httpx timeout exception

python-httpx.org › advanced › timeouts

Timeouts - HTTPX

The connect timeout specifies the maximum amount of time to wait until a socket connection to the requested host is established. If HTTPX is unable to connect within this time frame, a ConnectTimeout exception is raised.

python-httpx.org › exceptions

Exceptions - HTTPX

Base class for all exceptions that occur at the level of the Transport API. class httpx.TimeoutException(message, *, request=None)

Discussions

python - Httpx requests timing out when it shouldn't - Stack Overflow

I have an asynchronous script that sends 1 request to different url (223 in this case) so not the same host. The problem is that after ~ 150 requests, it starts to timeout urls but when processing ... More on stackoverflow.com

stackoverflow.com

python 3.x - Strange errors with asynchronous requests - Stack Overflow

The default behavior is to raise ... The read timeout specifies the maximum duration to wait for a chunk of data to be received (for example, a chunk of the response body). If HTTPX is unable to receive data within this time frame, a ReadTimeout exception is rais... More on stackoverflow.com

stackoverflow.com

httpx.TimeoutException with o3 deepresearch and o3 pro models

I am building a demo with the o3 deepresearch model and my colleague is working on code inside our product with the o3 pro models. Earlier this week, we both started seeing httpx timeouts on every call. I’ll speak about my experience. I have a fairly straight-forward responses API call: response ... More on community.openai.com

community.openai.com

July 11, 2025

httpx does not wrap asyncio.exceptions.TimeoutError as TimeoutException

Checklist The bug is reproducible against the latest release and/or master. There are no similar issues or pull requests to fix it yet. Describe the bug httpx does not wrap asyncio.exceptions.Timeo... More on github.com

github.com

November 10, 2020

Gitlab

honeyryderchuck.gitlab.io › httpx › wiki › Timeouts

Timeouts - · honeyryder - GitLab

Violation of this timeout will result in a HTTPX::ConnectionTimeoutError exception, which subclasses HTTPX::TimeoutError.

stackoverflow.com › questions › 78287675 › httpx-requests-timing-out-when-it-shouldnt

python - Httpx requests timing out when it shouldn't - Stack Overflow

It is an issue with ReadTimeout in httpx. Just disable read timeout and your old code will work fine.

stackoverflow.com › questions › 59362346 › strange-errors-with-asynchronous-requests

python 3.x - Strange errors with asynchronous requests - Stack Overflow

OpenAI Developer Community

The httpx documentation covers the ReadTimeout you are experiencing:

HTTPX is careful to enforce timeouts everywhere by default. The default behavior is to raise a TimeoutException after 5 seconds of network inactivity. The read timeout specifies the maximum duration to wait for a chunk of data to be received (for example, a chunk of the response body). If HTTPX is unable to receive data within this time frame, a ReadTimeout exception is raised.

Try first disabling the timeout duration for reads (adapted from the example in the above link):

timeout = httpx.Timeout(10.0, read_timeout=None)
response = await httpx.get(rss, headers=headers, verify=False, timeout=timeout)

And then experiment with different timeout durations to see what is reasonable for your use-case.

EDIT: the API has been updated, parameter name has been changed from read_timeout to read:

timeout = httpx.Timeout(10.0, read=None)

community.openai.com › api

httpx.TimeoutException with o3 deepresearch and o3 pro models - API - OpenAI Developer Community

July 11, 2025 - I am building a demo with the o3 deepresearch model and my colleague is working on code inside our product with the o3 pro models. Earlier this week, we both started seeing httpx timeouts on every call. I’ll speak about my experience. I have a fairly straight-forward responses API call: response = client.responses.create( model="o3-deep-research", input=input_text, instructions=instructions, timeout=7200.0, tools=[ { "type": "mcp", "server_label": "b...

github.com › encode › httpx › issues › 1387

httpx does not wrap asyncio.exceptions.TimeoutError as TimeoutException · Issue #1387 · encode/httpx

November 10, 2020 - asyncio.exceptions.TimeoutError should be wrapped by httpx when connecting to proxies, users should not know the internal dependecies.

Author elonzh

stackoverflow.com › questions › 73676661 › how-to-trap-this-nested-httpx-exception

python - How to trap this nested httpx exception? - Stack Overflow

reddit.com › r/learnpython › httpx requests timing out when it shouldn't.

The base class for all httpx timeout errors is not the built-in TimeoutError (presumably because that would also make timeouts OSErrors, which doesn't sound correct), but 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')

prints gottem just fine.

Find elsewhere

Google Bing Mojeek

r/learnpython on Reddit: Httpx requests timing out when it shouldn't.

April 1, 2024 -

Hello, I have an asynchronous script that sends some requests. But I have a problem. The urls times out when it should not : Here's the function

async with httpx.AsyncClient() as client:
  response = await client.get(url, follow_redirects=True, headers=headers, timeout=timeout)

where

timeout = 30

input :

https://gmail.com https://webasto.com https://unicopower.com https://bt2energy.com https://bulletev.com`
420 other urls

I get this in the logs :

2024-04-01T22:13:58.375Z Request to https://gmail.com timed out. Moving to the next url... 2024-04-01T22:13:58.739Z Request to https://webasto.com timed out. Moving to the next url... 2024-04-01T22:13:58.755Z Request to https://unicopower.com timed out. Moving to the next url... 2024-04-01T22:13:58.859Z Request to https://bt2energy.com timed out. Moving to the next url... 2024-04-01T22:13:58.862Z Request to https://bulletev.com timed out. Moving to the next url...

However, when I run the script with those urls only it works : input :

https://gmail.com https://webasto.com https://unicopower.com https://bt2energy.com https://bulletev.com

Output :

2024-04-01T22:21:58.787Z INFO  Initializing actor... 2024-04-01T22:21:58.789Z INFO  System info ({"apify_sdk_version": "1.1.5", "apify_client_version": "1.4.1", "python_version": "3.11.8", "os": "linux"}) 2024-04-01T22:21:59.091Z Processing https://bt2energy.com... 2024-04-01T22:21:59.379Z Processing https://bulletev.com... 2024-04-01T22:21:59.817Z Processing https://gmail.com... 2024-04-01T22:21:59.981Z list index out of range https://gmail.com 2024-04-01T22:21:59.983Z Processing https://unicopower.com... 2024-04-01T22:22:00.549Z Processing https://webasto.com... 2024-04-01T22:22:00.705Z INFO  Exiting actor ({"exit_code": 0})

it works. Why does those urls timeout when being processed with hundreds of other urls but when I process them seperatily it works? Note: it does that for other urls aswell

Sites don't have to permit themselves to be scraped by you, and one of the ways they defend themselves from scraping is by timing out requests from scripts as they detect them, because that wastes your time, rather than wasting their time.

Mkdocs

mkdocs.io › encode › httpx › advanced › timeouts

snyk.io › advisor › httpx › functions › httpx.exceptions.httperror

Snyk

How to use the httpx.exceptions.HTTPError function in httpx | Snyk

encode / httpx / httpx / exceptions.py View on Github · class PoolTimeout(TimeoutException): """ Timeout while waiting to acquire a connection from the pool. """ class ProxyError(HTTPError): """ Error from within a proxy """ # HTTP exceptions... class ProtocolError(HTTPError): """ Malformed HTTP.

pytest_httpx

colin-b.github.io › pytest_httpx

pytest_httpx | pytest fixture to mock HTTPX

The default behavior is to instantly raise a httpx.TimeoutException in case no matching response can be found. The exception message will display the request and every registered responses to help you identify any possible mismatch.

stackoverflow.com › questions › 76525517 › python-httpx-post-request-timeout

Python HTTPX post Request timeout - Stack Overflow

with httpx.Client() as c: response = c.post(self.url, data=body, headers=SOAP_HEADER, timeout=60) return self.soap_response(response) except Exception as ex: logger.info('Error during retrieve search for car parks at %s : %s', self.url, ex) return self.soap_error(ex=ex, code=500)

github.com › encode › httpx › issues › 1450

Overall response timeout. · Issue #1450 · encode/httpx

January 11, 2021 - In other words when request is being streamed as long as 1 byte every 2 seconds (or aprox.) is being generated the connection will not close or timeout with none of the current available settings. It's possible for the server to serve single html page almost idefinitely and hang the client thread. Maybe httpx should introduce some optional or even default handlers for this?

Author Granitosaurus

python-httpx.org › troubleshooting

Troubleshooting - HTTPX

Description: When using a proxy and making an HTTPS request, you see an exception looking like this:

Lightrun

lightrun.com › answers › felix-hilden-tekore-httpxconnecttimeout

httpx.ConnectTimeout

The connect timeout specifies the maximum amount of time to wait until a socket connection to the requested host is established. If HTTPX...Read more > How can I fix ConnectTimeout exceptions from within FastAPI

github.com › encode › httpx › issues › 832

Connect Timeout confusion · Issue #832 · encode/httpx

February 28, 2020 - except asyncio.TimeoutError: raise ConnectTimeout() What I think is strange is that, my applications are monitored with NewRelic and Microsoft Application Insights, and although they say that a request took something like 5s, I can find the request in the origin and it took just some milliseconds. So I think my question here is this: is there something in the origin application that can cause this timeout?

Author victoraugustolls

stackoverflow.com › questions › 79708570 › why-httpx-timeout-not-working-with-stream-response

python - Why httpx timeout not working with stream response - Stack Overflow

timeout for httpx is generally for network inactivity, it is not a time limit for the whole process of a request. For example, timeout includes the maximum duration from when the connection has been established to when the first bytes of data has been received from the server. If no data sent from the server, a ReadTimeout exception is raised after timeout seconds.

There are four different types of timeouts. These are connect, read, write, and pool timeouts. See the httpx doc.

Additionally, timeout for requests library works similarly. See this answer to help understanding.