make span attribute available to urllib (#1014)

Author: DiptoChakrabarty

CHANGELOG.md

@@ -9,6 +9,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+- `opentelemetry-instrumentation-urllib` make span attributes available to sampler
+  ([1014](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1014))
 - `opentelemetry-instrumentation-flask` Fix non-recording span bug
   ([#999])(https://github.com/open-telemetry/opentelemetry-python-contrib/pull/999)
 - `opentelemetry-instrumentation-tornado` Fix non-recording span bug

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

@@ -184,14 +184,11 @@ def _instrumented_open_call(
         }
 
         with tracer.start_as_current_span(
-            span_name, kind=SpanKind.CLIENT
+            span_name, kind=SpanKind.CLIENT, attributes=labels
         ) as span:
             exception = None
             if callable(request_hook):
                 request_hook(span, request)
-            if span.is_recording():
-                span.set_attribute(SpanAttributes.HTTP_METHOD, method)
-                span.set_attribute(SpanAttributes.HTTP_URL, url)
 
             headers = get_or_create_headers()
             inject(headers)