chore: modernize project tooling and packaging

.pre-commit-config.yaml

@@ -0,0 +1,30 @@
+default_language_version:
+  python: python3.11
+
+repos:
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.6.9
+    hooks:
+      - id: ruff
+        args: [--fix, --exit-non-zero-on-fix]
+      - id: ruff-format
+
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v5.0.0
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-yaml
+      - id: check-toml
+      - id: check-added-large-files
+      - id: check-merge-conflict
+      - id: debug-statements
+
+  - repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v1.11.2
+    hooks:
+      - id: mypy
+        additional_dependencies: [typing-extensions>=4.7.0]
+        args: [--config-file=pyproject.toml]
+        # Mirror run_mypy.sh: type-check the library and the examples directory.
+        files: ^(bitcointx|examples)/

pyproject.toml

@@ -0,0 +1,87 @@
+[build-system]
+requires = ["setuptools>=68.0", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "python-bitcointx"
+description = "A library for handling Bitcoin transactions and associated data"
+readme = "README.md"
+requires-python = ">=3.11"
+license = {text = "LGPL-3.0-or-later"}
+keywords = ["bitcoin"]
+classifiers = [
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
+    "License :: OSI Approved :: GNU Lesser General Public License v3 or later (LGPLv3+)",
+    "Topic :: Security :: Cryptography",
+    "Topic :: Software Development :: Libraries :: Python Modules",
+]
+dynamic = ["version"]
+# Runtime dependencies: none. Native dependencies (loaded at runtime via ctypes):
+#   - libsecp256k1 >= 0.3.0 and < 1.0.0 (tested with 0.4.0; 0.7.0+ supported via
+#     compatibility shim that detects both the old `secp256k1_ec_privkey_*`
+#     and the new `secp256k1_ec_seckey_*` symbol names).
+#   - libbitcoinconsensus (optional).
+dependencies = []
+
+[project.urls]
+Homepage = "https://github.com/Simplexum/python-bitcointx"
+Issues = "https://github.com/Simplexum/python-bitcointx/issues"
+
+[project.optional-dependencies]
+dev = [
+    "pytest>=7.4.0",
+    "coverage>=7.0.0",
+    "ruff>=0.6.0",
+    "mypy>=1.10.0",
+    "typing-extensions>=4.7.0",
+    "pre-commit>=3.7.0",
+]
+
+[tool.setuptools.dynamic]
+version = {attr = "bitcointx.__version__"}
+
+[tool.setuptools.packages.find]
+include = ["bitcointx*"]
+
+[tool.setuptools.package-data]
+bitcointx = ["py.typed"]
+
+[tool.ruff]
+line-length = 100
+target-version = "py311"
+extend-exclude = ["doc", "build", "dist"]
+
+[tool.ruff.lint]
+# Conservative starting set, keeping diffs small on legacy code.
+select = ["E", "F", "I", "W", "UP", "B"]
+ignore = [
+    "E501",  # line too long (long lines exist in legacy code and crypto tables)
+    "E741",  # ambiguous variable names (used in cryptographic spec translations)
+    "B008",  # do not perform function call in argument defaults
+    "B904",  # raise from ... (legacy code raises plain exceptions)
+    "UP006", # PEP 585 syntax (kept consistent with existing typing imports)
+    "UP007", # PEP 604 syntax (same reason)
+    "UP035", # deprecated import (typing aliases used intentionally)
+]
+
+[tool.ruff.lint.per-file-ignores]
+"bitcointx/core/_ripemd160.py" = ["E226", "E741"]
+"bitcointx/core/sha256.py" = ["E226", "E741"]
+"bitcointx/tests/*" = ["B011"]
+
+[tool.mypy]
+python_version = "3.11"
+strict = true
+files = ["bitcointx", "examples"]
+warn_unused_ignores = true
+warn_redundant_casts = true
+show_error_codes = true
+
+[tool.pytest.ini_options]
+testpaths = ["bitcointx/tests"]
+python_files = ["test_*.py"]
+python_classes = ["Test*"]
+python_functions = ["test_*"]

setup.py

@@ -1,37 +1,10 @@
-#!/usr/bin/env python
+"""Legacy setup shim.
 
-import os
+All project metadata lives in ``pyproject.toml``. This file remains only so
+that ``python setup.py <command>`` invocations continue to work for tools that
+have not yet switched to the PEP 517 build interface.
+"""
 
-from setuptools import setup, find_packages
+from setuptools import setup
 
-from bitcointx import __version__
-
-here = os.path.abspath(os.path.dirname(__file__))
-with open(os.path.join(here, 'README.md')) as f:
-    README = f.read()
-
-requires = []
-
-setup(
-    name='python-bitcointx',
-    version=__version__,
-    description='A library for handling Bitcoin transactions and associated data',
-    long_description=README,
-    long_description_content_type='text/markdown',
-    classifiers=[
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
-        "Programming Language :: Python :: 3.9",
-        "Programming Language :: Python :: 3.10",
-        "Programming Language :: Python :: 3.11",
-        "License :: OSI Approved :: GNU Lesser General Public License v3 or later (LGPLv3+)",
-    ],
-    python_requires='>=3.7',
-    url='https://github.com/Simplexum/python-bitcointx',
-    keywords='bitcoin',
-    packages=find_packages(),
-    zip_safe=False,
-    install_requires=requires,
-    test_suite="bitcointx.tests",
-    package_data={"bitcointx": ["py.typed"]}
-)
+setup()