[build-system]
requires = ["setuptools >= 77.0.3"]
build-backend = "setuptools.build_meta"

[project]
name = "trl"
description = "Train transformer language models with reinforcement learning."
authors = [
    { name = "Leandro von Werra", email = "leandro.vonwerra@gmail.com" }
]
readme = { file = "README.md", content-type = "text/markdown" }
license = "Apache-2.0"
license-files = ["LICENSE"]
keywords = [
    "transformers", "huggingface", "language modeling", "post-training", "rlhf", "sft", "dpo", "grpo"
]
classifiers = [
    "Development Status :: 2 - Pre-Alpha",
    "Intended Audience :: Developers",
    "Intended Audience :: Science/Research",
    "Natural Language :: English",
    "Operating System :: OS Independent",
    "Programming Language :: Python :: 3",
    "Programming Language :: Python :: 3.10",
    "Programming Language :: Python :: 3.11",
    "Programming Language :: Python :: 3.12",
    "Programming Language :: Python :: 3.13",
    "Programming Language :: Python :: 3.14"
]
requires-python = ">=3.10"
dependencies = [
    "accelerate>=1.4.0",
    "datasets>=4.7.0",  # Support Json type and on_mixed_types="use_json"
    "jinja2",
    "packaging>20.0",
    "transformers>=4.56.2",
]
dynamic = ["version"]

[project.urls]
Homepage = "https://github.com/huggingface/trl"

[project.scripts]
trl = "trl.cli:main"

[project.optional-dependencies]
bco = [
    "scikit-learn",
    "joblib"
]
deepspeed = [
    "deepspeed>=0.14.4",
    "transformers!=5.1.0",  # see transformers#43780
]
kernels = [
    "kernels"
]
liger = [
    "liger-kernel>=0.7.0"
]
peft = [
    "peft>=0.8.0"
]
quality = [
    "pre-commit",
    "hf-doc-builder"
]
quantization = [
    "bitsandbytes"
]
scikit = [
    "scikit-learn"
]
test = [
    "pytest-cov",
    "pytest-datadir>=1.7.0",  # lazy datadirs
    "pytest-rerunfailures==15.1",
    "pytest-xdist",
    "pytest"
]
vllm = [
    "vllm>=0.12.0,<=0.18.0",
    "fastapi",
    "pydantic",
    "aiohttp>=3.13.3",
    "requests",
    "uvicorn"
]
vlm = [
    "Pillow",
    "torchvision",
    "num2words==0.5.14"
]
math_verify = [
    "math-verify>=0.5.2",
]
dev = [
    # bco
    "scikit-learn",
    "joblib",
    # deepspeed
    "deepspeed>=0.14.4",
    # kernels
    "kernels",
    # liger
    "liger-kernel>=0.7.0",
    # peft
    "peft>=0.8.0",
    # quality
    "pre-commit",
    "hf-doc-builder",
    # quantization
    "bitsandbytes",
    # scikit: included in bco
    # test
    "pytest-cov",
    "pytest-datadir>=1.7.0",  # lazy datadirs
    "pytest-rerunfailures==15.1",
    "pytest-xdist",
    "pytest",
    # vllm: not included in dev by default due to CUDA error; see GH-4228
    # vlm
    "Pillow",
    "torchvision",
    "num2words==0.5.14",
    # for response parsing (required for training with tools)
    "jmespath",
]

[tool.setuptools]
package-dir = {"trl" = "trl"}

[tool.setuptools.dynamic]
version = { file = "VERSION" }

[tool.coverage.run]
branch = true

[tool.ruff]
target-version = "py310"
line-length = 119
src = ["trl"]

[tool.ruff.lint]
ignore = [
    "B028", # warning without explicit stacklevel
    "C408", # dict() calls (stylistic)
    "C901", # function complexity
    "E501",
]
extend-select = ["E", "F", "I", "W", "UP", "B", "T", "C"]

[tool.ruff.lint.per-file-ignores]
# Allow prints in auxiliary scripts
"examples/**.py" = ["T201"]
"scripts/**.py" = ["T201"]
"trl/cli/**.py" = ["T201"]
"trl/skills/cli.py" = ["T201"]
# Ignore import violations in all `__init__.py` files.
"__init__.py" = ["F401"]

[tool.ruff.lint.isort]
lines-after-imports = 2
known-first-party = ["trl"]

[tool.pytest.ini_options]
markers = [
    "slow: marks tests as slow (deselect with '-m \"not slow\"')",
    "low_priority: marks tests as low priority (deselect with '-m \"not low_priority\"')"
]
norecursedirs = [
    "tests/experimental",
]
filterwarnings = [
    # SWIG deprecations from SWIG-generated C/C++ extensions: sentencepiece
    # Upstream issue: https://github.com/google/sentencepiece/issues/1150
    "ignore:builtin type SwigPyPacked has no __module__ attribute:DeprecationWarning",
    "ignore:builtin type SwigPyObject has no __module__ attribute:DeprecationWarning",
    "ignore:builtin type swigvarlink has no __module__ attribute:DeprecationWarning",

    # PyTorch JIT deprecations (upstream, not actionable in TRL)
    # Upstream issue: https://github.com/deepspeedai/DeepSpeed/issues/7835
    # Upstream PR: https://github.com/deepspeedai/DeepSpeed/pull/7840
    # Upstream fix released in deepspeed v0.18.6: https://github.com/deepspeedai/DeepSpeed/releases/tag/v0.18.6
    "ignore:`torch.jit.script_method` is deprecated:DeprecationWarning",
    "ignore:`torch.jit.script` is deprecated:DeprecationWarning",

    # PyTorch DataLoader pin_memory device argument deprecations
    # Triggered internally by torch.utils.data, not by our code
    # Upstream issue: https://github.com/pytorch/pytorch/issues/174546
    "ignore:The argument 'device' of Tensor.pin_memory:DeprecationWarning",
    "ignore:The argument 'device' of Tensor.is_pinned:DeprecationWarning",
]