chore: migrate config files to `pyproject.toml` (#1373)

* chore: move configs to pyproject.toml

* fix: drop file from CI workflow

* feat: reorder pytest markers

* chore: retain comments

* chore(build): migrate build data to pyproject
Co-authored-by: Matthew Douglas <38992547+matthewdouglas@users.noreply.github.com>

* Apply suggestions from code review
Co-authored-by: Aarni Koskela <akx@iki.fi>

* chore: move configs to pyproject.toml

* Apply suggestions from code review
Co-authored-by: Aarni Koskela <akx@iki.fi>

* bump ruff

---------
Co-authored-by: Matthew Douglas <38992547+matthewdouglas@users.noreply.github.com>
Co-authored-by: Aarni Koskela <akx@iki.fi>

.github/workflows/python-package.yml

@@ -14,7 +14,6 @@ on:
       - "requirements*.txt"
       - "setup.py"
       - "pyproject.toml"
-      - "pytest.ini"
   release:
     types: [published]
   workflow_dispatch: {} # Allow manual trigger

pyproject.toml

 [build-system]
-requires = [ "setuptools", "wheel" ]
+requires = ["setuptools >= 63.0.0"]
 build-backend = "setuptools.build_meta"
 
+[project]
+name = "bitsandbytes"
+dynamic = ["version"]
+description = "k-bit optimizers and matrix multiplication routines."
+authors = [{name="Tim Dettmers", email="dettmers@cs.washington.edu"}]
+requires-python = ">=3.8"
+readme = "README.md"
+license = {file="LICENSE"}
+keywords = [
+    "gpu",
+    "optimizers",
+    "optimization",
+    "8-bit",
+    "quantization",
+    "compression"
+]
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "License :: OSI Approved :: MIT License",
+    "Environment :: GPU :: NVIDIA CUDA :: 11",
+    "Environment :: GPU :: NVIDIA CUDA :: 12",
+    "Intended Audience :: Developers",
+    "Intended Audience :: Science/Research",
+    "Operating System :: POSIX :: Linux",
+    "Operating System :: MacOS",
+    "Operating System :: Microsoft :: Windows",
+    "Programming Language :: C++",
+    "Programming Language :: Python :: Implementation :: CPython",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Topic :: Scientific/Engineering :: Artificial Intelligence"
+]
+dependencies = [
+    "torch>=1.11,!=1.12.0",
+    "numpy>=1.17"
+]
+
+[project.optional-dependencies]
+benchmark = ["pandas", "matplotlib"]
+docs = ["hf-doc-builder==0.5.0"]
+dev = [
+    "bitsandbytes[test]",
+    "build>=1.0.0,<2",
+    "ruff==0.6.9",
+    "pre-commit>=3.5.0,<4",
+    "wheel>=0.42,<1"
+]
+test = [
+    "einops~=0.6.0",
+    "lion-pytorch==0.0.6",
+    "pytest~=7.4",
+    "scipy>=1.10.1,<2; python_version < '3.9'",
+    "scipy>=1.11.4,<2; python_version >= '3.9'",
+    "transformers>=4.30.1,<5"
+]
+triton = ["triton~=2.0.0; sys_platform=='linux' and platform_machine=='x86_64'"]
+
+[project.urls]
+homepage = "https://github.com/TimDettmers/bitsandbytes"
+changelog = "https://github.com/TimDettmers/bitsandbytes/blob/main/CHANGELOG.md"
+docs = "https://huggingface.co/docs/bitsandbytes/main"
+issues = "https://github.com/TimDettmers/bitsandbytes/issues"
+
+[tool.setuptools]
+package-data = { "*" = ["libbitsandbytes*.*"] }
+
+[tool.setuptools.dynamic]
+version = {attr = "bitsandbytes.__version__"}
+
+[tool.pytest.ini_options]
+addopts = "-rP"
+#    ; --cov=bitsandbytes
+#    ; # contexts: record which test ran which line; can be seen in html coverage report
+#    ; --cov-context=test
+#    ; --cov-report html
+log_cli = true
+log_cli_level = "INFO"
+log_file = "logs/pytest.log"
+markers = [
+    "benchmark: mark test as a benchmark",
+    "deprecated: mark test as covering a deprecated feature",
+    "slow: mark test as slow",
+]
+
 [tool.ruff]
 src = [
     "bitsandbytes",

pytest.ini

-[pytest]
-addopts = -rP
-    ; --cov=bitsandbytes
-    ; # contexts: record which test ran which line; can be seen in html coverage report
-    ; --cov-context=test
-    ; --cov-report html
-
-log_cli = True
-log_cli_level = INFO
-log_file = logs/pytest.log
-markers =
-    benchmark: mark test as benchmark
-    slow: mark test as slow
-    deprecated: mark test as covering a deprecated feature

requirements-ci.txt

-# Requirements used for GitHub actions
-pytest==8.3.3
-einops==0.8.0
-lion-pytorch==0.2.2
-scipy==1.10.1; python_version < "3.9"
-scipy==1.14.1; python_version >= "3.9"

requirements-dev.txt

-# Requirements used for local development
-setuptools>=63
-pytest~=8.3.3
-einops~=0.8.0
-wheel~=0.44.0
-lion-pytorch~=0.2.2
-scipy~=1.14.1
-pandas~=2.2.2
-matplotlib~=3.9.2

setup.py

@@ -2,20 +2,9 @@
 #
 # This source code is licensed under the MIT license found in the
 # LICENSE file in the root directory of this source tree.
-import glob
-import os
-
 from setuptools import find_packages, setup
 from setuptools.dist import Distribution
 
-libs = list(glob.glob("./bitsandbytes/libbitsandbytes*.*"))
-libs = [os.path.basename(p) for p in libs]
-print("libs:", libs)
-
-
-def read(fname):
-    return open(os.path.join(os.path.dirname(__file__), fname), encoding="utf8").read()
-
 
 # Tested with wheel v0.29.0
 class BinaryDistribution(Distribution):
@@ -23,27 +12,4 @@ class BinaryDistribution(Distribution):
         return True
 
 
-setup(
-    name="bitsandbytes",
-    version="0.45.1.dev0",
-    author="Tim Dettmers",
-    author_email="dettmers@cs.washington.edu",
-    description="k-bit optimizers and matrix multiplication routines.",
-    license="MIT",
-    keywords="gpu optimizers optimization 8-bit quantization compression",
-    url="https://github.com/bitsandbytes-foundation/bitsandbytes",
-    packages=find_packages(),
-    package_data={"": libs},
-    install_requires=["torch", "numpy", "typing_extensions>=4.8.0"],
-    extras_require={
-        "benchmark": ["pandas", "matplotlib"],
-        "test": ["scipy", "lion_pytorch"],
-    },
-    long_description=read("README.md"),
-    long_description_content_type="text/markdown",
-    classifiers=[
-        "Development Status :: 4 - Beta",
-        "Topic :: Scientific/Engineering :: Artificial Intelligence",
-    ],
-    distclass=BinaryDistribution,
-)
+setup(version="0.45.1.dev0", packages=find_packages(), distclass=BinaryDistribution)