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A high-level API to automate web browsers

Project description

🎭 Playwright for Python PyPI version Join Slack

Docs | API

Playwright is a Python library to automate Chromium, Firefox and WebKit browsers with a single API. Playwright delivers automation that is ever-green, capable, reliable and fast. See how Playwright is better.

Linux macOS Windows
Chromium 90.0.4430.0
WebKit 14.2
Firefox 87.0b10

Headless execution is supported for all browsers on all platforms.

Usage

pip install playwright
playwright install

This installs Playwright and browser binaries for Chromium, Firefox and WebKit. Playwright requires Python 3.7+.

Record and generate code

Playwright can record user interactions in a browser and generate code. See demo.

# Pass --help to see all options
playwright codegen

Playwright offers both sync (blocking) API and async API. They are identical in terms of capabilities and only differ in how one consumes the API.

Sync API

This is our default API for short snippets and tests. If you are not using asyncio in your application, it is the easiest to use Sync API notation.

from playwright.sync_api import sync_playwright

with sync_playwright() as p:
    for browser_type in [p.chromium, p.firefox, p.webkit]:
        browser = browser_type.launch()
        page = browser.new_page()
        page.goto('http://whatsmyuseragent.org/')
        page.screenshot(path=f'example-{browser_type.name}.png')
        browser.close()

Async API

If you app is based on the modern asyncio loop and you are used to async/await constructs, Playwright exposes Async API for you. You should use this API inside a Python REPL supporting asyncio like with python -m asyncio

$ python -m asyncio
import asyncio
from playwright.async_api 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()
            page = await browser.new_page()
            await page.goto('http://whatsmyuseragent.org/')
            await page.screenshot(path=f'example-{browser_type.name}.png')
            await browser.close()

asyncio.run(main())

With pytest

Use our pytest plugin for Playwright.

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.wait_for_selector("text=microsoft/Playwright")

Interactive mode (REPL)

Blocking REPL, as in CLI:

>>> from playwright.sync_api import sync_playwright
>>> playwright = sync_playwright().start()

# Use playwright.chromium, playwright.firefox or playwright.webkit
# Pass headless=False to see the browser UI
>>> browser = playwright.chromium.launch()
>>> page = browser.new_page()
>>> page.goto("http://whatsmyuseragent.org/")
>>> page.screenshot(path="example.png")
>>> browser.close()
>>> playwright.stop()

Async REPL such as asyncio REPL:

$ python -m asyncio
>>> from playwright.async_api import async_playwright
>>> playwright = await async_playwright().start()
>>> browser = await playwright.chromium.launch()
>>> page = await browser.new_page()
>>> await page.goto("http://whatsmyuseragent.org/")
>>> await page.screenshot(path="example.png")
>>> await browser.close()
>>> await playwright.stop()

Examples

Mobile and geolocation

This snippet emulates Mobile Safari on a device at a given geolocation, navigates to maps.google.com, performs action and takes a screenshot.

from playwright.sync_api import sync_playwright

with sync_playwright() as p:
    iphone_11 = p.devices["iPhone 11 Pro"]
    browser = p.webkit.launch(headless=False)
    context = browser.new_context(
        **iphone_11,
        locale="en-US",
        geolocation={"longitude": 12.492507, "latitude": 41.889938 },
        permissions=["geolocation"]
    )
    page = context.new_page()
    page.goto("https://maps.google.com")
    page.click("text=Your location")
    page.screenshot(path="colosseum-iphone.png")
    browser.close()
Async variant
import asyncio
from playwright.async_api import async_playwright

async def main():
    async with async_playwright() as p:
        iphone_11 = p.devices["iPhone 11 Pro"]
        browser = await p.webkit.launch(headless=False)
        context = await browser.new_context(
            **iphone_11,
            locale="en-US",
            geolocation={"longitude": 12.492507, "latitude": 41.889938},
            permissions=["geolocation"]
        )
        page = await context.newPage()
        await page.goto("https://maps.google.com")
        await page.click("text="Your location"")
        await page.screenshot(path="colosseum-iphone.png")
        await browser.close()

asyncio.run(main())

Evaluate JS in browser

This code snippet navigates to example.com in Firefox, and executes a script in the page context.

from playwright.sync_api import sync_playwright

with sync_playwright() as p:
    browser = p.firefox.launch()
    page = browser.new_page()
    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()
Async variant
import asyncio
from playwright.async_api import async_playwright

async def main():
    async with async_playwright() as p:
        browser = await p.firefox.launch()
        page = await browser.new_page()
        await page.goto("https://www.example.com/")
        dimensions = await page.evaluate("""() => {
          return {
            width: document.documentElement.clientWidth,
            height: document.documentElement.clientHeight,
            deviceScaleFactor: window.devicePixelRatio
          }
        }""")
        print(dimensions)
        await browser.close()

asyncio.run(main())

Intercept network requests

This code snippet sets up request routing for a Chromium page to log all network requests.

from playwright.sync_api import sync_playwright

with sync_playwright() as p:
    browser = p.chromium.launch()
    page = browser.new_page()

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

    # Log and continue all network requests
    page.route("**/*", log_and_continue_request)

    page.goto("http://todomvc.com")
    browser.close()
Async variant
import asyncio
from playwright.async_api import async_playwright

async def main():
    async with async_playwright() as p:
        browser = await p.chromium.launch()
        page = await browser.new_page()

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

        # Log and continue all network requests
        await page.route("**/*", log_and_continue_request)
        await page.goto("http://todomvc.com")
        await browser.close()

asyncio.run(main())

Documentation

Check out our new documentation site!

Is Playwright ready?

Yes, Playwright for Python is ready! The latest version of Playwright for Python is 1.8.0a. We are ready to drop the Alpha bit once we hear from you. Once it is gone, we will become semver compatible and the API will be frozen in its present form for years. We will still be adding features with every release, but we promise to not break it anymore!

Migration from the pre-release versions

The API has changed since the last 0.170.0 version:

  • Snake case notation for methods and arguments:

    # old
    browser.newPage()
    
    # new
    browser.new_page()
    
  • Import has changed to include sync vs async mode explicitly:

    # old
    from playwright import sync_playwright
    
    # new
    from playwright.sync_api import sync_playwright
    

That's about it! Our new doc site uses proper notation and examples for the new API.

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