fix: support newer OpenTelemetry SDK

tracing/ops_tracing/_backend.py

@@ -74,13 +74,23 @@ def _create_provider(resource: Resource, charm_dir: pathlib.Path) -> TracerProvi
 
 def get_exporter() -> BufferingSpanExporter | None:
     """Get our export from OpenTelemetry SDK."""
+    exporter = None
+
+    # opentelemetry-sdk < 1.34.0
     try:
         exporter = get_tracer_provider()._active_span_processor.span_exporter  # type: ignore
     except AttributeError:
-        # The global tracer provider was not configured by us and has a wrong processor.
-        return None
+        pass
+
+    # opentelemetry-sdk >= 1.34.0
+    try:
+        exporter = get_tracer_provider()._active_span_processor._batch_processor._exporter  # type: ignore
+    except AttributeError:
+        pass
+
     if not exporter or not isinstance(exporter, BufferingSpanExporter):
         return None
+
     return exporter
 
 

tracing/pyproject.toml

@@ -104,6 +104,8 @@ ignore = [
     "D213",
     # we don't add a blank line after Args: in a function docstring
     "D413",
+    # Use contextlib.suppress() instead of try/except: pass
+    "SIM105",
 ]
 
 [tool.ruff.lint.per-file-ignores]