playwright_page is required for browser-based creator info f

Error message

playwright_page is required for browser-based creator info fetching

What it means

Raised by BaiduTieBaClient.get_creator_info_by_url (media_platform/tieba/client.py:657) when self.playwright_page is None. Creator info comes from the PC JSON API fetched inside a browser session (_fetch_json_by_browser on /c/u/pc/homeSidebarRight), so the method refuses without a page. It is the browser-guard sibling of the portrait-extraction check that follows it at line 661.

Source

Thrown at media_platform/tieba/client.py:657

            utils.logger.info(f"[BaiduTieBaClient.get_notes_by_tieba_name] Extracted {len(notes)} posts")
            return notes

        except Exception as e:
            utils.logger.error(f"[BaiduTieBaClient.get_notes_by_tieba_name] Failed to get Tieba post list: {e}")
            raise

    async def get_creator_info_by_url(self, creator_url: str) -> TiebaCreator:
        """
        Get creator information by creator URL from current PC JSON API.
        Args:
            creator_url: Creator homepage URL

        Returns:
            TiebaCreator: Creator information
        """
        if not self.playwright_page:
            utils.logger.error("[BaiduTieBaClient.get_creator_info_by_url] playwright_page is None, cannot use browser mode")
            raise Exception("playwright_page is required for browser-based creator info fetching")

        portrait = self._extract_creator_portrait(creator_url)
        if not portrait:
            raise Exception(f"Can not extract Tieba creator portrait from url: {creator_url}")

        utils.logger.info(
            f"[BaiduTieBaClient.get_creator_info_by_url] Accessing creator info API, portrait: {portrait}"
        )

        try:
            api_data = await self._fetch_json_by_browser(
                "/c/u/pc/homeSidebarRight",
                params={
                    "portrait": portrait,
                    "un": "",
                    "subapp_type": "pc",
                    "_client_type": "20",
                },

View on GitHub (pinned to d6f7c5bb90)

Solutions

Attach a live Playwright page to the client before calling creator methods
Verify browser launch succeeded and login finished before the creator crawl stage starts
In tests, inject a mock page implementing goto/content/evaluate

Defensive patterns

Strategy: type-guard

Validate before calling

if not client.playwright_page:
    raise RuntimeError("creator crawl requires an attached Playwright page")

Type guard

def creator_crawl_ready(client) -> bool:
    p = getattr(client, "playwright_page", None)
    return p is not None and not p.is_closed()

Prevention

Sequence creator crawls after login/browser setup completes
Detect closed pages and re-create the browser context mid-run

When it happens

Trigger: Calling get_creator_info_by_url(creator_url) on a client constructed without playwright_page, e.g. creator crawl started before the browser context exists or after it was closed.

Common situations: Creator-crawl pipelines (TIEBA_CREATOR_ID_LIST config) run without completing the login/browser bootstrap; browser crash leaving a stale client; headless test environments missing Playwright.

Related errors

AI-assisted analysis of NanmiCoder/MediaCrawler@d6f7c5bb90 (2026-08-15). Data as JSON: /api/errors/05694e356cad299c. Report an issue: GitHub.