diff --git a/src/pygptcourse/otel_decorators.py b/src/pygptcourse/otel_decorators.py
index 900cf91..b31fe39 100644
--- a/src/pygptcourse/otel_decorators.py
+++ b/src/pygptcourse/otel_decorators.py
@@ -17,8 +17,11 @@
 from opentelemetry.sdk.trace.export import BatchSpanProcessor
 from opentelemetry.trace import get_tracer_provider, set_tracer_provider
 
+# isort: off
 from pygptcourse.credentials import OpenTelemetryCredentials
 
+# isort: on
+
 logging.getLogger().setLevel(logging.INFO)
 
 
diff --git a/src/pygptcourse/tshirt_launcher.py b/src/pygptcourse/tshirt_launcher.py
index 60c47f5..e158afd 100644
--- a/src/pygptcourse/tshirt_launcher.py
+++ b/src/pygptcourse/tshirt_launcher.py
@@ -9,8 +9,11 @@
 import usb.core  # type: ignore
 import usb.util  # type: ignore
 
+# isort: off
 from pygptcourse.otel_decorators import otel_handler
 
+# isoft: on
+
 logger = logging.getLogger(__name__)
 
 
@@ -228,7 +231,7 @@ def send_command(self, command):
             self.command = command
             self.dev.ctrl_transfer(0x21, 0x09, 0x200, 0, [command])
         except usb.core.USBError as e:
-            logger.warning("SEND ERROR", e)
+            logger.warning(f"SEND ERROR {e}")
 
     @otel_handler.trace
     def move(self, command, duration):
@@ -237,7 +240,7 @@ def move(self, command, duration):
             time.sleep(duration)
             self.send_command(STOP)
         except usb.core.USBError as e:
-            logger.warning("SEND ERROR", e)
+            logger.warning(f"SEND ERROR {e}")
 
     @otel_handler.trace
     def fire(self):