mypy: install pytest alongside mypy to get its types

3 files changed, 6 insertions, 5 deletions

diff --git a/tests/mixins.py b/tests/mixins.py
index d207f779..c8f79d67 100644
--- a/tests/mixins.py
+++ b/tests/mixins.py
@@ -14,7 +14,7 @@ import os
 import os.path
 import sys
 
-from typing import Any, Callable, Iterable, Iterator, Optional, Tuple
+from typing import Any, Callable, Iterable, Iterator, Optional, Tuple, cast
 
 import pytest
 
@@ -138,12 +138,12 @@ class StdStreamCapturingMixin:
 
     def stdouterr(self) -> Tuple[str, str]:
         """Returns (out, err), two strings for stdout and stderr."""
-        return self.capsys.readouterr()             # type: ignore[no-any-return]
+        return cast(Tuple[str, str], self.capsys.readouterr())
 
     def stdout(self) -> str:
         """Returns a string, the captured stdout."""
-        return self.capsys.readouterr().out         # type: ignore[no-any-return]
+        return self.capsys.readouterr().out
 
     def stderr(self) -> str:
         """Returns a string, the captured stderr."""
-        return self.capsys.readouterr().err         # type: ignore[no-any-return]
+        return self.capsys.readouterr().err
diff --git a/tests/test_oddball.py b/tests/test_oddball.py
index a44beae4..23e3ce9d 100644
--- a/tests/test_oddball.py
+++ b/tests/test_oddball.py
@@ -209,6 +209,7 @@ class MemoryFumblingTest(CoverageTest):
         pytest.skip("This is too expensive for now (30s)")
         # Start and stop coverage thousands of times to flush out bad
         # reference counting, maybe.
+        _ = "this is just here to put a type comment on"    # type: ignore[unreachable]
         self.make_file("the_code.py", """\
             import random
             def f():
diff --git a/tests/test_venv.py b/tests/test_venv.py
index eb4ed5c0..de7ebbe1 100644
--- a/tests/test_venv.py
+++ b/tests/test_venv.py
@@ -48,7 +48,7 @@ def venv_world_fixture(tmp_path_factory: pytest.TempPathFactory) -> Path:
     Returns the directory containing the "venv" virtualenv.
     """
 
-    venv_world = cast(Path, tmp_path_factory.mktemp("venv_world"))
+    venv_world = tmp_path_factory.mktemp("venv_world")
     with change_dir(venv_world):
         # Create a virtualenv.
         run_command("python -m venv venv")