迭代期间 deque 发生变化 / 字典发生变化

Traceback (most recent call last): File "R:\httpxdltest.py", line 26, in download with contextlib.closing(client.send(req, stream=True)) as response: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\User\AppData\Roaming\Python\Python312\site-packages\httpx_client.py", line 914, in send response = self._send_handling_auth( ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\User\AppData\Roaming\Python\Python312\site-packages\httpx_client.py", line 942, in _send_handling_auth response = self._send_handling_redirects( ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\User\AppData\Roaming\Python\Python312\site-packages\httpx_client.py", line 979, in _send_handling_redirects response = self._send_single_request(request) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\User\AppData\Roaming\Python\Python312\site-packages\httpx_client.py", line 1014, in _send_single_request response = transport.handle_request(request) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\User\AppData\Roaming\Python\Python312\site-packages\httpx_transports\default.py", line 250, in handle_request resp = self._pool.handle_request(req) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\User\AppData\Roaming\Python\Python312\site-packages\httpcore_sync\connection_pool.py", line 256, in handle_request raise exc from None File "C:\Users\User\AppData\Roaming\Python\Python312\site-packages\httpcore_sync\connection_pool.py", line 236, in handle_request response = …