Fix #3695: add attributes to get_meter fn and InstrumentationScope

CHANGELOG.md

@@ -34,6 +34,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#3965](https://github.com/open-telemetry/opentelemetry-python/pull/3965))
 - Validate links at span creation
   ([#3991](https://github.com/open-telemetry/opentelemetry-python/pull/3991))
+- Fix to add attributes field in get_meter and instrumentationScope
+  ([#3695](https://github.com/open-telemetry/opentelemetry-python/issues/3695))
 
 ## Version 1.25.0/0.46b0 (2024-05-30)
 
@@ -1601,6 +1603,4 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#3778](https://github.com/open-telemetry/opentelemetry-python/pull/3778))
 - Fix license field in pyproject.toml files
   ([#3803](https://github.com/open-telemetry/opentelemetry-python/pull/3803))
-- Fix to add attributes field in get_meter and instrumentationScope
-  ([#3695](https://github.com/open-telemetry/opentelemetry-python/issues/3695))
 

opentelemetry-sdk/tests/metrics/test_metrics.py

@@ -205,6 +205,41 @@ def test_get_meter_duplicate(self):
         self.assertIs(meter1, meter2)
         self.assertIsNot(meter1, meter3)
 
+    def test_get_meter_attributes_duplicate(self):
+        """
+        Subsequent calls to `MeterProvider.get_meter` with the same arguments
+        should return the same `Meter` instance.
+        """
+        mp = MeterProvider()
+        meter1 = mp.get_meter(
+            "name",
+            version="version",
+            schema_url="schema_url",
+            attributes={"key": "value", "key2": 5, "key3": "value3"},
+        )
+        meter2 = mp.get_meter(
+            "name",
+            version="version",
+            schema_url="schema_url",
+            attributes={"key": "value", "key2": 5, "key3": "value3"},
+        )
+        meter3 = mp.get_meter(
+            "name2",
+            version="version",
+            schema_url="schema_url",
+        )
+        meter4 = mp.get_meter(
+            "name",
+            version="version",
+            schema_url="schema_url",
+            attributes={"key": "value", "key2": 5, "key3": "value4"},
+        )
+        self.assertIs(meter1, meter2)
+        self.assertIsNot(meter1, meter3)
+        self.assertTrue(
+            meter3._instrumentation_scope > meter4._instrumentation_scope
+        )
+
     def test_shutdown(self):
 
         mock_metric_reader_0 = MagicMock(