Migration from mypy to ty

.devcontainer/devcontainer.json

@@ -52,7 +52,7 @@
           "**/dist/**": true,
           "**/pyrit/auxiliary_attacks/gcg/attack/**": true,
           "**/doc/**": true,
-          "**/.mypy_cache/**": true,
+          "**/.ty_cache/**": true,
           "**/frontend/node_modules/**": true,
           "**/frontend/dist/**": true,
           "**/dbdata/**": true

.devcontainer/docker-compose.yml

@@ -14,7 +14,7 @@ services:
       - pip-cache:/home/vscode/.cache/pip:cached
       - uv-cache:/home/vscode/.cache/uv:cached
       - precommit-cache:/home/vscode/.cache/pre-commit:cached
-      - mypy-cache:/workspace/.mypy_cache:cached
+      - ty-cache:/workspace/.ty_cache:cached
       - pylance-cache:/home/vscode/.cache/pylance:cached
       - node-modules:/workspace/frontend/node_modules:cached
       - ~/.pyrit:/home/vscode/.pyrit:cached
@@ -28,6 +28,6 @@ volumes:
   pip-cache:
   uv-cache:
   precommit-cache:
-  mypy-cache:
+  ty-cache:
   pylance-cache:
   node-modules:

.dockerignore

@@ -14,7 +14,7 @@ build/
 **/*.py[cod]
 **/*$py.class
 **/.pytest_cache/
-**/.mypy_cache/
+**/.ty_cache/
 
 # Environment files with secrets
 .env

.pre-commit-config.yaml

@@ -50,17 +50,6 @@ repos:
       additional_dependencies: ['requests']
       exclude: (release_process.md|git.md|^doc/deployment/|tests|pyrit/prompt_converter/morse_converter.py|.github|pyrit/prompt_converter/emoji_converter.py|pyrit/score/markdown_injection.py|^pyrit/datasets/|^pyrit/auxiliary_attacks/gcg/)
 
-  - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.15.0
-    hooks:
-      - id: mypy
-        name: mypy (strict)
-        files: &strict_modules ^pyrit/
-        args: [--install-types, --non-interactive, --ignore-missing-imports, --sqlite-cache, --cache-dir=.mypy_cache, --strict]
-        entry: mypy
-        language: system
-        types: [ python ]
-
   - repo: local
     hooks:
       - id: validate-jupyter-book

Makefile

@@ -1,4 +1,4 @@
-.PHONY: all pre-commit mypy test test-cov-html test-cov-xml
+.PHONY: all pre-commit ty test test-cov-html test-cov-xml
 
 CMD:=uv run -m
 PYMODULE:=pyrit
@@ -13,8 +13,8 @@ pre-commit:
 	$(CMD) isort --multi-line 3 --recursive $(PYMODULE) $(TESTS)
 	pre-commit run --all-files
 
-mypy:
-	$(CMD) mypy $(PYMODULE) $(UNIT_TESTS)
+ty:
+	$(CMD) ty check $(PYMODULE) $(UNIT_TESTS)
 
 docs-build:
 	uv run jb build -W -v ./doc

doc/contributing/1a_install_uv.md

@@ -185,7 +185,7 @@ uv run ruff check --fix .
 ### Running Type Checker
 
 ```bash
-uv run mypy pyrit/
+uv run ty check pyrit/
 ```
 
 ### Pre-commit Hooks

pyproject.toml

@@ -72,7 +72,7 @@ dev = [
     "jupyter>=1.1.1",
     "jupyter-book==1.0.4",
     "jupytext>=1.17.1",
-    "mypy>=1.16.0",
+    "ty>=0.0.12",
     "mock-alchemy>=0.2.6",
     "pre-commit>=4.2.0",
     "pytest>=8.3.5",
@@ -165,13 +165,14 @@ pythonpath = ["."]
 asyncio_default_fixture_loop_scope = "function"
 asyncio_mode = "auto"
 
-[tool.mypy]
-plugins = []
-ignore_missing_imports = true
-strict = false
-follow_imports = "silent"
-strict_optional = false
-disable_error_code = ["empty-body"]
+[tool.ty]
+[tool.ty.rules]
+unresolved-import = "ignore"
+possibly-missing-attribute = "ignore"
+unused-ignore-comment = "ignore"
+[tool.ty.analysis]
+respect-type-ignore-comments = true
+[tool.ty.src]
 exclude = ["doc/code/"]
 
 [build-system]