Swap out mypy for ty in code

Author: paddyroddy

.pre-commit-config.yaml

@@ -23,14 +23,14 @@ repos:
     rev: v0.24.4
     hooks:
       - id: toml-sort-fix
-  - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.20.2
+  - repo: https://github.com/astral-sh/ty-pre-commit
+    rev: v0.0.49
     hooks:
-      - id: mypy
+      - id: ty
         args:
-          - --config-file=pyproject.toml
-        additional_dependencies:
-          - pytest
+          - --group=typechecking
+          - --isolated
+          - --no-default-groups
   - repo: https://github.com/rbubley/mirrors-prettier
     rev: v3.8.3
     hooks:

pyproject.toml

@@ -1,3 +1,9 @@
+[dependency-groups]
+typechecking = [
+    "pytest",
+    "pytest-venv",
+]
+
 [tool.pytest.ini_options]
 addopts = [
     "--color=yes",

tests/data/test_package_generation/.pre-commit-config.yaml

@@ -18,10 +18,14 @@ repos:
     rev: v0.24.4
     hooks:
       - id: toml-sort-fix
-  - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.20.2
+  - repo: https://github.com/astral-sh/ty-pre-commit
+    rev: v0.0.49
     hooks:
-      - id: mypy
+      - id: ty
+        args:
+          - --group=typechecking
+          - --isolated
+          - --no-default-groups
   - repo: https://github.com/rbubley/mirrors-prettier
     rev: v3.8.3
     hooks:

tests/data/test_package_generation/pyproject.toml

@@ -8,11 +8,11 @@ requires = [
 [dependency-groups]
 dev = [
     "build",
-    "mypy",
     "pre-commit",
     "ruff",
     "tox",
     "twine",
+    "ty",
 ]
 docs = [
     "mkdocs-include-markdown-plugin",
@@ -25,6 +25,9 @@ test = [
     "pytest",
     "pytest-cov",
 ]
+typechecking = [
+    "pytest",
+]
 
 [project]
 authors = [
@@ -67,9 +70,6 @@ paths.source = [
     ".tox*/*/lib/python*/site-packages",
 ]
 
-[tool.mypy]
-explicit_package_bases = true
-
 [tool.pytest.ini_options]
 addopts = [
     "--color=yes",
@@ -148,3 +148,7 @@ gh.python."3.11" = ["py311"]
 gh.python."3.12" = ["py312"]
 gh.python."3.13" = ["py313"]
 gh.python."3.14" = ["py314"]
+
+[tool.ty]
+analysis.respect-type-ignore-comments = false
+terminal.error-on-warning = true

tests/data/test_package_generation/src/cookiecutter_test/__init__.py

@@ -1,6 +1,6 @@
 """cookiecutter_test package."""
 
-from ._version import __version__  # noqa: F401
+from ._version import __version__  # noqa: F401  # ty: ignore[unresolved-import]
 
 
 def example_function(argument: str, keyword_argument: str = "default") -> str:

{{cookiecutter.project_slug}}/.pre-commit-config.yaml

@@ -18,10 +18,14 @@ repos:
     rev: v0.24.4
     hooks:
       - id: toml-sort-fix
-  - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.20.2
+  - repo: https://github.com/astral-sh/ty-pre-commit
+    rev: v0.0.49
     hooks:
-      - id: mypy
+      - id: ty
+        args:
+          - --group=typechecking
+          - --isolated
+          - --no-default-groups
   - repo: https://github.com/rbubley/mirrors-prettier
     rev: v3.8.3
     hooks:

{{cookiecutter.project_slug}}/pyproject.toml

@@ -8,11 +8,11 @@ requires = [
 [dependency-groups]
 dev = [
     "build",
-    "mypy",
     "pre-commit",
     "ruff",
     "tox",
     "twine",
+    "ty",
 ]
 docs = [
     "mkdocs-include-markdown-plugin",
@@ -25,6 +25,9 @@ test = [
     "pytest",
     "pytest-cov",
 ]
+typechecking = [
+    "pytest",
+]
 
 [project]
 authors = [
@@ -69,9 +72,6 @@ paths.source = [
     ".tox*/*/lib/python*/site-packages",
 ]
 
-[tool.mypy]
-explicit_package_bases = true
-
 [tool.pytest.ini_options]
 addopts = [
     "--color=yes",
@@ -154,3 +154,7 @@ env.docs = {commands = [
 ) %}
 gh.python."3.{{python_version}}" = ["py3{{python_version}}"]
 {%- endfor %}
+
+[tool.ty]
+analysis.respect-type-ignore-comments = false
+terminal.error-on-warning = true

{{cookiecutter.project_slug}}/src/{{cookiecutter.package_name}}/__init__.py

@@ -1,6 +1,6 @@
 """{{cookiecutter.package_name}} package."""
 
-from ._version import __version__  # noqa: F401
+from ._version import __version__  # noqa: F401 # ty: ignore[unresolved-import]
 
 
 def example_function(argument: str, keyword_argument: str = "default") -> str: