Hey all, does anyone know what I'm doing wrong?

$ pants generate-lockfiles 
16:20:51.53 [INFO] Initializing scheduler...
16:20:53.64 [INFO] Scheduler initialized.
...
16:29:37.97 [ERROR] 1 Exception encountered:

Engine traceback:
  in `generate-lockfiles` goal

IntrinsicError: Error downloading file: error sending request for url (<https://github.com/astral-sh/python-build-standalone/releases/download/20250610/cpython-3.10.18%2B20250610-x86_64-unknown-linux-gnu-install_only_stripped.tar.gz>)

I'm on a network with no direct access to the internet, i have my

http_proxy

and

https_proxy

set correctly, everything else on my system is correctly able to reach the internet through the proxy I have the following in my

pants.toml

as per the documentation:

[subprocess-environment]
# pull in proxy settings from environment and pass them through to all subprocesses
env_vars = [
    "http_proxy",
    "https_proxy",
    "no_proxy",
    "HTTP_PROXY",
    "HTTPS_PROXY",
    "NO_PROXY",
]

but still every pants operation requiring the internet fails...

Proxies are like half of our problem. If I'm reading that correctly, the problem might be coming from the Pants runner trying to access the network, rather than "pants" itself. https://github.com/pantsbuild/scie-pants?tab=readme-ov-file#firewall-support I don't believe we publish fat scie-pants yet, rather we lazy load.

Hi @wide-midnight-78598, thanks for this, but i don't believe that's the issue I'm facing. For one, I already have pants installed, the pants runner has been installed for quite some time, and it has already sourced its own interpreter (cpython3.11) For another, i've not had issues with ptex or any scie i've tested / built on this dev machine Additionally, I've tried replicating @breezy-electrician-41537 solution from that linked issue, I've launched a clean bash shell (

env -i bash --noprofile --norc

) and recreated just the

http_proxy

,

https_proxy

,

HTTP_PROXY

,

HTTPS_PROXY

and

PATH

variables, and I still get the same issue

Copy code

IntrinsicError: Error downloading file: error sending request for url (<https://github.com/astral-sh/python-build-standalone/releases/download/20250610/cpython-3.10.18%2B20250610-x86_64-unknown-linux-gnu-install_only_stripped.tar.gz>)

What is downloading python 3-10?

In fact, I found another GH issue also by @breezy-electrician-41537 that seems to be exactly what I'm facing: https://github.com/pantsbuild/scie-pants/issues/468 except he reports getting it to work by switching to pants 2.27. I tried that, and i'm still getting the same error

And I also commented there about proxies being a pain in the ass for us

Thanks @wide-midnight-78598! Let me know if I can help in any way

If you'd know how to make a failing case using podman/docker/lxc - that would be handy 😆

This has nothing to do with scie-pants as evidenced by the Pants log lines. Once Pants is logging, scie-pants is long done it's work.

You're right @brief-scientist-13682, I am using the python-build-standalone backend. I'm trying to convert my existing monorepo to using pants, and my existing tooling is built on PBS

You did not configure it to, that doc you found has been misleading since it's inception. Those env vars you poked holes for only apply to Python subprocesses and not to Pants globally. Pants maintainers know about this lie, but it has managed to go unaddressed for years.

i see...

Yeah, so some Pants interested person - could be you - needs to step up. I just maintain Pex, but thought I'd spend 15 minutes root causing this one.

i really appreciate all your help! I'm checking issues on the pants repo / opening a new one if there isn't one. whether or not i can go a step further and make a PR... i don't know. i've only just started using pants as a user, i haven't delved into the codebase yet, but we'll see

Well, you might step back and ask yourself why Pants with no daemon sees all env vars but with the daemon masks some. I don't know the answer myself, but sounds fishy. The daemon is technically optional and just a speed hack.

Thanks John, I’d already setup some cases inside of containers (for other Pants issues), and then I added proxy functionality into those. Seems to work adequately

by the way @wide-midnight-78598 i opened a GH issue and PR for this on the 4th, and haven't had any movement from any maintainers / contributors. Thinking maybe it got lost in the noise and shuffle... would you be able to take a look? https://github.com/pantsbuild/pants/pull/22933

Maybe got lost in the end of the year vacations and pre-holiday hectic-ness, I'll try to take a look when I'm available for more than a 15 minute burst 😩