tests: type check

tests/test_find_names.py

@@ -23,14 +23,17 @@ def check_find_names(
     if not confirm:
         return
 
+    exec_locals: object
     exec_locals = {}
     actually_undefined = undefined - set(dir(__import__("builtins")))
     if actually_undefined:
         # If something is actually undefined, we should raise a NameError when we execute
         # (if we hit another exception first, we fix the test!)
         with pytest.raises(NameError) as e:
             exec(code, exec_locals)
-        undefined_var = re.search(r"(name|variable) '(\w+)'", e.value.args[0]).group(2)
+        m = re.search(r"(name|variable) '(\w+)'", e.value.args[0])
+        assert m is not None
+        undefined_var = m.group(2)
         assert undefined_var in actually_undefined
     else:
         try:

tests/test_pyp.py

@@ -24,7 +24,7 @@ def delete_config_env_var(monkeypatch):
     monkeypatch.delenv("PYP_CONFIG_PATH", raising=False)
 
 
-def run_cmd(cmd: str, input: Optional[str] = None, check: bool = True) -> str:
+def run_cmd(cmd: str, input: Union[str, bytes, None] = None, check: bool = True) -> str:
     if isinstance(input, str):
         input = input.encode("utf-8")
     proc = subprocess.run(

tox.ini

@@ -20,10 +20,13 @@ commands =
     isort --diff --check --quiet .
 
 [testenv:mypy]
-deps = mypy>=1.13
+deps =
+    mypy>=1.13
+    pytest
 commands =
     mypy --strict -m pyp --python-version 3.8
     mypy --strict -m pyp --python-version 3.13
+    mypy . --python-version 3.13
 
 [coverage:report]
 exclude_lines =