fix

Author: Miskler

msra_codegen/config.toml

@@ -119,6 +119,9 @@ line_length = 200
 select = ["E", "F", "I", "UP", "B", "SIM"]
 ignore = ["RUF001", "RUF002", "RUF003"]
 
+[mypy]
+ignore_missing_imports = true
+
 [[validation.checks]]
 name = "ruff"
 argv = ["{python_executable}", "-m", "ruff", "check"]

msra_codegen/package_metadata.py

@@ -36,6 +36,7 @@ def render_pyproject(project: dict[str, Any], package_name: str) -> str:
             "dependencies_block": render_toml_string_list("dependencies", runtime_dependencies),
             "package_name": package_name,
             "autotest_start_class": f"{package_name}.{client_class_name}",
+            "mypy_block": render_mypy_block(),
             "ruff_block": render_ruff_block(),
         },
     )
@@ -91,6 +92,44 @@ def render_ruff_block() -> str:
     )
 
 
+def render_mypy_block() -> str:
+    mypy_config = config_section("mypy")
+    if not isinstance(mypy_config, dict):
+        raise RuntimeError("mypy must be a table.")
+
+    items: list[str] = []
+    for key, value in mypy_config.items():
+        if isinstance(value, bool):
+            rendered_value = "true" if value else "false"
+        elif isinstance(value, (int, float)) and not isinstance(value, bool):
+            rendered_value = str(value)
+        elif isinstance(value, str):
+            rendered_value = json.dumps(value)
+        elif isinstance(value, list):
+            rendered_items: list[str] = []
+            for item in value:
+                if isinstance(item, bool):
+                    rendered_items.append("true" if item else "false")
+                elif isinstance(item, (int, float)) and not isinstance(item, bool):
+                    rendered_items.append(str(item))
+                elif isinstance(item, str):
+                    rendered_items.append(json.dumps(item))
+                else:
+                    raise RuntimeError(f"mypy.{key} contains an unsupported value type.")
+            rendered_value = "["
+            if rendered_items:
+                rendered_value += ", ".join(rendered_items)
+            rendered_value += "]"
+        else:
+            raise RuntimeError(f"mypy.{key} contains an unsupported value type.")
+        items.append(f"{key} = {rendered_value}")
+
+    if not items:
+        raise RuntimeError("mypy must not be empty.")
+
+    return "\n".join(["[tool.mypy]", *items])
+
+
 @lru_cache(maxsize=1)
 def latest_supported_python_minor() -> int:
     families = load_python_release_families()

msra_codegen/templates/pyproject.toml.tpl

@@ -13,6 +13,7 @@ license = "{{ license }}"
 {{ keywords_block }}
 {{ classifiers_block }}
 {{ dependencies_block }}
+{{ mypy_block }}
 {{ ruff_block }}
 
 [tool.setuptools]

tests/codegen.test.js

@@ -716,6 +716,8 @@ test("python codegen generates both bundled msra documents without failing", ()
       assert.match(pyprojectText, /\[tool\.ruff\.lint\]/);
       assert.match(pyprojectText, /select = \[/);
       assert.match(pyprojectText, /ignore = \[/);
+      assert.match(pyprojectText, /\[tool\.mypy\]/);
+      assert.match(pyprojectText, /ignore_missing_imports = true/);
       assert.match(pyprojectText, /Programming Language :: Python :: 3/);
       assert.match(pyprojectText, /Programming Language :: Python :: 3\.10/);
       assert.match(pyprojectText, /Programming Language :: Python :: 3\.13/);