By name: python-ml-layer description: | Core ML/AI Python environment with PyTorch, vLLM runtime deps, and CUDA support. Tier 2 environment-owner meta-layer that composes llama-cpp. Use when working with machine learning, PyTorch, HuggingFace, or GPU computing.
python-ml -- Core ML Python environment (Tier 2 meta-layer)
Candy Properties
| Property | Value |
|---|---|
| Dependencies | cuda |
| Sub-candies | llama-cpp |
| Install files | charly.yml, pixi.toml, task: |
Architecture: Tier 2 Environment-Owner Meta-Layer
This candy owns the pixi.toml for the core ML Python environment and composes the llama-cpp Tier 1 candy via candy: [llama-cpp]. Build order: pixi environment → llama-cpp (binaries) → python-ml user-phase tasks (vLLM wheel).
Environment Variables
| Variable | Value |
|---|---|
NVIDIA_PYTHON_PROJECT |
~/.pixi |
LD_LIBRARY_PATH |
/usr/lib64:$HOME/llama.cpp |
Plus from llama-cpp sub-candy:
| Variable | Value |
|---|---|
LLAMA_CPP_PATH |
~/llama.cpp |
| PATH (appended) | ~/llama.cpp |
Packages (pixi.toml)
PyPI: PyTorch >= 2.10.0 (CUDA 13.0), xformers, transformers, accelerate, safetensors, numpy, scipy, einops, pillow, kornia, spandrel, torchsde, vLLM runtime deps (blake3, flashinfer, numba, ray, xgrammar, etc.), gguf, pydantic, aiohttp
Post-pixi Installs (tasks:)
- vLLM 0.19 cu130 nightly wheel (
pip install --no-deps)
Used In Boxes
/charly-languages:python-ml/charly-immich:immich-ml
Related Candies
/charly-jupyter:llama-cpp— Sub-candy: llama.cpp binaries (composed viacandy:)/charly-distros:cuda— CUDA toolkit dependency/charly-jupyter:jupyter-ml— Full ML + Jupyter variant (superset of python-ml's pixi env)/charly-jupyter:unsloth-studio— Fine-tuning variant (similar pixi env + unsloth)
When to Use This Skill
Use when the user asks about:
- Machine learning Python environment
- PyTorch, transformers, or vLLM setup
- CUDA Python integration
- The
python-mlcandy, its packages, or its meta-layer composition - The two-tier candy architecture for ML candies
Related
/charly-image:layer— candy authoring reference (charly.ymlschema, task verbs, service declarations)/charly-check:check— declarative testing (check:block,charly check box,charly check live)