does not support multiple locators

[mermyly]

from patchright.sync_api import sync_playwright, expect

def main():
    with sync_playwright() as pw:
        browser = pw.chromium.launch(headless=False)
        context = browser.new_context()
        page = context.new_page()
        page.goto("https://www.vseinstrumenti.ru/search/?what=23850765")
        
        locator = page.locator("h1[data-qa='get-product-title']").or_(
            page.locator("span", has_text="Перейти в каталог").or_(
                page.locator("div.captcha-img")
            )
        )
        expect(locator.first).to_be_visible(timeout=10000)

traceback:

File "D:\projects\python\vseinstrumenti\grabber\.venv\Lib\site-packages\patchright\_impl\_connection.py", line 478, in wrap_api_call
    raise rewrite_error(error, f"{parsed_st['apiName']}: {error}") from None
patchright._impl._errors.Error: LocatorAssertions.to_be_visible: Error: Can't query n-th element
    at Frame._customFindElementsByParsed (D:\projects\python\vseinstrumenti\grabber\.venv\Lib\site-packages\patchright\driver\package\lib\server\frames.js:1667:17)
    at async D:\projects\python\vseinstrumenti\grabber\.venv\Lib\site-packages\patchright\driver\package\lib\server\frames.js:1057:34
    at async Frame.retryWithProgressAndTimeouts (D:\projects\python\vseinstrumenti\grabber\.venv\Lib\site-packages\patchright\driver\package\lib\server\frames.js:1003:24)
    at async Frame._expectInternal (D:\projects\python\vseinstrumenti\grabber\.venv\Lib\site-packages\patchright\driver\package\lib\server\frames.js:1392:21)
    at async D:\projects\python\vseinstrumenti\grabber\.venv\Lib\site-packages\patchright\driver\package\lib\server\frames.js:1354:18
    at async ProgressController.run (D:\projects\python\vseinstrumenti\grabber\.venv\Lib\site-packages\patchright\driver\package\lib\server\progress.js:80:22)
    at async Frame._expectImpl (D:\projects\python\vseinstrumenti\grabber\.venv\Lib\site-packages\patchright\driver\package\lib\server\frames.js:1353:31)
    at async Frame.expect (D:\projects\python\vseinstrumenti\grabber\.venv\Lib\site-packages\patchright\driver\package\lib\server\frames.js:1337:20)
    at async FrameDispatcher.expect (D:\projects\python\vseinstrumenti\grabber\.venv\Lib\site-packages\patchright\driver\package\lib\server\dispatchers\frameDispatcher.js:218:20)
    at async LongStandingScope._race (D:\projects\python\vseinstrumenti\grabber\.venv\Lib\site-packages\patchright\driver\package\lib\utils\isomorphic\manualPromise.js:95:14)
Call log:
  - LocatorAssertions.to_be_visible with timeout 10000ms
  3 × waiting for locator("h1[data-qa='get-product-title']").or_(locator("span").filter(has_text="Перейти в каталог").or_(locator("div.captcha-img"))).first

But if I use a standard playwright, there will be no such error.

[pvm30]

If you want a quick and dirty solution go to the directory where you patchright package is installed and open this file {WHATEVER}\site-packages\patchright\driver\package\lib\server\frames.js and look for this code

    if (partNth > currentScopingElements.length-1 || partNth < -(currentScopingElements.length-1)) {
          throw new Error("Can't query n-th element");
    } else {

remove the final -1 and leave the condition like this

    if (partNth > currentScopingElements.length-1 || partNth < -currentScopingElements.length) {
          throw new Error("Can't query n-th element");
    } else {

I don't know if this solution is completely correct, but at least your example works

regards