diff --git a/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/logs/test_otlp_logs_exporter.py b/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/logs/test_otlp_logs_exporter.py
index f317103c305..80814569d11 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/logs/test_otlp_logs_exporter.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/logs/test_otlp_logs_exporter.py
@@ -25,9 +25,8 @@
 from opentelemetry.exporter.otlp.proto.grpc._log_exporter import (
     OTLPLogExporter,
 )
-from opentelemetry.exporter.otlp.proto.grpc.version import __version__
-
 from opentelemetry.exporter.otlp.proto.grpc.exporter import _translate_value
+from opentelemetry.exporter.otlp.proto.grpc.version import __version__
 from opentelemetry.proto.collector.logs.v1.logs_service_pb2 import (
     ExportLogsServiceRequest,
     ExportLogsServiceResponse,
@@ -253,7 +252,8 @@ def test_otlp_exporter_endpoint(self, mock_secure, mock_insecure):
 
     def test_otlp_headers_from_env(self):
         self.assertEqual(
-            self.exporter._headers, (("user-agent", "OTel OTLP Exporter Python/" + __version__),)
+            self.exporter._headers,
+            (("user-agent", "OTel OTLP Exporter Python/" + __version__),),
         )
 
     @patch("opentelemetry.exporter.otlp.proto.grpc.exporter._expo")
diff --git a/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_metrics_exporter.py b/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_metrics_exporter.py
index bca8725c7ea..6436661a985 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_metrics_exporter.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_metrics_exporter.py
@@ -26,6 +26,7 @@
 from opentelemetry.exporter.otlp.proto.grpc.metric_exporter import (
     OTLPMetricExporter,
 )
+from opentelemetry.exporter.otlp.proto.grpc.version import __version__
 from opentelemetry.proto.collector.metrics.v1.metrics_service_pb2 import (
     ExportMetricsServiceRequest,
     ExportMetricsServiceResponse,
@@ -78,9 +79,6 @@
 )
 from opentelemetry.test.metrictestutil import _generate_gauge, _generate_sum
 
-from opentelemetry.exporter.otlp.proto.grpc.version import __version__
-
-
 THIS_DIR = dirname(__file__)
 
 
@@ -416,14 +414,24 @@ def test_otlp_headers_from_env(self, mock_ssl_channel, mock_secure):
         exporter = OTLPMetricExporter()
         # pylint: disable=protected-access
         self.assertEqual(
-            exporter._headers, (("key1", "value1"), ("key2", "VALUE=2"),("user-agent", "OTel OTLP Exporter Python/" + __version__))
+            exporter._headers,
+            (
+                ("key1", "value1"),
+                ("key2", "VALUE=2"),
+                ("user-agent", "OTel OTLP Exporter Python/" + __version__),
+            ),
         )
         exporter = OTLPMetricExporter(
             headers=(("key3", "value3"), ("key4", "value4"))
         )
         # pylint: disable=protected-access
         self.assertEqual(
-            exporter._headers, (("key3", "value3"), ("key4", "value4"),("user-agent", "OTel OTLP Exporter Python/" + __version__))
+            exporter._headers,
+            (
+                ("key3", "value3"),
+                ("key4", "value4"),
+                ("user-agent", "OTel OTLP Exporter Python/" + __version__),
+            ),
         )
 
     @patch.dict(
diff --git a/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_trace_exporter.py b/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_trace_exporter.py
index 0956e51d8ca..c5bf7e67298 100644
--- a/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_trace_exporter.py
+++ b/exporter/opentelemetry-exporter-otlp-proto-grpc/tests/test_otlp_trace_exporter.py
@@ -29,6 +29,7 @@
 from opentelemetry.exporter.otlp.proto.grpc.trace_exporter import (
     OTLPSpanExporter,
 )
+from opentelemetry.exporter.otlp.proto.grpc.version import __version__
 from opentelemetry.proto.collector.trace.v1.trace_service_pb2 import (
     ExportTraceServiceRequest,
     ExportTraceServiceResponse,
@@ -69,8 +70,6 @@
 from opentelemetry.test.spantestutil import (
     get_span_with_dropped_attributes_events_links,
 )
-from opentelemetry.exporter.otlp.proto.grpc.version import __version__
-
 
 THIS_DIR = os.path.dirname(__file__)
 
@@ -277,21 +276,36 @@ def test_otlp_headers_from_env(self, mock_ssl_channel, mock_secure):
         exporter = OTLPSpanExporter()
         # pylint: disable=protected-access
         self.assertEqual(
-            exporter._headers, (("key1", "value1"),("key2", "VALUE=2"), ("user-agent", "OTel OTLP Exporter Python/" + __version__))
+            exporter._headers,
+            (
+                ("key1", "value1"),
+                ("key2", "VALUE=2"),
+                ("user-agent", "OTel OTLP Exporter Python/" + __version__),
+            ),
         )
         exporter = OTLPSpanExporter(
             headers=(("key3", "value3"), ("key4", "value4"))
         )
         # pylint: disable=protected-access
         self.assertEqual(
-            exporter._headers, (("key3", "value3"), ("key4", "value4"), ("user-agent", "OTel OTLP Exporter Python/" + __version__))
+            exporter._headers,
+            (
+                ("key3", "value3"),
+                ("key4", "value4"),
+                ("user-agent", "OTel OTLP Exporter Python/" + __version__),
+            ),
         )
         exporter = OTLPSpanExporter(
             headers={"key5": "value5", "key6": "value6"}
         )
         # pylint: disable=protected-access
         self.assertEqual(
-            exporter._headers, (("key5", "value5"), ("key6", "value6"), ("user-agent", "OTel OTLP Exporter Python/" + __version__))
+            exporter._headers,
+            (
+                ("key5", "value5"),
+                ("key6", "value6"),
+                ("user-agent", "OTel OTLP Exporter Python/" + __version__),
+            ),
         )
 
     @patch.dict(
@@ -436,8 +450,11 @@ def test_otlp_exporter_otlp_compression_precendence(
     def test_otlp_headers(self, mock_ssl_channel, mock_secure):
         exporter = OTLPSpanExporter()
         # pylint: disable=protected-access
-        #This ensures that there is no other header than standard user-agent.
-        self.assertEqual(exporter._headers, (("user-agent", "OTel OTLP Exporter Python/" + __version__),))
+        # This ensures that there is no other header than standard user-agent.
+        self.assertEqual(
+            exporter._headers,
+            (("user-agent", "OTel OTLP Exporter Python/" + __version__),),
+        )
     @patch("opentelemetry.exporter.otlp.proto.grpc.exporter.backoff")
     @patch("opentelemetry.exporter.otlp.proto.grpc.exporter.sleep")
     def test_handles_backoff_v2_api(self, mock_sleep, mock_backoff):