[FEAT] Add mixed distributions.

.github/CODEOWNERS

@@ -0,0 +1,2 @@
+# Every file is owned by the maintainer; pull requests need their review.
+* @genedan

.github/workflows/tests.yml

@@ -10,6 +10,34 @@ permissions:
   contents: read
 
 jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+      - name: Ruff
+        run: |
+          pip install ruff
+          ruff check .
+          ruff format --check .
+
+  typecheck:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+          cache: pip
+      - name: Install
+        run: pip install ".[dev]"
+      - name: Pyright
+        run: pyright
+      - name: Type completeness
+        run: pyright --verifytypes fcaz --ignoreexternal
+
   test:
     runs-on: ubuntu-latest
     strategy:

.gitignore

@@ -1,9 +1,10 @@
 .idea/
-.venv/docs/_build/
-docs/api/generated/
+.venv/
+build/
+dist/
 docs/_build/
+docs/api/generated/
 *.egg-info/
 __pycache__/
 coverage.xml
 .coverage
-

.pre-commit-config.yaml

@@ -0,0 +1,27 @@
+default_install_hook_types:
+  - pre-commit
+  - pre-push
+
+repos:
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.17.1
+    hooks:
+      - id: ruff-check
+      - id: ruff-format
+
+  - repo: local
+    hooks:
+      - id: pyright
+        name: pyright
+        entry: pyright
+        language: system
+        types: [python]
+        pass_filenames: false
+        stages: [pre-push]
+      - id: pytest
+        name: pytest
+        entry: python -m pytest -q --doctest-modules fcaz tests
+        language: system
+        types: [python]
+        pass_filenames: false
+        stages: [pre-push]

docs/api/index.rst

@@ -5,3 +5,4 @@ API reference
    :maxdepth: 1
 
    stats
+   typing

docs/api/typing.rst

@@ -0,0 +1,13 @@
+fcaz.typing
+===========
+
+.. automodule:: fcaz.typing
+
+.. autosummary::
+   :toctree: generated
+
+   ArrayLikeFloat
+   FloatOrArray
+   SupportsPdfSf
+   SupportsLogSf
+   FrozenDistribution

docs/conf.py

@@ -1,7 +1,10 @@
 import os
 import sys
 
-sys.path.insert(0, os.path.abspath('..'))
+sys.path.insert(
+    0,
+    os.path.abspath('..'),
+)
 
 from fcaz.constants import BUILD_VERSION
 

fcaz/__init__.py

@@ -0,0 +1,7 @@
+"""Property and casualty actuarial modeling."""
+
+from fcaz import stats
+
+__all__ = [
+    'stats',
+]

fcaz/constants.py

@@ -1,3 +1,5 @@
-# The build version is referenced by the setup file and documentation.
+"""Package-wide constants."""
+
+# The build version is referenced by pyproject.toml and the documentation.
 
 BUILD_VERSION = '0.0.0'