Remove option to choose mypy

Author: jpvelez

copier.yml

@@ -24,12 +24,6 @@ project_description:
   type: str
   default: "This is a repository for modern data science projects."
 
-type_checker:
-  type: str
-  choices: ["mypy", "ty"]
-  default: "ty"
-  when: "{{ python }}"
-
 project_features:
   type: str
   multiselect: true

template/.devcontainer/devcontainer.json.jinja

@@ -40,8 +40,8 @@
         "tamasfe.even-better-toml",
         "nefrob.vscode-just-syntax"{% if python  %},
         "ms-python.python",
-        "charliermarsh.ruff"{% if type_checker == 'ty' %},
-        "astral-sh.ty"{% endif %}{% endif %}{% if r_data_science  %},
+        "charliermarsh.ruff",
+        "astral-sh.ty"{% endif %}{% if r_data_science  %},
         "REditorSupport.r",
         "RDebugger.r-debugger",
         "Posit.air-vscode",

template/Justfile.jinja

@@ -18,8 +18,8 @@ check:
     uv lock --locked
     echo "🚀 Linting code: Running pre-commit"
     uv run pre-commit run -a
-    echo "🚀 Static type checking: Running {% if type_checker == "mypy" %}mypy{% else %}ty{% endif %}"
-    uv run {% if type_checker == "mypy" %}mypy{% else %}ty check{% endif %}
+    echo "🚀 Static type checking: Running ty"
+    uv run ty check
     echo "🚀 Checking for obsolete dependencies: Running deptry"
     uv run deptry .
 

template/{% if python %}.pre-commit-config.yaml{% endif %}.jinja

@@ -6,12 +6,7 @@ repos:
         args: [--fix]
       - id: ruff-format
 
-{% if type_checker == 'mypy' %}  - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.8.0
-    hooks:
-      - id: mypy
-        additional_dependencies: [types-all]
-{% endif %}  - repo: https://github.com/pre-commit/pre-commit-hooks
+  - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.4.0
     hooks:
       - id: trailing-whitespace

template/{% if python %}pyproject.toml{% endif %}.jinja

@@ -38,9 +38,7 @@ dev = [
     "pytest-cov>=4.0.0",
     "pre-commit>=3.5.0",
     "ruff>=0.11.5",
-{% if type_checker == 'mypy' %}    "mypy>=1.8.0",
-{% endif %}{% if type_checker == 'ty' %}    "ty>=0.0.1a16",
-{% endif %}    "deptry>=0.20.0",
+    "ty>=0.0.1a21",    "deptry>=0.20.0",
 {% if python_package  %}    "mkdocs>=1.6.0",
     "mkdocs-material>=9.5.0",
     "mkdocstrings[python]>=0.26.1",
@@ -71,19 +69,6 @@ ignore = ["E501"]
 [tool.ruff.lint.per-file-ignores]
 "tests/*" = ["S101"]
 
-{% if type_checker == 'ty' %}[tool.ty.environment]
+[tool.ty.environment]
 python = "./.venv"
 python-version = "3.13"
-{% endif %}{% if type_checker == 'mypy' %}
-[tool.mypy]
-files = [
-    "{{ project_slug }}"
-]
-disallow_untyped_defs = true
-disallow_any_unimported = true
-no_implicit_optional = true
-check_untyped_defs = true
-warn_return_any = true
-warn_unused_ignores = true
-show_error_codes = true
-{% endif %}

template/{% if use_github %}.github{% endif %}/workflows/{% if use_github and python %}main.yml{% endif %}.jinja

@@ -17,14 +17,13 @@ jobs:
       - name: Set up the environment
         uses: ./.github/actions/setup-python-env
 
-      - name: Install prek for pre-commit hooks
+      - name: Run ruff and other pre-commit hooks
         uses: j178/prek-action@v1
 
-      - name: Run checks
+      - name: Run ty and deptry
         run: |
           uv lock --locked
-          prek run -a
-          uv run {% if type_checker == "mypy" %}mypy{% else %}ty check{% endif %}
+          uv run ty check
           uv run deptry .
 
   tests-and-type-check:
@@ -49,7 +48,7 @@ jobs:
         run: uv run python -m pytest tests
 
       - name: Check typing
-        run: uv run {% if type_checker == "mypy" %}mypy{% else %}ty check{% endif %}
+        run: uv run ty check
 
 {% if python_package %}
   check-docs: