James Lamb

**Is your feature request related to a problem? Please describe.** As of this writing, the latest 25.04 `libcuvs` wheels have the following sizes: | distribution | arch | size (compressed)...

[bug] "compiled" file count in `--inspect` misses static libraries

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### What did you expect to happen? The output of `pydistcheck --inspect` prints the number of compiled files within a distribution. https://github.com/jameslamb/pydistcheck/blob/471660ea780c9e65ab1e90b3e9f694e6cbea8bbe/src/pydistcheck/inspect.py#L26 That count appears to miss static libraries. ###...

[ci] Azure DevOps linux self-hosted runners not available

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## Description In this project, we use a pool of self-hosted runners (paid for by Microsoft) to run some Linux CI jobs in Azure DevOps: https://github.com/microsoft/LightGBM/blob/f91dcfee8baf5fe329bfddadf38577f6443fdf18/.vsts-ci.yml#L93 These stopped accepting jobs...

## Description On AppVeyor jobs, I see the following: ```text CondaError: Invalid spec for 'conda update': python=3.8[build=*_cp*] Use 'conda install' instead. ``` ([example build link](https://ci.appveyor.com/project/guolinke/lightgbm/builds/52229053/job/o2yadf3gagek8ws7)) This doesn't seem to be...

## Description Unit tests that assert that an error occurs should check that **a specific error** is raised. Like this in Python: https://github.com/microsoft/LightGBM/blob/6437645c4a0c17046be59e4f57d09952e2e0185f/tests/python_package_test/test_engine.py#L782-L783 And this in R: https://github.com/microsoft/LightGBM/blob/6437645c4a0c17046be59e4f57d09952e2e0185f/R-package/tests/testthat/test_basic.R#L209-L215 ## Benefits...

[python-package] on scikit-learn 1.6+, predict() raises misleading warning "X does not have valid feature names"

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## Description Starting with `scikit-learn` 1.6 (I think), `lightgbm.sklearn` estimators emit this warning in `predict()`, even when the data passed to `fit()` did not have feature names (e.g. was just...

[ci] [python-package] [dask] dask tests failing: unexpected tuple return value somewhere

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## Description Most Dask tests are failing, with errors like this: ```text Exception: "TypeError('Data must be one of: numpy arrays, pandas dataframes, sparse matrices (from scipy). Got tuple.')" ``` With...

[RFC] [CUDA] distribute Python wheels with CUDA support

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## Summary Using the `lightgbm` Python package with CUDA support currently requires either installing it with `conda` or building it from source. LightGBM should provide pre-compiled wheels supporting at least...

[ci] [python-package] [R-package] support MUSL-based Linux distributions (like Alpine)

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## Summary Opening this issue to track the idea of adding support for MUSL-based Linux distributions (particularly Alpine Linux) here. ## Motivation Alpine Linux is a really popular options for...

Run forest_inference_demo notebook in CI

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## Description You can see that in the output of `conda-notebook-tests` CI jobs: ```text -------------------------------------------------------------------------------- SKIPPING: ./forest_inference_demo.ipynb (suspected Dask usage, not currently automatable) -------------------------------------------------------------------------------- ``` ([build link](https://github.com/rapidsai/cuml/actions/runs/15349653484/job/43195625218#step:11:1700)) That notebook is...