RuntimeError: Event loop is closed

After running pip install playwright and playwright install, I went to the documentation to try some of the features out. Here is the code which I ran:

from playwright.sync_api import sync_playwright
with sync_playwright() as p:
    browser = p.chromium.launch()
page = browser.new_page()

However, I received an error: RuntimeError: Event loop is closed.

I proceeded to try the same process by with browser=p.firefox.launch(), but to no avail.

Specifications:

• Python 3.9.2
• Playwright v1.9.1

[JacobLee23]

I think I was able to solve it, assuming my fix is relevant to the warning. I spent a while debugging and one of my tests didn’t call browser.close() before calling p.stop() (from the above comment). I haven’t seen the warning message much after fixing this, so I think this may be the solution to my issue.

[pavelfeldman]

Sorry for the late reply. Your snippet looks correct, but we need more information to address this. Could you run your snippet with the DEBUG=pw:browser* environment variable set? That would help us identifying the issue.