diff --git a/src/tespy/connections/connection.py b/src/tespy/connections/connection.py
index 9bcc80260..7e1f8b09c 100644
--- a/src/tespy/connections/connection.py
+++ b/src/tespy/connections/connection.py
@@ -36,8 +36,8 @@
 from tespy.tools.fluid_properties import viscosity_mix_ph
 from tespy.tools.fluid_properties.functions import dT_mix_ph_dfluid
 from tespy.tools.fluid_properties.functions import p_sat_T
-from tespy.tools.fluid_properties.helpers import get_number_of_fluids
 from tespy.tools.fluid_properties.helpers import get_mixture_temperature_range
+from tespy.tools.fluid_properties.helpers import get_number_of_fluids
 from tespy.tools.global_vars import ERR
 from tespy.tools.global_vars import fluid_property_data as fpd
 from tespy.tools.helpers import TESPyConnectionError
diff --git a/tests/test_components/test_combustion.py b/tests/test_components/test_combustion.py
index 298601099..b8290babd 100644
--- a/tests/test_components/test_combustion.py
+++ b/tests/test_components/test_combustion.py
@@ -9,9 +9,10 @@
 
 SPDX-License-Identifier: MIT
 """
-import pytest
 import shutil
 
+import pytest
+
 from tespy.components import CombustionChamber
 from tespy.components import CombustionEngine
 from tespy.components import DiabaticCombustionChamber