diff --git a/glances/exports/export_asyncio.py b/glances/exports/export_asyncio.py
index 71ec6a98..6a37f295 100644
--- a/glances/exports/export_asyncio.py
+++ b/glances/exports/export_asyncio.py
@@ -156,10 +156,7 @@ class GlancesExportAsyncio(GlancesExport):
 
         # Submit the export operation to the background event loop
         try:
-            future = asyncio.run_coroutine_threadsafe(
-                self._async_export(name, columns, points),
-                self.loop
-            )
+            future = asyncio.run_coroutine_threadsafe(self._async_export(name, columns, points), self.loop)
             # Don't block forever - use a short timeout
             future.result(timeout=1)
         except asyncio.TimeoutError:
diff --git a/glances/exports/glances_nats/__init__.py b/glances/exports/glances_nats/__init__.py
index 97941cfd..b9f17529 100644
--- a/glances/exports/glances_nats/__init__.py
+++ b/glances/exports/glances_nats/__init__.py
@@ -130,4 +130,5 @@ class Export(GlancesExportAsyncio):
             logger.error(f"NATS Unexpected error publishing {subject_name}: {e}", exc_info=True)
             raise
 
+
 # End of glances/exports/glances_nats/__init__.py
diff --git a/tests-data/issues/issue3341-NATS/pub.py b/tests-data/issues/issue3341-NATS/pub.py
index 0123b08c..674c4e96 100644
--- a/tests-data/issues/issue3341-NATS/pub.py
+++ b/tests-data/issues/issue3341-NATS/pub.py
@@ -11,6 +11,7 @@ async def main():
     await nc.publish("glances.test", b'A test')
     await nc.flush()
 
+
 if __name__ == '__main__':
     asyncio.run(main())
 
diff --git a/tests-data/issues/issue3341-NATS/sub.py b/tests-data/issues/issue3341-NATS/sub.py
index 07cf5b62..a42fb205 100644
--- a/tests-data/issues/issue3341-NATS/sub.py
+++ b/tests-data/issues/issue3341-NATS/sub.py
@@ -25,6 +25,7 @@ async def main():
 
     await nc.close()
 
+
 if __name__ == '__main__':
     asyncio.run(main())