Pyppeteer 用于级联下拉框？

Question

I use python and pyppeteer to craw web page and stucked.

A page with 2 Drop down boxs A and B. B's select item is based on A's selection (items retrieved dynamic).

my code list list below but do not work

await page.select("select#ListA", "ItemA")
await page.waitFor(1000)
await page.select("select#ListB", "ItemA1")       
await page.waitFor(1000)

I have tried either await page.waitForNavigation() or page.waitForSelector(), but all fails.

Did I missing anything?

Any comment are appreciate !

Answer 1

It's hard to tell without seeing the website, but it's possible that your code fails because of the old version Chrome that pyppeteer specifies. You may want to try out pyppeteer2 (disclaimer: I'm one of the main developers), which is working to update the years abandoned library.

Another thing you could try is launching in headless mode and see exactly what is happening.