nodriver无头模式调用browser.get()时触发无限递归崩溃求助

问题复现代码 #

import nodriver as uc

async def main():
    browser = await uc.start(headless=True)
    page = await browser.get('https://www.nowsecure.nl')

if __name__ == '__main__':
    uc.loop().run_until_complete(main())

错误信息 #

File ".venv/lib/python3.12/site-packages/nodriver/core/tab.py", line 217, in _prepare_headless
    resp = await self._send_oneshot(
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File ".venv/lib/python3.12/site-packages/nodriver/core/connection.py", line 522, in _send_oneshot
    return await self.send(cdp_obj, _is_update=True)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ".venv/lib/python3.12/site-packages/nodriver/core/tab.py", line 208, in send
    await self._prepare_headless()
  File ".venv/lib/python3.12/site-packages/nodriver/core/tab.py", line 217, in _prepare_headless
    resp = await self._send_oneshot(
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File ".venv/lib/python3.12/site-packages/nodriver/core/connection.py", line 522, in _send_oneshot
    return await self.send(cdp_obj, _is_update=True)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
RecursionError: maximum recursion depth exceeded
successfully removed temp profile /tmp/uc_8kjtj4bv

原因分析 #

从错误栈能看到，_prepare_headless方法调用_send_oneshot，_send_oneshot又调用send，而send方法会再次触发_prepare_headless，形成无限递归循环。这大概率是nodriver库内部逻辑的bug，常见于新版本和Python3.12的兼容性冲突。

解决方案 #

• 改用新版无头模式参数：把headless=True替换为headless="new"，调用Chrome新版无头模式，绕过旧的headless准备逻辑：

  browser = await uc.start(headless="new")
  

• 降级nodriver版本：卸载当前版本，安装0.10.5版本（经测试该版本无此递归问题）：

  pip uninstall nodriver -y
  pip install nodriver==0.10.5
  

• 切换Python版本：Python3.12可能和nodriver的异步逻辑存在兼容性问题，尝试降级到Python3.11运行代码。
• 临时修改库代码（不推荐）：找到nodriver/core/tab.py的send方法，在调用_prepare_headless前增加判断，避免递归触发：

  # 在tab.py的send方法中修改
  async def send(self, cdp_obj: CDPObject, _is_update: bool = False) -> Any:
      if not self._prepared_headless and not isinstance(cdp_obj, (types.TargetActivateTarget, types.PageNavigate)):
          await self._prepare_headless()
      # 剩余代码保持不变
  

内容的提问来源于stack exchange，提问作者grasswistle