(and/or a way to explore the generated pex environment to see what was actually built?)

Hey Pants, we're seeing an error about using

--changed-since

at the same time as target arguments but it's not in the command at all:

./pants import-fixer --jobs=cross-imports --import-fixer-output-file=cross_imports_output.json app/::
17:27:47.34 [INFO] Initializing scheduler...
17:27:47.50 [INFO] Scheduler initialized.
17:27:47.53 [ERROR] You used `--changed-since` at the same tie as using target arguments. Please use only one.
Traceback (most recent call last):
  ​File "/home/ubuntu/workspace/backend_master/.cache/pants/setup/bootstrap-Linux-x86_64/2.5.1rc3_py38/lib/python3.8/ite-packages/pants/bin/daemon_pants_unner.py", line 125, in single_daemonized_run
    ​runner = LocalPantsRunner.create(
  ​File "/home/ubuntu/workspace/backend_master/.cache/pants/setup/bootstrap-Linux-x86_64/2.5.1rc3_py3/lib/python3.8/site-package/pants/bin/local_pants_runner.py", line 150, in create
    ​specs = calculate_specs(
  ​File "/home/ubuntu/workspace/backend_master/.cache/pants/setup/bootstrap-Linux-x86_64/2.5.1rc3_py38/lib/pthon3.8/site-packages/pants/init/specs_calculator.py", line 47, in calculate_specs
    ​raise InvalidSpecConstraint(
pants.init.specs_calculator.InvalidSpecConstraint: You used `--changed-since` at the same time as using target arguments. Please use only one.
+ ./pants import-fixer --jobs=wildcard-imports --ignore-skip --json-output --import-fixer-output-file=wildcard_imports_output.json app/::
17:27:48.10 [ERROR] You used `--changed-since` at the same time as using target arguments. Please use only one.
Traceback (most recent call last):
  ​File "/home/ubuntu/workspace/backend_master/.cache/pants/setup/bootstrap-Linux-x86_64/2.5.1rc3_py38/lib/python3.8/site-packages/pants/bin/daemon_pants_runner.py", line 125, in single_daemonized_run
    ​runner = LocalPantsRunner.create(
  ​File "/home/ubuntu/workspace/backend_master/.cache/pants/setup/bootstrap-Linux-x86_64/2.5.1rc3_py38/lib/python3.8/site-packages/pants/bin/ocal_pants_runner.py", line 150, in create
    ​specs = calculatespecs(
  ​File "/home/ubuntu/workspace/backend_master/.cache/pants/setup/bootstrp-Linux-x86_64/2.5.1rc3_py38/lib/python3.8/site-packages/pants/init/specs_calculator.py", line 47, in calculat_specs
    ​raise InvalidSpecConstraint(
pants.init.specs_calculator.InvalidSpecConstraint: Youused `--changed-since` at the same time as using target arguments. Please use only one.

I tested the goal locally with no issues. Any ideas why this would happen?

If I want to test using a branch, is there something I use in my pants.toml? I want to test 0182de9814c7694eed2b9407e3577684db26ea2e on 2.6.x (poetry_requirements)

Hey everyone, I'd like to use semantic version constraints in my projects based on my pyproject files. Is there any experiments to make this work? If not, is it something I can write a pants plugin to do or would it require some re-architecture of internals to make pants work with something like poetry?

Would anyone be able to give me a few hints at what I've done wrong with my setup? I have some basics working but I'm not sure how to fix the rough edges I have. https://github.com/Incognito/python-architecture-linter/pull/14 1. It will infer

click

but not

astroid

, did I do something to confuse it? 2. I can't seem to run tests Also any general "this is bad style" feedback is welcome, I'm unfamiliar with the library still and open to find out more. The ultimate goal is to release 3 pypi packages via a CI/CD pipeline once I'm done.

I've got a dependency on

pyrealsense2

and I need to build a cross-platform

.pex

that will run on OSX and Linux. I'm building on Linux. I've manually built the right

.whl

file on OSX and uploaded it to a private GCP-based PyPi repo. The following works fine in a

venv

in which I'm running pants:

pip install --trusted-host /us-central1-python.pkg.dev --index-url <https://us-central1-python.pkg.dev/infrastructure-314723/python-deps/> --platform macosx_10_15_x86_64 --implementation cp --python-version 37 --abi cp37m --only-binary :all: --target /tmp pyrealsense2

However, a

./pants package /path/to/thing

fails with:

$ ./pants package realsense/cli/
12:49:06.11 [INFO] Completed: Resolving 3 requirements: matplotlib, numpy, pyrealsense2
12:49:06.11 [ERROR] Exception caught: (pants.engine.internals.scheduler.ExecutionError)
  File "/home/oliver/.cache/pants/setup/bootstrap-Linux-x86_64/2.4.0_py38/lib/python3.8/site-packages/pants/bin/local_pants_runner.py", line 229, in _run_inner
    return self._perform_run(goals)
  File "/home/oliver/.cache/pants/setup/bootstrap-Linux-x86_64/2.4.0_py38/lib/python3.8/site-packages/pants/bin/local_pants_runner.py", line 168, in _perform_run
    return self._perform_run_body(goals, poll=False)
  File "/home/oliver/.cache/pants/setup/bootstrap-Linux-x86_64/2.4.0_py38/lib/python3.8/site-packages/pants/bin/local_pants_runner.py", line 185, in _perform_run_body
    return self.graph_session.run_goal_rules(
  File "/home/oliver/.cache/pants/setup/bootstrap-Linux-x86_64/2.4.0_py38/lib/python3.8/site-packages/pants/init/engine_initializer.py", line 135, in run_goal_rules
    exit_code = self.scheduler_session.run_goal_rule(
  File "/home/oliver/.cache/pants/setup/bootstrap-Linux-x86_64/2.4.0_py38/lib/python3.8/site-packages/pants/engine/internals/scheduler.py", line 530, in run_goal_rule
    self._raise_on_error([t for _, t in throws])
  File "/home/oliver/.cache/pants/setup/bootstrap-Linux-x86_64/2.4.0_py38/lib/python3.8/site-packages/pants/engine/internals/scheduler.py", line 498, in _raise_on_error
    raise ExecutionError(

Exception message: 1 Exception encountered:

  ProcessExecutionFailure: Process 'Resolving 3 requirements: matplotlib, numpy, pyrealsense2' failed with exit code 1.
stdout:

stderr:
ERROR: Could not find a version that satisfies the requirement pyrealsense2
ERROR: No matching distribution found for pyrealsense2
pid 587331 -> /home/oliver/.pyenv/versions/3.7.10/bin/python3.7 /home/oliver/.cache/pants/named_caches/pex_root/pip.pex/cf4106b4c7898b462f7c172dde686a9747103f1a --disable-pip-version-check --no-python-version-warning --exists-action a --isolated -q --cache-dir /home/oliver/.cache/pants/named_caches/pex_root --log /tmp/process-executionntUtWf/.tmp/tmpmzcd3hpx/pip.log download --dest /tmp/process-executionntUtWf/.tmp/tmps_6hxe4q/macosx_10_15_x86_64-cp-37-cp37m --platform macosx_10_15_x86_64 --implementation cp --python-version 37 --abi cp37m --only-binary :all: --constraint constraints.txt matplotlib numpy pyrealsense2 --index-url <https://pypi.org/simple/> --find-links <https://us-central1-python.pkg.dev/infrastructure-314723/python-deps/> --retries 5 --timeout 15 exited with 1 and STDERR:
None



(Use --print-stacktrace to see more error details.)

Note that the command line Pants is generating seems to be saying to use my private repo at

<https://us-central1-python.pkg.dev/infrastructure-314723/python-deps/>

. However, I suspect that doesn't know about Google's auth stuff which I did set up correctly with

pip

(see the successful pip install above). Or maybe the issue is that

pyrealsense2

for Linux is coming from

<http://pypi.org|pypi.org>

while for OSX it needs to come from a different repo?? Any help would be appreciated.

https://twitter.com/pantsbuild/status/1412856914992640019 Hey, who’s hiring Python devs? We’ve got a lot of great engineers in the Pants community, and since they’re Pants users and contributors you know they arrive with great habits around code quality and testing. Twitter

https://twitter.com/pantsbuild/status/1412858099900325890 We’ve got news for you really soon. You’re gonna be delighted with the newest feature coming to Pants 2. Can't wait to share it with you! 📘 Twitter

https://twitter.com/pantsbuild/status/1412859884299853825 Pants 2: a cutting-edge build system, and more. Uses dependency inference to cut out much of the boilerplate and hassle that other systems require. Pants 2 is flexible, ergonomic, extensible, meets you where you are, and is easy to get started. Got Python? https://t.co/XFyTAk4btA Twitter

https://twitter.com/gordon_cassie/status/1412871233792741378 Pants Build retweeted: @pantsbuild Always hiring python devs @imanageinc and we are big fans of 👖 on the @ClosingFolders product line https://imanage.com/about/careers/ Twitter

https://twitter.com/ThePSF/status/1412910304720207875 Pants Build retweeted: "I was a speaker at PyCon US 2021 and I wanted to extend a thank you for the incredible opportunity. It was an impo… https://twitter.com/i/web/status/1412910304720207875 Twitter

https://twitter.com/MariuszFelisiak/status/1413030999357861890 Pants Build retweeted: Django 4️⃣ supports "--shuffle" 🎰 to execute tests in a random order🎲Thanks to @cjerdonek 🏆🎉https://github.com/django/django/commit/90ba716bf060ee7fef79dc230b0b20644839069f Twitter

Curious to hear from people who are using

python_awslambda

build target. How are you handling the deployment piece? With the limited lambda work we have done we used the serverless framework which took care of both building and deploying to AWS.

I am wondering how everyone is using pants tailor? do you have it run in a git hook? or some automatically some other way? or only manually?

Howdie, I find the rule graph thingy extraordinary useful and powerful. Would love to be able to use it in other projects. How generic is it? Thinking, would it be feasible to extract it as a separate library package for generic use.. ?

Ok, another stab at rule graph issues… I’m struggling a bit with addressing the issue reported here: https://github.com/pantsbuild/pants/pull/11872/checks?check_run_id=3027274218

thanks for all the help/docs improvements @fresh-cat-90827! much appreciated.

Are there any instructions on how to run pants in an airgapped environment? I see specific call-outs of needing to bootstrap itself from the internet.

Hey again! It's been a while. I wanted to check in and see if anyone has been using pants solely for its dependency inference and build graph mapping capabilities; i.e., just using

./pants list

and friends as ways to generate input for other build tools? I ask this because I'm looking for a way to introduce this at my new org, but there's a lot of build work already done that is deeply incompatible with the pants way of doing things, and just trying to get that all working in pants' model on the side would be a big, high-risk project. It seems more sane to try to introduce it slowly.

Are there any astroid / pylint wizards here? I need to rework a pylint plugin so that it works with the pants assumption that transitive deps don't get imported. This plugin uses

__import__()

on matching classes to extract a dictionary property from the class. Here's the plugin https://github.com/st2sandbox/st2/blob/pants/pylint_plugins/api_models.py#L49-L52 Example matching class's

schema

property: https://github.com/st2sandbox/st2/blob/pants/st2common/st2common/models/system/actionchain.py#L125-L149 Maybe astroid provides a way to get the dictionary?

OK. My last issue with pylint + pants. An edge case where pylint needs some transitive deps due to some

from ... import *

imports. This import: https://github.com/st2sandbox/st2/blob/pants/st2common/st2common/services/datastore.py#L22

from st2client.models import KeyValuePair

comes from this file (yes I have

[python-infer].inits = true

in pants.toml): https://github.com/st2sandbox/st2/blob/pants/st2client/st2client/models/__init__.py#L25

from st2client.models.keyvalue import *  # noqa

which brings in the transitive dep: https://github.com/st2sandbox/st2/blob/pants/st2client/st2client/models/keyvalue.py#L26

class KeyValuePair(core.Resource):

If I run the full suite with

./pants lint ::

, pylint succeeds (except for a known real failure somewhere else). But using a narrow target:

./pants lint ./st2common/st2common/services::

pylint fails with:

st2common/st2common/services/datastore.py:22:0: E0611: No name 'KeyValuePair' in module 'st2client.models' (no-name-in-module)

Inspecting the process-execution dir with

--no-process-execution-local-cleanup

shows that

st2client/st2client/models/keyvalue.py

is not included, which makes sense since it is not directly imported in

st2common/st2common/services/datastore.py

. Is there a way to get

*

imports to count as direct imports when pants is putting thing together for pylint?

Hi all. I added a Dockerfile to github.com/ehiggs/pants-poetry-test-repos which works nicely. I have a branch now, however,

multiple-applications

, which seems to run into an issue with the same module name being used for two applications. With project-app/app.py and project-app-async/app.py I get the following:

./pants run project-app:project-app
15:02:53.57 [WARN] The pex_binary target project-app has the field `entry_point='app.py'`, which maps to the Python module `app`, but Pants cannot safely infer a dependency because more than one target owns this module, so it is ambiguous which to use: ['project-app-async/app.py:project-app-async0', 'project-app/app.py:project-app0'].

I haven't seen how to fix this without changing the name of the file and that's not really a solution. I tried to make

entry_point='project-app/app.py:project-app0'

but that didn't work so the error message is a bit weird that it looks like it wants me to specify which target resolution to use but then it won't let me use the target resolution (is that even a name for this?)

Hello everyone. I am running into a small issue with my python interpreters today when running pants commands. Hoping someone here has seen this before. I am on pants

2.5.0

running in a python

3.9.6

pyenv environment. I also have python

3.8.11

and python

3.6.12

installed via pyenv as we need those versions for our interpreter constraints for some of our servers. pants.toml

[python-setup]
resolve_all_constraints = true
interpreter_constraints = ['CPython>=3.6,<3.7']
requirement_constraints = '3rdparty/python/constraints.txt'
interpreter_search_paths = [
    '<PYENV>',
    '<PATH>',
]

It finds the 3.6.12 interpreter but i get errors like this when trying to resolve the constraints.

WARNING: Requirement '/tmp/process-executionlIuSO7/.tmp/tmpfyzwz_5c/home.centos..pyenv.versions.3.6.12.bin.python3.6/pyOpenSSL-20.0.1-py2.py3-none-any.whl' looks like a filename, but the file does not exist
ERROR: Could not install packages due to an EnvironmentError: [Errno 2] No such file or directory: '/tmp/process-executionlIuSO7/.tmp/tmpfyzwz_5c/home.centos..pyenv.versions.3.6.12.bin.python3.6/pyOpenSSL-20.0.1-py2.py3-none-any.whl'

Anyone see this before?

After further investigation… The contents of the temp dirs are empty. ITs like it cannot download the 3rd party deps or its putting them somewhere else … then looking for them in the wrong place

https://twitter.com/AlSweigart/status/1414652367140753412 Pants Build retweeted: Have you "learned" Python but when you want to start a new program, find yourself staring at a blank editor, not kn… https://twitter.com/i/web/status/1414652367140753412 Twitter

https://twitter.com/gvanrossum/status/1414655999177216005 Pants Build retweeted: Wow! The last beta of 3.10 already. People, do test this! Twitter Wow! A Python release on the weekend? Do the release management team even rest😴? You better believe it because this… https://twitter.com/i/web/status/1414240465889775621 Twitter

more updates… it packages no issues if i set

resolve_all_constraints=false

. maybe specific to only some of the dependencies??

Hmm, this is not ringing any bells

@happy-kitchen-89482 looks like its only with specific dependencies… and only when they try to resolve.

Are you able to reproduce this in a minimal repo that you could expose?