diff --git a/src/qha/calculator.py b/src/qha/calculator.py
index a81ab47..79f94da 100644
--- a/src/qha/calculator.py
+++ b/src/qha/calculator.py
@@ -12,7 +12,7 @@
 """
 
 import textwrap
-from typing import Dict, Any, Optional
+from typing import Any, Dict, Optional
 
 import numpy as np
 from lazy_property import LazyProperty
@@ -20,19 +20,31 @@
 import qha.multi_configurations.different_phonon_dos as different_phonon_dos
 import qha.multi_configurations.same_phonon_dos as same_phonon_dos
 import qha.tools
-from qha.grid_interpolation import FinerGrid
-from qha.basic_io.out import save_to_output
 from qha.basic_io import read_input
+from qha.basic_io.out import save_to_output
+from qha.grid_interpolation import FinerGrid
 from qha.single_configuration import free_energy
-from qha.thermodynamics import *
+from qha.thermodynamics import (
+    adiabatic_bulk_modulus,
+    bulk_modulus_derivative,
+    entropy,
+    gruneisen_parameter,
+    isobaric_heat_capacity,
+    isothermal_bulk_modulus,
+    pressure,
+    thermal_expansion_coefficient,
+    thermodynamic_potentials,
+    volume,
+    volumetric_heat_capacity,
+)
 from qha.type_aliases import Vector
 from qha.unit_conversion import (
+    b3_to_a3,
     gpa_to_ry_b3,
     ry_b3_to_gpa,
-    b3_to_a3,
-    ry_to_j_mol,
     ry_to_ev,
     ry_to_j,
+    ry_to_j_mol,
 )
 from qha.v2p import v2p
 
@@ -292,9 +304,7 @@ def desired_pressure_status(self) -> None:
                            DESIRED PRESSURE is too high (NTV is too large)!
                            QHA results might not be right!
                            Please reduce the NTV accordingly, for example, try to set NTV < {:4d}.
-                           """.format(
-                        ntv_max
-                    )
+                           """.format(ntv_max)
                 ),
             )