Support PEP 561 to opentelemetry-instrumentation-urllib (#3131)

* Support PEP 561 to `opentelemetry-instrumentation-urllib`

* add future

---------

Co-authored-by: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>

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-urllib` Add `py.typed` file to enable PEP 561
+  ([#3131](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3131))
 - `opentelemetry-opentelemetry-pymongo` Add `py.typed` file to enable PEP 561
   ([#3136](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3136))
 - `opentelemetry-opentelemetry-requests` Add `py.typed` file to enable PEP 561

instrumentation/opentelemetry-instrumentation-urllib/src/opentelemetry/instrumentation/urllib/__init__.py

@@ -43,17 +43,24 @@ The hooks can be configured as follows:
 
 .. code:: python
 
-    # `request_obj` is an instance of urllib.request.Request
-    def request_hook(span, request_obj):
+    from http.client import HTTPResponse
+    from urllib.request import Request
+
+    from opentelemetry.instrumentation.urllib import URLLibInstrumentor
+    from opentelemetry.trace import Span
+
+
+    def request_hook(span: Span, request: Request):
         pass
 
-    # `request_obj` is an instance of urllib.request.Request
-    # `response` is an instance of http.client.HTTPResponse
-    def response_hook(span, request_obj, response)
+
+    def response_hook(span: Span, request: Request, response: HTTPResponse):
         pass
 
-    URLLibInstrumentor.instrument(
-        request_hook=request_hook, response_hook=response_hook)
+
+    URLLibInstrumentor().instrument(
+        request_hook=request_hook,
+        response_hook=response_hook
     )
 
 Exclude lists
@@ -74,12 +81,14 @@ API
 ---
 """
 
+from __future__ import annotations
+
 import functools
 import types
 import typing
 from http import client
 from timeit import default_timer
-from typing import Collection, Dict
+from typing import Any, Collection
 from urllib.request import (  # pylint: disable=no-name-in-module,import-error
     OpenerDirector,
     Request,
@@ -107,7 +116,7 @@ from opentelemetry.instrumentation.utils import (
     is_http_instrumentation_enabled,
     suppress_http_instrumentation,
 )
-from opentelemetry.metrics import Histogram, get_meter
+from opentelemetry.metrics import Histogram, Meter, get_meter
 from opentelemetry.propagate import inject
 from opentelemetry.semconv._incubating.metrics.http_metrics import (
     HTTP_CLIENT_REQUEST_BODY_SIZE,
@@ -121,7 +130,7 @@ from opentelemetry.semconv.metrics.http_metrics import (
     HTTP_CLIENT_REQUEST_DURATION,
 )
 from opentelemetry.semconv.trace import SpanAttributes
-from opentelemetry.trace import Span, SpanKind, get_tracer
+from opentelemetry.trace import Span, SpanKind, Tracer, get_tracer
 from opentelemetry.util.http import (
     ExcludeList,
     get_excluded_urls,
@@ -129,6 +138,7 @@ from opentelemetry.util.http import (
     remove_url_credentials,
     sanitize_method,
 )
+from opentelemetry.util.types import Attributes
 
 _excluded_urls_from_env = get_excluded_urls("URLLIB")
 
@@ -146,7 +156,7 @@ class URLLibInstrumentor(BaseInstrumentor):
     def instrumentation_dependencies(self) -> Collection[str]:
         return _instruments
 
-    def _instrument(self, **kwargs):
+    def _instrument(self, **kwargs: Any):
         """Instruments urllib module
 
         Args:
@@ -194,7 +204,7 @@ class URLLibInstrumentor(BaseInstrumentor):
             sem_conv_opt_in_mode=sem_conv_opt_in_mode,
         )
 
-    def _uninstrument(self, **kwargs):
+    def _uninstrument(self, **kwargs: Any):
         _uninstrument()
 
     def uninstrument_opener(self, opener: OpenerDirector):  # pylint: disable=no-self-use
@@ -204,11 +214,11 @@ class URLLibInstrumentor(BaseInstrumentor):
 
 # pylint: disable=too-many-statements
 def _instrument(
-    tracer,
-    histograms: Dict[str, Histogram],
+    tracer: Tracer,
+    histograms: dict[str, Histogram],
     request_hook: _RequestHookT = None,
     response_hook: _ResponseHookT = None,
-    excluded_urls: ExcludeList = None,
+    excluded_urls: ExcludeList | None = None,
     sem_conv_opt_in_mode: _StabilityMode = _StabilityMode.DEFAULT,
 ):
     """Enables tracing of all requests calls that go through
@@ -345,7 +355,7 @@ def _uninstrument():
     _uninstrument_from(OpenerDirector)
 
 
-def _uninstrument_from(instr_root, restore_as_bound_func=False):
+def _uninstrument_from(instr_root, restore_as_bound_func: bool = False):
     instr_func_name = "open"
     instr_func = getattr(instr_root, instr_func_name)
     if not getattr(
@@ -371,7 +381,7 @@ def _get_span_name(method: str) -> str:
 def _set_status_code_attribute(
     span: Span,
     status_code: int,
-    metric_attributes: dict = None,
+    metric_attributes: dict[str, Any] | None = None,
     sem_conv_opt_in_mode: _StabilityMode = _StabilityMode.DEFAULT,
 ) -> None:
     status_code_str = str(status_code)
@@ -394,8 +404,8 @@ def _set_status_code_attribute(
 
 
 def _create_client_histograms(
-    meter, sem_conv_opt_in_mode=_StabilityMode.DEFAULT
-) -> Dict[str, Histogram]:
+    meter: Meter, sem_conv_opt_in_mode: _StabilityMode = _StabilityMode.DEFAULT
+) -> dict[str, Histogram]:
     histograms = {}
     if _report_old(sem_conv_opt_in_mode):
         histograms[MetricInstruments.HTTP_CLIENT_DURATION] = (
@@ -436,9 +446,9 @@ def _create_client_histograms(
 
 
 def _record_histograms(
-    histograms: Dict[str, Histogram],
-    metric_attributes_old: dict,
-    metric_attributes_new: dict,
+    histograms: dict[str, Histogram],
+    metric_attributes_old: Attributes,
+    metric_attributes_new: Attributes,
     request_size: int,
     response_size: int,
     duration_s: float,

instrumentation/opentelemetry-instrumentation-urllib/src/opentelemetry/instrumentation/urllib/package.py

@@ -12,8 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from __future__ import annotations
 
-_instruments = tuple()
+_instruments: tuple[str, ...] = tuple()
 
 _supports_metrics = True
 

instrumentation/opentelemetry-instrumentation-urllib/src/opentelemetry/instrumentation/urllib/version.py

@@ -13,5 +13,3 @@
 # limitations under the License.
 
 __version__ = "0.51b0.dev"
-
-_instruments = tuple()