    • firefox
      • 位置：/Users/xxx/Library/Caches/ms-playwright/firefox-1238
      • 效果：
    • webkit
      • 位置：/Users/xxx/Library/Caches/ms-playwright/webkit-mac10.14-special-1443
      • 效果：
    • ffmpeg
      • 位置：/Users/xxx/Library/Caches/ms-playwright/ffmpeg-1005
      • 效果：
    演示代码：
    # Function: Playwright demo baidu search
# Author: Crifan Li
# Update: 20210331


from playwright.sync_api import sync_playwright


with sync_playwright() as p:
    chromiumBrowserType = p.chromium
    print("chromiumBrowserType=%s" % chromiumBrowserType)
    browser = chromiumBrowserType.launch(headless=False)
    # chromiumBrowserType=<BrowserType name=chromium executable_path=/Users/xxx/Library/Caches/ms-playwright/chromium-857950/chrome-mac/Chromium.app/Contents/MacOS/Chromium>
    print("browser=%s" % browser)
    # browser=<Browser type=<BrowserType name=chromium executable_path=/Users/xxx/Library/Caches/ms-playwright/chromium-857950/chrome-mac/Chromium.app/Contents/MacOS/Chromium> version=90.0.4430.0>
    page = browser.new_page()
    print("page=%s" % page)
    # page=<Page url='about:blank'>
    page.goto('http://www.baidu.com')
    print("page=%s" % page)
    # page=<Page url='https://www.baidu.com/'>
    page.screenshot(path=f'example_chromium.png')
    browser.close()
    输出：
    chromiumBrowserType=<BrowserType name=chromium executable_path=/Users/xxx/Library/Caches/ms-playwright/chromium-857950/chrome-mac/Chromium.app/Contents/MacOS/Chromium>
browser=<Browser type=<BrowserType name=chromium executable_path=/Users/xxx/Library/Caches/ms-playwright/chromium-857950/chrome-mac/Chromium.app/Contents/MacOS/Chromium> version=90.0.4430.0>
page=<Page url='about:blank'>
page=<Page url='https://www.baidu.com/'>
    效果：

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