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fix(setup): install mlx-lm and mlx-audio in setup-python on Apple Silicon (#892)

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* fix(setup): install mlx-lm and mlx-audio in setup-python on Apple Silicon

The dev setup installed requirements-mlx.txt but not mlx-audio/mlx-lm
themselves, so POST /transcribe failed on a fresh Apple Silicon setup
with "No module named 'mlx_audio'" (then "No module named 'mlx_lm'").
The release workflow already installs both with --no-deps (they declare
transformers>=5.x, conflicting with our <=4.57.x cap); mirror that in
the setup-python recipe with the same pins.

Co-Authored-By: Claude Fable 5 <[email protected]>

* test: add MLX smoke test for the --no-deps mlx-audio/mlx-lm install

mlx-audio and mlx-lm are installed --no-deps, so a missing transitive
dependency only surfaces at import time. Add a pytest-discoverable
smoke test (skipped off Apple Silicon) covering the exact entry points
the backend uses: mlx_audio.tts.load, mlx_audio.stt.load (which also
exercises the miniaudio dep from issue #505), mlx_lm.load/generate,
and a basic mlx.core op.

Co-Authored-By: Claude Fable 5 <[email protected]>

---------

Co-authored-by: Claude Fable 5 <[email protected]>
This commit is contained in:
Gregoire Moreels
2026-07-20 22:26:46 -07:00
committed by GitHub
co-authored by Claude Fable 5
parent 91cd6df108
commit f750596364
3 changed files with 63 additions and 1 deletions
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backend/requirements-mlx.txt
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@@ -16,7 +16,8 @@ miniaudio>=1.59
# mlx_audio.stt.load) works fine on transformers 4.57.x in practice.
#
# Install it via `pip install --no-deps mlx-audio==0.4.1` after this file
# (see .github/workflows/release.yml). Most other mlx-audio runtime deps
# (see .github/workflows/release.yml and the setup-python recipe in the
# justfile). Most other mlx-audio runtime deps
# (huggingface_hub, librosa, mlx-lm, numba, numpy, protobuf, pyloudnorm,
# sounddevice, tqdm) are already in requirements.txt or pulled in by
# other engines.