add Cython configuration

pdm.lock

@@ -5,7 +5,7 @@
 groups = ["default", "dev", "lint", "nb", "tests"]
 strategy = ["inherit_metadata"]
 lock_version = "4.5.0"
-content_hash = "sha256:fdc7b9b5d89abe575d708e809c823d506cd743ed354efd14bbe662a23e7b9fd9"
+content_hash = "sha256:3b6355e97f9ec4986d016609fce5a358357a894972810f07bcedd274117446d2"
 
 [[metadata.targets]]
 requires_python = ">=3.11,<3.14"
@@ -379,6 +379,24 @@ files = [
     {file = "bracex-2.6.tar.gz", hash = "sha256:98f1347cd77e22ee8d967a30ad4e310b233f7754dbf31ff3fceb76145ba47dc7"},
 ]
 
+[[package]]
+name = "build"
+version = "1.3.0"
+requires_python = ">=3.9"
+summary = "A simple, correct Python build frontend"
+groups = ["dev"]
+dependencies = [
+    "colorama; os_name == \"nt\"",
+    "importlib-metadata>=4.6; python_full_version < \"3.10.2\"",
+    "packaging>=19.1",
+    "pyproject-hooks",
+    "tomli>=1.1.0; python_version < \"3.11\"",
+]
+files = [
+    {file = "build-1.3.0-py3-none-any.whl", hash = "sha256:7145f0b5061ba90a1500d60bd1b13ca0a8a4cebdd0cc16ed8adf1c0e739f43b4"},
+    {file = "build-1.3.0.tar.gz", hash = "sha256:698edd0ea270bde950f53aed21f3a0135672206f3911e0176261a31e0e07b397"},
+]
+
 [[package]]
 name = "bump-my-version"
 version = "1.2.4"
@@ -527,7 +545,7 @@ version = "0.4.6"
 requires_python = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
 summary = "Cross-platform colored terminal text."
 groups = ["default", "dev", "nb", "tests"]
-marker = "sys_platform == \"win32\" or platform_system == \"Windows\""
+marker = "sys_platform == \"win32\" or os_name == \"nt\" or platform_system == \"Windows\""
 files = [
     {file = "colorama-0.4.6-py2.py3-none-any.whl", hash = "sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6"},
     {file = "colorama-0.4.6.tar.gz", hash = "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44"},
@@ -3077,6 +3095,17 @@ files = [
     {file = "pyparsing-3.2.5.tar.gz", hash = "sha256:2df8d5b7b2802ef88e8d016a2eb9c7aeaa923529cd251ed0fe4608275d4105b6"},
 ]
 
+[[package]]
+name = "pyproject-hooks"
+version = "1.2.0"
+requires_python = ">=3.7"
+summary = "Wrappers to call pyproject.toml-based build backend hooks."
+groups = ["dev"]
+files = [
+    {file = "pyproject_hooks-1.2.0-py3-none-any.whl", hash = "sha256:9e5c6bfa8dcc30091c74b0cf803c81fdd29d94f01992a7707bc97babb1141913"},
+    {file = "pyproject_hooks-1.2.0.tar.gz", hash = "sha256:1e859bd5c40fae9448642dd871adf459e5e2084186e8d2c2a79a824c970da1f8"},
+]
+
 [[package]]
 name = "pytest"
 version = "8.4.2"

pyproject.toml

@@ -11,9 +11,13 @@ readme = "README.md"
 license = {text = "LicenseRef-Proprietary"}
 
 [build-system]
-requires = ["pdm-backend"]
+requires = ["pdm-backend", "Cython", "setuptools"]
 build-backend = "pdm.backend"
 
+[tool.pdm.build]
+package-dir = "src"
+run-setuptools = true
+
 
 [tool.ruff]
 line-length = 94
@@ -116,9 +120,6 @@ replace = "version = \"{new_version}\""
 [tool.pdm]
 distribution = true
 
-[tool.pdm.build]
-package-dir = "src"
-
 [tool.pdm.resolution]
 respect-source-order = true
 
@@ -145,6 +146,7 @@ dev = [
     "nox>=2025.2.9",
     "cython>=3.1.4",
     "setuptools>=80.9.0",
+    "build>=1.3.0",
 ]
 nb = [
     "jupyterlab>=4.3.5",

setup.py

@@ -0,0 +1,7 @@
+from Cython.Build import cythonize
+from setuptools import setup
+
+ext_modules = cythonize(["src/dopt_sensor_anomalies/detection.py"])
+
+
+setup(ext_modules=ext_modules)