'HTTPResponse' object has no attribute 'strict'

[aakashrshah]

• Poetry version: Poetry (version 1.4.2)
• Python version: Python: 3.10.10
• OS version and name: macOS 13.2
• pyproject.toml: https://gist.github.com/aakashrshah/16d755f1bfacdcee1bb2cd2a66a409f0

• I am on the latest stable Poetry version, installed using a recommended method.
• I have searched the issues of this repo and believe that this is not a duplicate.
• I have consulted the FAQ and blog for any relevant entries or release notes.
• If an exception occurs when executing a command, I executed it again in debug mode (-vvv option) and have included the output below.

Issue

  AttributeError

  'HTTPResponse' object has no attribute 'strict'

  at ~/Library/Caches/pypoetry/virtualenvs/rubber-duck-py3.10/lib/python3.10/site-packages/cachecontrol/serialize.py:54 in dumps
       50│                 ),
       51│                 u"status": response.status,
       52│                 u"version": response.version,
       53│                 u"reason": text_type(response.reason),
    →  54│                 u"strict": response.strict,
       55│                 u"decode_content": response.decode_content,
       56│             }
       57│         }
       58│ 

I am not able to install or add packages and blocked significantly. I do not see this issue on internet. Am i using a wrong python version? this is the latest version of poetry , shall i revert?

[dimbleby]

this is psf/cachecontrol#292

however since poetry requirements do not allow urllib3 2.0, this shows that you, or whatever you used to install poetry, have upgraded something that you should not have done

please close

[dimbleby]

PS I do not know why you write here "I do not see this issue on internet." when, as I now see, you have already commented on that other issue

[Secrus]

Poetry has urllib3 pinned below 2.0, so you had to mess something up on your end (for example by installing your project and poetry into the same environment). In any case, this is not Poetry's fault.

[josumoreno-BP]

Can be the case that you are still using poetry < 1.2; in that case you will need to pin urllib to < 2 because it was a dev dependency as you can see here.

[aakashrshah]

Good by me if we want to close it. Currently I removed the line with strict in cache control.

I tried it on python 3.10, 3.11 with latest poetry and latest pip.

I don’t know what did I mess up on my end.

Thanks though.

[aakashrshah]

Can be the case that you are still using poetry < 1.2; in that case you will need to pin urllib to < 2 because it was a dev dependency as you can see here.

I surely confirm I am using latest version 1.4.2 in and out(global) of my virtual environment.

[chanwutk]

@aakashrshah I am having the same issue (this issue started to happen a couple days ago).
Would you mind if I ask you how did you "removed the line with strict in cache control", please?

[FachengG]

@chanwutk
Here is a solution for anyone faced similar problem:
use None to replace response.strict.

Not sure about side-effect, but it will work again.

[aakashrshah]

@aakashrshah I am having the same issue (this issue started to happen a couple days ago).
Would you mind if I ask you how did you "removed the line with strict in cache control", please?

Hi @chanwutk

I deleted line 54
python3.10/site-packages/cachecontrol/serialize.py:54

[chanwutk]

Thank you!!

[lucafulgenzi]

System config:

• Python: 3.11.3
• Poetry: 1.4.2

Working with urllib3==1.26.9 installed globally

[trigremm]

poetry add "urllib3<=2.0" solved the topic issue for my projects

[Yanqiao4396]

poetry add "urllib3<=2.0" solved the topic issue for my projects

Didn't work on mine, unfortunately

[trigremm]

poetry add "urllib3<=2.0" solved the topic issue for my projects

Didn't work on mine, unfortunately

Have you tried to check urllib3 version and if in case of >=2.0 downgrade it via pip and repeat ?

[trigremm]

poetry add "urllib3<=2.0" solved the topic issue for my projects

Didn't work on mine, unfortunately

Have you tried to check urllib3 version and if in case of >=2.0 downgrade it via pip and repeat ?

urllib3 Remove strict parameter 2064
urllib3/urllib3#2064

[vetsin]

Had this issue seemingly because i've installed my package into the same pyenv environment poetry exists on --

had to manually add the del line in ~/.pyenv/versions/3.11.3/lib/python3.11/site-packages/cachecontrol/serialize.py's prepare_response method as follows:

        del cached["response"]["strict"]
        return HTTPResponse(body=body, preload_content=False, **cached["response"])

From there I was able to poetry update

[Yanqiao4396]

poetry add "urllib3<=2.0" solved the topic issue for my projects

Didn't work on mine, unfortunately

Have you tried to check urllib3 version and if in case of >=2.0 downgrade it via pip and repeat ?

urllib3 Remove strict parameter 2064 urllib3/urllib3#2064

Thank you for the reply, my issue is solved by upgrading my Poetry version to 1.4.2 (versions below that may still work but I didn't try) or above (it was 1.1.13 before). I guess my issue comes from Requests dependency that Poetry itself uses

[paultiplady]

Maybe context-specific, but I fixed this by using pyenv to split poetry into a separate venv.

pyenv local myproject 3.7.9 sets pyenv to look for executables first in myproject (the local project-specific venv) followed by 3.7.9 (the global python version where I've installed poetry). You could also create a completely separate venv just for poetry.

Another approach might be to use pipx to run poetry, since it handles isolating the executable in its own venv.

[vcidst]

Downgrading requests worked for me, pip install requests==2.28

Is this error related to psf/cachecontrol#301 which was merged yesterday?
I was using poetry==1.1.13 and the docker builds started failing since poetry installs the latest version of requests package.

[amites]

add this reference which provides some guidance for how to migrate from 1.x to 2.x for urllib3
https://urllib3.readthedocs.io/en/latest/v2-migration-guide.html

if you pin versions for

urllib3==1.26.16
requests==2.29.0

everything continues to work

[n-splv]

Turns out, not all responses come with "strict" key. I had to add the following in prepare_response in site-packages/cachecontrol/serialize.py:

    if cached["response"].get("strict") is not None:
      del cached["response"]["strict"]

[diegoquintanav]

In my case, I started getting this error after something I did with pipx (can't tell really what happened). Running pipx install poetry --force fixed poetry for me.

[XChikuX]

Just always pin these dependencies for poetry and you should be good.

[tool.poetry.dependencies]
python = "^3.10"
charset-normalizer = "^3.1.0"  # Needed cause of a bug in poetry
urllib3 = "^1.26.16"  # Needed cause of a bug in poetry

Just downgrade urllib3 with pip in case you broke poetry.

[jeromegit]

Running this worked for me:
pip install -U requests==2.28.2 urllib3==1.26.15
(using poetry 1.4)

[tew9]

I had the same issue, and I fix it by deleting the terminal I was running it from and rerun it in another terminal.
It was a virtual environment issue for me.
Issue: I was debugging using a terminal which is running poetry virtual environment.
Fix: I deleted the terminal and create the new one that was on base environment and everything works fine.

hope that helps

[sir-kokabi]

I've deleted all poetry virtual environments and created a new virtual environment again, and the problem was resolved.
windows 11.

[bramses]

For me, I had moved my folder with poetry into a subfolder later on and for some reason that broke everything.

1. poetry shell was in ~/folder_a
2. i moved folder_a into ~/new_parent_folder/folder_a
3. this broke poetry add, poetry install etc

still not sure why. but when i moved it back to ~, it was fine again.

[hungiito]

I had the same problem when installing poetry in a virtual environment. I found that when running poetry install in a virtual environment, poetry still use outdated urllib3 and requests installed in the machine. So I tried to upgrade urllib3 and requests (outside of virtual environment) and it works.

In short

deactivate # deactivate virtual env (if activated)
pip3 install --upgrade pip
pip3 install --upgrade urllib3 requests

[Telofy]

I was about to fork Poetry and create a PR that adds the urllib3 = "^1.26.16" dependency to Poetry's pyproject.toml, but something tells me there's probably some recondite reason for the omission of the dependency? Or has just no one gotten around to adding it?

[Secrus]

I was about to fork Poetry and create a PR that adds the urllib3 = "^1.26.16" dependency to Poetry's pyproject.toml, but something tells me there's probably some recondite reason for the omission of the dependency? Or has just no one gotten around to adding it?

Yes, there reason is that this bug is not present in Poetry anymore. This is only a case for non-standard installation which are discouraged.

[Telofy]

Oh, thx! There must've been something nonstandard about my environment because I used mamba/conda for another project. But now I'm running into #8679 instead of this one. ^.^

[LaoshuBaby]

To above all, why not check pip install poetry urllib3 requests --upgrade? I meet with this issue today when I run "poetry install", I can't downgrade urllib3 because other part of project lock the dependency version, and only upgrade those 2 like hungiito wrote won't work.

That's because I forgot to upgrade the most important poetry-1.4.1, and that version require urllib3<2.0.0,>=1.26.0

But now the latest version of poetry is 1.8.1, and everythings work fluently, don't need to manually edit any link in site-packages. Now what about try to upgrade those 3 package all?

♥

[hungiito]

@LaoshuBaby Have you tried upgrading urllib3 and requests outside of Poetry's virtual environment? In my case, I installed Poetry in a venv folder and noticed that Poetry uses the urllib3 in root environment rather than in venv directory

[LaoshuBaby]

@LaoshuBaby Have you tried upgrading urllib3 and requests outside of Poetry's virtual environment? In my case, I installed Poetry in a venv folder and noticed that Poetry uses the urllib3 in root environment rather than in venv directory

I did not specify a venv environment

[hungiito]

@LaoshuBaby Have you tried upgrading urllib3 and requests outside of Poetry's virtual environment? In my case, I installed Poetry in a venv folder and noticed that Poetry uses the urllib3 in root environment rather than in venv directory

I did not specify a venv environment

Can you try upgrading both pip and poetry

pip install --upgrade pip poetry

[LaoshuBaby]

@hungiito

To above all, why not check pip install poetry urllib3 requests --upgrade?
-- In my reply #7936 (comment)

I execute this command and upgrade everything to the latest, which can solve the problem originally raised by this issue.

Can you try upgrading both pip and poetry

You can do it without upgrading pip, but it will not cause problems if you upgrade it according to my test.

(In short, now my pip, requests, urllib3, and poetry are all up to date.)

That's why I recommend you upgrade(if you can) them.

[ChrCoello]

As @jeromegit wrote earlier, this is surely due to using Poetry 1.4.
Same error arose when we had to use conda (Azure ML Compute) as virtual environment manager (always try to avoid conda at any cost...). Then when one installs poetry on a freshly created conda environment using conda

conda install poetry

Poetry 1.4 is installed, by the same time downgrading urlib3 and requests.
Using pip to install Poetry solved the "issue", installing latest Poetry 1.8 without any downgrade

pip install poetry

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.