chore: Migrate to ty type checker

Author: vdusek

.gitignore

@@ -1,5 +1,5 @@
 __pycache__
-.mypy_cache
+.ty_cache
 .pytest_cache
 .ruff_cache
 

CONTRIBUTING.md

@@ -46,7 +46,7 @@ make format
 
 ### Type checking
 
-Type checking is handled by [mypy](https://mypy.readthedocs.io/), verifying code against type annotations. Configuration settings can be found in `pyproject.toml`.
+Type checking is handled by [ty](https://docs.astral.sh/ty/), verifying code against type annotations. Configuration settings can be found in `pyproject.toml`.
 
 To run type checking:
 

Makefile

@@ -2,7 +2,7 @@
 	type-check check-code format
 
 clean:
-	rm -rf .mypy_cache .pytest_cache .ruff_cache build dist htmlcov .coverage
+	rm -rf .ty_cache .pytest_cache .ruff_cache build dist htmlcov .coverage
 
 install-dev:
 	uv sync --all-extras
@@ -25,7 +25,7 @@ unit-tests-cov:
 	uv run pytest --numprocesses=auto --verbose --cov=src/apify_shared --cov-report=html tests/unit
 
 type-check:
-	uv run mypy
+	uv run ty check
 
 # The check-code target runs a series of checks equivalent to those performed by pre-commit hooks
 # and the run_checks.yaml GitHub Actions workflow.

pyproject.toml

@@ -44,7 +44,6 @@ dependencies = []
 [dependency-groups]
 dev = [
     "dycw-pytest-only~=2.1.0",
-    "mypy~=1.17.0",
     "pre-commit~=4.3.0",
     "pytest-asyncio~=1.1.0",
     "pytest-cov~=6.2.0",
@@ -53,7 +52,7 @@ dev = [
     "pytest~=8.4.0",
     "ruff~=0.12.0",
     "setuptools", # setuptools are used by pytest, but not explicitly required
-
+    "ty~=0.0.0",
 ]
 
 [tool.ruff]
@@ -100,16 +99,8 @@ asyncio_default_fixture_loop_scope = "function"
 asyncio_mode = "auto"
 timeout = 300
 
-[tool.mypy]
-python_version = "3.10"
-files = ["src", "tests"]
-check_untyped_defs = true
-disallow_incomplete_defs = true
-disallow_untyped_calls = true
-disallow_untyped_decorators = true
-disallow_untyped_defs = true
-no_implicit_optional = true
-warn_redundant_casts = true
-warn_return_any = true
-warn_unreachable = true
-warn_unused_ignores = true
+[tool.ty.environment]
+python-version = "3.10"
+
+[tool.ty.src]
+include = ["src", "tests", "scripts", "docs", "website"]