Some minor typing tweaks

Author: bluetech

src/_pytest/logging.py

@@ -11,15 +11,18 @@
 from io import StringIO
 from logging import LogRecord
 from pathlib import Path
+from types import TracebackType
 from typing import AbstractSet
 from typing import Dict
 from typing import final
 from typing import Generator
+from typing import Generic
 from typing import List
 from typing import Literal
 from typing import Mapping
 from typing import Optional
 from typing import Tuple
+from typing import Type
 from typing import TYPE_CHECKING
 from typing import TypeVar
 from typing import Union
@@ -62,7 +65,7 @@ class DatetimeFormatter(logging.Formatter):
     :func:`time.strftime` in case of microseconds in format string.
     """
 
-    def formatTime(self, record: LogRecord, datefmt=None) -> str:
+    def formatTime(self, record: LogRecord, datefmt: Optional[str] = None) -> str:
         if datefmt and "%f" in datefmt:
             ct = self.converter(record.created)
             tz = timezone(timedelta(seconds=ct.tm_gmtoff), ct.tm_zone)
@@ -331,7 +334,7 @@ def add_option_ini(option, dest, default=None, type=None, **kwargs):
 
 
 # Not using @contextmanager for performance reasons.
-class catching_logs:
+class catching_logs(Generic[_HandlerType]):
     """Context manager that prepares the whole logging machinery properly."""
 
     __slots__ = ("handler", "level", "orig_level")
@@ -340,7 +343,7 @@ def __init__(self, handler: _HandlerType, level: Optional[int] = None) -> None:
         self.handler = handler
         self.level = level
 
-    def __enter__(self):
+    def __enter__(self) -> _HandlerType:
         root_logger = logging.getLogger()
         if self.level is not None:
             self.handler.setLevel(self.level)
@@ -350,7 +353,12 @@ def __enter__(self):
             root_logger.setLevel(min(self.orig_level, self.level))
         return self.handler
 
-    def __exit__(self, type, value, traceback):
+    def __exit__(
+        self,
+        exc_type: Optional[Type[BaseException]],
+        exc_val: Optional[BaseException],
+        exc_tb: Optional[TracebackType],
+    ) -> None:
         root_logger = logging.getLogger()
         if self.level is not None:
             root_logger.setLevel(self.orig_level)
@@ -421,7 +429,7 @@ def handler(self) -> LogCaptureHandler:
         return self._item.stash[caplog_handler_key]
 
     def get_records(
-        self, when: "Literal['setup', 'call', 'teardown']"
+        self, when: Literal["setup", "call", "teardown"]
     ) -> List[logging.LogRecord]:
         """Get the logging records for one of the possible test phases.
 
@@ -742,7 +750,7 @@ def set_log_path(self, fname: str) -> None:
         if old_stream:
             old_stream.close()
 
-    def _log_cli_enabled(self):
+    def _log_cli_enabled(self) -> bool:
         """Return whether live logging is enabled."""
         enabled = self._config.getoption(
             "--log-cli-level"

src/_pytest/runner.py

@@ -317,7 +317,7 @@ def result(self) -> TResult:
     @classmethod
     def from_call(
         cls,
-        func: "Callable[[], TResult]",
+        func: Callable[[], TResult],
         when: Literal["collect", "setup", "call", "teardown"],
         reraise: Optional[
             Union[Type[BaseException], Tuple[Type[BaseException], ...]]