Support PEP 561 to opentelemetry-instrumentation-system-metrics (#3132)

Author: Kludex

CHANGELOG.md

@@ -17,6 +17,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#3100](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3100))
 - Add support to database stability opt-in in `_semconv` utilities and add tests
   ([#3111](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3111))
+- `opentelemetry-instrumentation-system-metrics` Add `py.typed` file to enable PEP 561
+  ([#3132](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3132))
 - `opentelemetry-opentelemetry-sqlite3` Add `py.typed` file to enable PEP 561
   ([#3133](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3133))
 - `opentelemetry-instrumentation-falcon` add support version to v4

instrumentation/opentelemetry-instrumentation-system-metrics/src/opentelemetry/instrumentation/system_metrics/__init__.py

@@ -76,18 +76,18 @@
 ---
 """
 
+from __future__ import annotations
+
 import gc
 import logging
 import os
 import sys
 import threading
 from platform import python_implementation
-from typing import Collection, Dict, Iterable, List, Optional
+from typing import Any, Collection, Iterable
 
 import psutil
 
-# FIXME Remove this pylint disabling line when Github issue is cleared
-# pylint: disable=no-name-in-module
 from opentelemetry.instrumentation.instrumentor import BaseInstrumentor
 from opentelemetry.instrumentation.system_metrics.package import _instruments
 from opentelemetry.instrumentation.system_metrics.version import __version__
@@ -96,7 +96,7 @@
 _logger = logging.getLogger(__name__)
 
 
-_DEFAULT_CONFIG = {
+_DEFAULT_CONFIG: dict[str, list[str] | None] = {
     "system.cpu.time": ["idle", "user", "system", "irq"],
     "system.cpu.utilization": ["idle", "user", "system", "irq"],
     "system.memory.usage": ["used", "free", "cached"],
@@ -129,8 +129,8 @@
 class SystemMetricsInstrumentor(BaseInstrumentor):
     def __init__(
         self,
-        labels: Optional[Dict[str, str]] = None,
-        config: Optional[Dict[str, List[str]]] = None,
+        labels: dict[str, str] | None = None,
+        config: dict[str, list[str] | None] | None = None,
     ):
         super().__init__()
         if config is None:
@@ -176,7 +176,7 @@ def __init__(
     def instrumentation_dependencies(self) -> Collection[str]:
         return _instruments
 
-    def _instrument(self, **kwargs):
+    def _instrument(self, **kwargs: Any):
         # pylint: disable=too-many-branches
         meter_provider = kwargs.get("meter_provider")
         self._meter = get_meter(
@@ -408,7 +408,7 @@ def _instrument(self, **kwargs):
                 description="Number of file descriptors in use by the process.",
             )
 
-    def _uninstrument(self, **__):
+    def _uninstrument(self, **kwargs: Any):
         pass
 
     def _get_open_file_descriptors(