如何捕获这个嵌套的httpx异常？
如何捕获这个嵌套的httpx异常？
提问于 2022-09-11 03:44:07
我是这样困住的：
with httpx.Client(**sessions[scraperIndex]) as client:
try:
response = client.get(...)
except TimeoutError as e:
print('does not hit')
except Exception as e:
print(f'⛔️ Unexpected exception: {e}')
print_exc() # hits!不过，我得到了下面的撞车转储。
拔出关键线路：
TimeoutError: The read operation timed out
During handling of the above exception, another exception occurred:
httpcore.ReadTimeout: The read operation timed out
The above exception was the direct cause of the following exception:
httpx.ReadTimeout: The read operation timed out为什么我的TimeoutError没有捕捉到这个？
正确的捕获是什么？有人能给出推论的逻辑吗？
CrashDump：
⛔️ Unexpected exception: The read operation timed out
Traceback (most recent call last):
File "/usr/local/lib/python3.10/dist-packages/httpcore/_exceptions.py", line 8, in map_exceptions
yield
File "/usr/local/lib/python3.10/dist-packages/httpcore/backends/sync.py", line 26, in read
return self._sock.recv(max_bytes)
File "/usr/lib/python3.10/ssl.py", line 1258, in recv
return self.read(buflen)
File "/usr/lib/python3.10/ssl.py", line 1131, in read
return self._sslobj.read(len)
TimeoutError: The read operation timed out
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.10/dist-packages/httpx/_transports/default.py", line 60, in map_httpcore_exceptions
yield
File "/usr/local/lib/python3.10/dist-packages/httpx/_transports/default.py", line 218, in handle_request
resp = self._pool.handle_request(req)
File "/usr/local/lib/python3.10/dist-packages/httpcore/_sync/connection_pool.py", line 253, in handle_request
raise exc
File "/usr/local/lib/python3.10/dist-packages/httpcore/_sync/connection_pool.py", line 237, in handle_request
response = connection.handle_request(request)
File "/usr/local/lib/python3.10/dist-packages/httpcore/_sync/connection.py", line 90, in handle_request
return self._connection.handle_request(request)
File "/usr/local/lib/python3.10/dist-packages/httpcore/_sync/http11.py", line 105, in handle_request
raise exc
File "/usr/local/lib/python3.10/dist-packages/httpcore/_sync/http11.py", line 84, in handle_request
) = self._receive_response_headers(**kwargs)
File "/usr/local/lib/python3.10/dist-packages/httpcore/_sync/http11.py", line 148, in _receive_response_headers
event = self._receive_event(timeout=timeout)
File "/usr/local/lib/python3.10/dist-packages/httpcore/_sync/http11.py", line 177, in _receive_event
data = self._network_stream.read(
File "/usr/local/lib/python3.10/dist-packages/httpcore/backends/sync.py", line 24, in read
with map_exceptions(exc_map):
File "/usr/lib/python3.10/contextlib.py", line 153, in __exit__
self.gen.throw(typ, value, traceback)
File "/usr/local/lib/python3.10/dist-packages/httpcore/_exceptions.py", line 12, in map_exceptions
raise to_exc(exc)
httpcore.ReadTimeout: The read operation timed out
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/root/scraper-pi/Scrape.py", line 148, in main
cursor, _nScraped = scrape(client, cursor)
File "/root/scraper-pi/Scrape.py", line 79, in scrape
response = client.get(
File "/usr/local/lib/python3.10/dist-packages/httpx/_client.py", line 1039, in get
return self.request(
File "/usr/local/lib/python3.10/dist-packages/httpx/_client.py", line 815, in request
return self.send(request, auth=auth, follow_redirects=follow_redirects)
File "/usr/local/lib/python3.10/dist-packages/httpx/_client.py", line 902, in send
response = self._send_handling_auth(
File "/usr/local/lib/python3.10/dist-packages/httpx/_client.py", line 930, in _send_handling_auth
response = self._send_handling_redirects(
File "/usr/local/lib/python3.10/dist-packages/httpx/_client.py", line 967, in _send_handling_redirects
response = self._send_single_request(request)
File "/usr/local/lib/python3.10/dist-packages/httpx/_client.py", line 1003, in _send_single_request
response = transport.handle_request(request)
File "/usr/local/lib/python3.10/dist-packages/httpx/_transports/default.py", line 217, in handle_request
with map_httpcore_exceptions():
File "/usr/lib/python3.10/contextlib.py", line 153, in __exit__
self.gen.throw(typ, value, traceback)
File "/usr/local/lib/python3.10/dist-packages/httpx/_transports/default.py", line 77, in map_httpcore_exceptions
raise mapped_exc(message) from exc
httpx.ReadTimeout: The read operation timed out回答 1
Stack Overflow用户
回答已采纳
发布于 2022-09-11 12:55:03
所有httpx超时错误的基类不是内置的TimeoutError (大概是因为这也会使超时OSErrors，听起来不正确)，而是httpx.TimeoutException。
import httpx
with httpx.Client() as client:
try:
response = client.get("http://httpbin.org/get", timeout=0.001)
except httpx.TimeoutException as e:
print('gottem')gottem的指纹很好。
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原文链接：
https://stackoverflow.com/questions/73676661
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