Python 剧作家 - 函数中的现有浏览器和变量

Question

下面是我的网络刮刀的代码，我正在尝试抓取汽车名称。我也有位置列表。我想在我的函数中使用locationlist的变量loc。

并且也使用打开的浏览器窗口，但是该功能不识别语法“页面”在第16行。

例如，像Selenium一样，您可以在代码顶部定义一次Web驱动程序，并在任何函数内外使用它，而无需再次调用它。

如何使用函数page.goto（“https://www.sixt.co.uk/")-

from playwright.sync_api import Playwright, sync_playwright, expect

locationList = [
    'London Luton Airport',
    'London Hilton',
    'London City',
    'London Wembley',
    'London Battersea',
    'London Shepherds Bush'
]

chromium = playwright.chromium
browser = chromium.launch(channel="chrome", headless=False)
page = browser.new_page()
page.set_viewport_size({"width": 1920, "height": 1080})
page.goto("https://www.sixt.co.uk/")
page.locator("[data-testid=\"uc-accept-all-button\"]").click()
page.locator("[placeholder=\"Find a location\"]").click()
page.locator("[placeholder=\"Find a location\"]").fill("luton")
page.locator("text=London Luton Airport (GB)").click()
page.locator("button:has-text(\"Show offers\")").click()

def run(playwright: Playwright):

    page.locator("[placeholder=\"Find a location\"]").click()
    page.locator("[placeholder=\"Find a location\"]").fill(loc)
    page.locator('//div[text()="' + loc + '"]').click()
    carnames = page.locator("//h2[@class='vehicle-item__title']")
    #Get all carnames in a list
    carnamelist = [cars.text for cars in carnames]

for loc in locationList:
    with sync_playwright() as playwright:
        run(playwright)

Answer 1

以下是如何在没有上下文管理器的情况下全局初始化剧作家浏览器。

在您的特定代码中，这将如下所示:

from playwright.sync_api import Playwright, sync_playwright

locationList = [
    'London Luton Airport',
    'London Hilton',
    'London City',
    'London Wembley',
    'London Battersea',
    'London Shepherds Bush'
]

playwright = sync_playwright().start()  # <-- Use this to initialize playwright globally

chromium = playwright.chromium
browser = chromium.launch(channel="chrome", headless=False)
page = browser.new_page()
page.set_viewport_size({"width": 1920, "height": 1080})
page.goto("https://www.sixt.co.uk/")
page.locator("[data-testid=\"uc-accept-all-button\"]").click()
page.locator("[placeholder=\"Find a location\"]").click()
page.locator("[placeholder=\"Find a location\"]").fill("luton")
page.locator("text=London Luton Airport (GB)").click()
page.locator("button:has-text(\"Show offers\")").click()

def run(playwright: Playwright):

    page.locator("[placeholder=\"Find a location\"]").click()
    page.locator("[placeholder=\"Find a location\"]").fill(loc)
    page.locator('//div[text()="' + loc + '"]').click()
    carnames = page.locator("//h2[@class='vehicle-item__title']")
    #Get all carnames in a list
    carnamelist = [cars.text for cars in carnames]

for loc in locationList:
    run(playwright)

playwright.stop()  # --> Cleanup resources properly when done

但是，您也可以从在原始问题中创建的上下文管理器中初始化页面和浏览器，它将按预期工作。