from playwright.sync_api import sync_playwright, Playwright

def handle_dialog(dialog):
    print(dialog.message)
    dialog.dismiss()

def run(playwright: Playwright):
    chromium = playwright.chromium
    browser = chromium.launch()
    page = browser.new_page()
    page.on("dialog", handle_dialog)
    page.evaluate("alert('1')")
    browser.close()

with sync_playwright() as playwright:
    run(playwright)