from playwright.sync_api import sync_playwright

with sync_playwright() as playwright:
    browser = playwright.chromium.launch()
    page = browser.new_page()
    page.goto('http://example.com/')
    with page.expect_popup() as popup_info:
        page.evaluate('window.open("http://example.com/")')
    popup = popup_info.value
    with popup.expect_event('close') as popup_info:
        popup.evaluate('window.close()')
    browser.close()