diff --git a/src/aiida_wannier90_workflows/calculations/split.py b/src/aiida_wannier90_workflows/calculations/split.py
index 0558059..56debae 100644
--- a/src/aiida_wannier90_workflows/calculations/split.py
+++ b/src/aiida_wannier90_workflows/calculations/split.py
@@ -1,4 +1,5 @@
 """Calculations for gw2wannier90.py."""
+
 from aiida import orm
 from aiida.common import datastructures
 from aiida.engine import CalcJob
diff --git a/src/aiida_wannier90_workflows/cli/group.py b/src/aiida_wannier90_workflows/cli/group.py
index 59296dc..3d688cd 100644
--- a/src/aiida_wannier90_workflows/cli/group.py
+++ b/src/aiida_wannier90_workflows/cli/group.py
@@ -1,4 +1,5 @@
 """Commands to manipulate groups of `Wannier90BandsWorkChain`."""
+
 import click
 
 from aiida import orm
diff --git a/src/aiida_wannier90_workflows/cli/list.py b/src/aiida_wannier90_workflows/cli/list.py
index 89f55c7..38f0b72 100644
--- a/src/aiida_wannier90_workflows/cli/list.py
+++ b/src/aiida_wannier90_workflows/cli/list.py
@@ -1,4 +1,5 @@
 """Commands to list instances of `Wannier90BandsWorkChain`."""
+
 import click
 
 from aiida import orm
diff --git a/src/aiida_wannier90_workflows/cli/node.py b/src/aiida_wannier90_workflows/cli/node.py
index 2ce5111..c1649dc 100644
--- a/src/aiida_wannier90_workflows/cli/node.py
+++ b/src/aiida_wannier90_workflows/cli/node.py
@@ -1,4 +1,5 @@
 """Command line interface `aiida-wannier90-workflows`."""
+
 import click
 
 from aiida import orm
diff --git a/src/aiida_wannier90_workflows/cli/params.py b/src/aiida_wannier90_workflows/cli/params.py
index c275bb0..8f3e152 100644
--- a/src/aiida_wannier90_workflows/cli/params.py
+++ b/src/aiida_wannier90_workflows/cli/params.py
@@ -1,4 +1,5 @@
 """Module for the workflow parameter type."""
+
 import typing as ty
 
 import click
diff --git a/src/aiida_wannier90_workflows/cli/root.py b/src/aiida_wannier90_workflows/cli/root.py
index 81f41b4..c198831 100644
--- a/src/aiida_wannier90_workflows/cli/root.py
+++ b/src/aiida_wannier90_workflows/cli/root.py
@@ -1,4 +1,5 @@
 """Command line interface `aiida-wannier90-workflows`."""
+
 import click
 
 from aiida.cmdline.groups import VerdiCommandGroup
diff --git a/src/aiida_wannier90_workflows/cli/statistics.py b/src/aiida_wannier90_workflows/cli/statistics.py
index 4f3cf25..9fd210a 100644
--- a/src/aiida_wannier90_workflows/cli/statistics.py
+++ b/src/aiida_wannier90_workflows/cli/statistics.py
@@ -1,4 +1,5 @@
 """Commands to manipulate groups of `Wannier90BandsWorkChain`."""
+
 import click
 
 from aiida.cmdline.params import types
diff --git a/src/aiida_wannier90_workflows/common/types.py b/src/aiida_wannier90_workflows/common/types.py
index 2b6557f..2f2263e 100644
--- a/src/aiida_wannier90_workflows/common/types.py
+++ b/src/aiida_wannier90_workflows/common/types.py
@@ -1,4 +1,5 @@
 """Module with common data types."""
+
 import enum
 
 
diff --git a/src/aiida_wannier90_workflows/parsers/split.py b/src/aiida_wannier90_workflows/parsers/split.py
index bff482e..ffe739c 100644
--- a/src/aiida_wannier90_workflows/parsers/split.py
+++ b/src/aiida_wannier90_workflows/parsers/split.py
@@ -2,6 +2,7 @@
 
 Register parsers via the "aiida.parsers" entry point in setup.json.
 """
+
 import typing as ty
 
 from aiida import orm
diff --git a/src/aiida_wannier90_workflows/utils/bands/__init__.py b/src/aiida_wannier90_workflows/utils/bands/__init__.py
index e465b33..0efbac1 100644
--- a/src/aiida_wannier90_workflows/utils/bands/__init__.py
+++ b/src/aiida_wannier90_workflows/utils/bands/__init__.py
@@ -1,4 +1,5 @@
 """Utility functions for band structure."""
+
 import typing as ty
 
 import numpy as np
diff --git a/src/aiida_wannier90_workflows/utils/code.py b/src/aiida_wannier90_workflows/utils/code.py
index a15b685..9fb5563 100644
--- a/src/aiida_wannier90_workflows/utils/code.py
+++ b/src/aiida_wannier90_workflows/utils/code.py
@@ -1,4 +1,5 @@
 """Functions for codes."""
+
 import typing as ty
 
 from aiida import orm
diff --git a/src/aiida_wannier90_workflows/utils/kpoints.py b/src/aiida_wannier90_workflows/utils/kpoints.py
index f1cb4e8..c8b34e7 100644
--- a/src/aiida_wannier90_workflows/utils/kpoints.py
+++ b/src/aiida_wannier90_workflows/utils/kpoints.py
@@ -1,4 +1,5 @@
 """Functions for processing kpoints."""
+
 import typing as ty
 
 import numpy as np
diff --git a/src/aiida_wannier90_workflows/utils/parser/center.py b/src/aiida_wannier90_workflows/utils/parser/center.py
index 2568e21..03ab7d1 100644
--- a/src/aiida_wannier90_workflows/utils/parser/center.py
+++ b/src/aiida_wannier90_workflows/utils/parser/center.py
@@ -159,9 +159,9 @@ def find_wf_nearest_atom(
         # 0th: atom index
         supercell_translation_with_atoms[idx_start:idx_stop, 0] = iatom
         # 1-3th: supercell translation
-        supercell_translation_with_atoms[
-            idx_start:idx_stop, 1:
-        ] = supercell_translations
+        supercell_translation_with_atoms[idx_start:idx_stop, 1:] = (
+            supercell_translations
+        )
 
     # KD tree for to find nearest neighbours
     kdtree = cKDTree(supercell_with_atoms)
diff --git a/src/aiida_wannier90_workflows/utils/pseudo/__init__.py b/src/aiida_wannier90_workflows/utils/pseudo/__init__.py
index e3b381c..2e51e80 100644
--- a/src/aiida_wannier90_workflows/utils/pseudo/__init__.py
+++ b/src/aiida_wannier90_workflows/utils/pseudo/__init__.py
@@ -1,4 +1,5 @@
 """Utility functions for pseudo potential family."""
+
 import typing as ty
 
 from aiida import orm
diff --git a/src/aiida_wannier90_workflows/utils/pseudo/data/__init__.py b/src/aiida_wannier90_workflows/utils/pseudo/data/__init__.py
index cd18ba2..7404f14 100644
--- a/src/aiida_wannier90_workflows/utils/pseudo/data/__init__.py
+++ b/src/aiida_wannier90_workflows/utils/pseudo/data/__init__.py
@@ -1,4 +1,5 @@
 """Utility functions for pseudo potential metadata."""
+
 import json
 import os
 import typing as ty
diff --git a/src/aiida_wannier90_workflows/utils/pseudo/upf.py b/src/aiida_wannier90_workflows/utils/pseudo/upf.py
index 7a92a60..9d1c85e 100644
--- a/src/aiida_wannier90_workflows/utils/pseudo/upf.py
+++ b/src/aiida_wannier90_workflows/utils/pseudo/upf.py
@@ -1,4 +1,5 @@
 """Utility functions for parsing pseudo potential file."""
+
 import xml.etree.ElementTree as ET
 
 from aiida import orm
diff --git a/src/aiida_wannier90_workflows/utils/scdm.py b/src/aiida_wannier90_workflows/utils/scdm.py
index 9f9f76d..edd7f6b 100644
--- a/src/aiida_wannier90_workflows/utils/scdm.py
+++ b/src/aiida_wannier90_workflows/utils/scdm.py
@@ -1,4 +1,5 @@
 """Functions for SCDM fitting."""
+
 import typing as ty
 
 import numpy as np
diff --git a/src/aiida_wannier90_workflows/utils/structure.py b/src/aiida_wannier90_workflows/utils/structure.py
index b9521d0..1c9c7b9 100644
--- a/src/aiida_wannier90_workflows/utils/structure.py
+++ b/src/aiida_wannier90_workflows/utils/structure.py
@@ -1,4 +1,5 @@
 """Functions for structures."""
+
 import pathlib
 import typing as ty
 
diff --git a/src/aiida_wannier90_workflows/utils/workflows/__init__.py b/src/aiida_wannier90_workflows/utils/workflows/__init__.py
index 73f653d..0a6886c 100644
--- a/src/aiida_wannier90_workflows/utils/workflows/__init__.py
+++ b/src/aiida_wannier90_workflows/utils/workflows/__init__.py
@@ -1,4 +1,5 @@
 """Utility functions for manipulating nodes."""
+
 from aiida import orm
 
 
diff --git a/src/aiida_wannier90_workflows/utils/workflows/builder/projections.py b/src/aiida_wannier90_workflows/utils/workflows/builder/projections.py
index 60d8d1f..71ba081 100644
--- a/src/aiida_wannier90_workflows/utils/workflows/builder/projections.py
+++ b/src/aiida_wannier90_workflows/utils/workflows/builder/projections.py
@@ -1,4 +1,5 @@
 """Functions to guess Wannier90 projections."""
+
 import typing as ty
 
 from aiida_quantumespresso.common.types import ElectronicType
diff --git a/src/aiida_wannier90_workflows/utils/workflows/builder/serializer.py b/src/aiida_wannier90_workflows/utils/workflows/builder/serializer.py
index da19de0..2ce1c4e 100644
--- a/src/aiida_wannier90_workflows/utils/workflows/builder/serializer.py
+++ b/src/aiida_wannier90_workflows/utils/workflows/builder/serializer.py
@@ -1,4 +1,5 @@
 """Functions for serialize builder."""
+
 import typing as ty
 
 import numpy as np
diff --git a/src/aiida_wannier90_workflows/utils/workflows/builder/setter.py b/src/aiida_wannier90_workflows/utils/workflows/builder/setter.py
index 9b6de54..50c5e24 100644
--- a/src/aiida_wannier90_workflows/utils/workflows/builder/setter.py
+++ b/src/aiida_wannier90_workflows/utils/workflows/builder/setter.py
@@ -1,4 +1,5 @@
 """Functions for changing builder."""
+
 import typing as ty
 
 from aiida import orm
diff --git a/src/aiida_wannier90_workflows/utils/workflows/group.py b/src/aiida_wannier90_workflows/utils/workflows/group.py
index c895b78..4b2b084 100644
--- a/src/aiida_wannier90_workflows/utils/workflows/group.py
+++ b/src/aiida_wannier90_workflows/utils/workflows/group.py
@@ -1,4 +1,5 @@
 """Functions for group of workchains."""
+
 import typing as ty
 
 from aiida import orm
diff --git a/src/aiida_wannier90_workflows/utils/workflows/plot/distance.py b/src/aiida_wannier90_workflows/utils/workflows/plot/distance.py
index 0e2b283..a7ca1de 100644
--- a/src/aiida_wannier90_workflows/utils/workflows/plot/distance.py
+++ b/src/aiida_wannier90_workflows/utils/workflows/plot/distance.py
@@ -1,4 +1,5 @@
 """Functions for analyzing the band distances of WorkChain results."""
+
 import typing as ty
 
 import numpy as np
diff --git a/src/aiida_wannier90_workflows/utils/workflows/pw.py b/src/aiida_wannier90_workflows/utils/workflows/pw.py
index 7daa848..f4b3635 100644
--- a/src/aiida_wannier90_workflows/utils/workflows/pw.py
+++ b/src/aiida_wannier90_workflows/utils/workflows/pw.py
@@ -1,4 +1,5 @@
 """Utility functions for processing pw.x related workchains."""
+
 import typing as ty
 
 from aiida import orm
diff --git a/src/aiida_wannier90_workflows/workflows/bands.py b/src/aiida_wannier90_workflows/workflows/bands.py
index d72197c..b23e972 100644
--- a/src/aiida_wannier90_workflows/workflows/bands.py
+++ b/src/aiida_wannier90_workflows/workflows/bands.py
@@ -1,4 +1,5 @@
 """WorkChain to automatically calculate Wannier band structure."""
+
 import pathlib
 import typing as ty
 
diff --git a/src/aiida_wannier90_workflows/workflows/base/open_grid.py b/src/aiida_wannier90_workflows/workflows/base/open_grid.py
index 9adcb65..16b4c31 100644
--- a/src/aiida_wannier90_workflows/workflows/base/open_grid.py
+++ b/src/aiida_wannier90_workflows/workflows/base/open_grid.py
@@ -1,4 +1,5 @@
 """Wrapper workchain for OpenGridCalculation to automatically handle several errors."""
+
 import pathlib
 import typing as ty
 
diff --git a/src/aiida_wannier90_workflows/workflows/base/projwfc.py b/src/aiida_wannier90_workflows/workflows/base/projwfc.py
index e5abe2a..206331e 100644
--- a/src/aiida_wannier90_workflows/workflows/base/projwfc.py
+++ b/src/aiida_wannier90_workflows/workflows/base/projwfc.py
@@ -1,4 +1,5 @@
 """Wrapper workchain for ProjwfcCalculation to automatically handle several errors."""
+
 import pathlib
 import typing as ty
 
diff --git a/src/aiida_wannier90_workflows/workflows/base/pw2wannier90.py b/src/aiida_wannier90_workflows/workflows/base/pw2wannier90.py
index d802b45..0c08b0d 100644
--- a/src/aiida_wannier90_workflows/workflows/base/pw2wannier90.py
+++ b/src/aiida_wannier90_workflows/workflows/base/pw2wannier90.py
@@ -1,4 +1,5 @@
 """Wrapper workchain for Pw2wannier90Calculation to automatically handle several errors."""
+
 import pathlib
 import typing as ty
 
diff --git a/src/aiida_wannier90_workflows/workflows/base/qebaserestart.py b/src/aiida_wannier90_workflows/workflows/base/qebaserestart.py
index 8e42939..4fe5faf 100644
--- a/src/aiida_wannier90_workflows/workflows/base/qebaserestart.py
+++ b/src/aiida_wannier90_workflows/workflows/base/qebaserestart.py
@@ -1,4 +1,5 @@
 """Wrapper workchain for BaseRestartWorkChain to automatically handle several QE errors."""
+
 import re
 
 from aiida import orm
@@ -171,9 +172,9 @@ def handle_output_stdout_incomplete(self, calculation):
                             # This should not happen, in this case the cmdline is wrong
                             continue
                         try:
-                            cmdline[
-                                idx + 1
-                            ] = f"{int(cmdline[idx + 1]) // self._mpi_proc_reduce_factor}"
+                            cmdline[idx + 1] = (
+                                f"{int(cmdline[idx + 1]) // self._mpi_proc_reduce_factor}"
+                            )
                         except ValueError:
                             continue
                 settings["cmdline"] = cmdline
diff --git a/src/aiida_wannier90_workflows/workflows/base/wannier90.py b/src/aiida_wannier90_workflows/workflows/base/wannier90.py
index 67a5f67..31e4059 100644
--- a/src/aiida_wannier90_workflows/workflows/base/wannier90.py
+++ b/src/aiida_wannier90_workflows/workflows/base/wannier90.py
@@ -1,4 +1,5 @@
 """Wrapper workchain for `Wannier90Calculation` to automatically handle several errors."""
+
 import pathlib
 import typing as ty
 
diff --git a/src/aiida_wannier90_workflows/workflows/open_grid.py b/src/aiida_wannier90_workflows/workflows/open_grid.py
index d0711e8..e544602 100644
--- a/src/aiida_wannier90_workflows/workflows/open_grid.py
+++ b/src/aiida_wannier90_workflows/workflows/open_grid.py
@@ -1,4 +1,5 @@
 """Wannierisation workflow using open_grid.x to bypass the nscf step."""
+
 # pylint: disable=protected-access
 import pathlib
 import typing as ty
diff --git a/src/aiida_wannier90_workflows/workflows/optimize.py b/src/aiida_wannier90_workflows/workflows/optimize.py
index 298117c..92313d5 100644
--- a/src/aiida_wannier90_workflows/workflows/optimize.py
+++ b/src/aiida_wannier90_workflows/workflows/optimize.py
@@ -1,4 +1,5 @@
 """Workchain to automatically optimize dis_proj_min/max for projectability disentanglement."""
+
 import pathlib
 import typing as ty
 import warnings
diff --git a/src/aiida_wannier90_workflows/workflows/projwfcbands.py b/src/aiida_wannier90_workflows/workflows/projwfcbands.py
index 6d0d5ac..3117321 100644
--- a/src/aiida_wannier90_workflows/workflows/projwfcbands.py
+++ b/src/aiida_wannier90_workflows/workflows/projwfcbands.py
@@ -1,4 +1,5 @@
 """WorkChain to automatically calculate QE projected band structure."""
+
 import pathlib
 import typing as ty
 
diff --git a/src/aiida_wannier90_workflows/workflows/split.py b/src/aiida_wannier90_workflows/workflows/split.py
index 28bfafa..b9fcb5f 100644
--- a/src/aiida_wannier90_workflows/workflows/split.py
+++ b/src/aiida_wannier90_workflows/workflows/split.py
@@ -1,4 +1,5 @@
 """Workchain to automatically optimize dis_proj_min/max for projectability disentanglement."""
+
 import copy
 import pathlib
 import typing as ty
@@ -492,9 +493,9 @@ def prepare_val_inputs(self):
             inputs["structure"] = self.ctx["current_structure"]
 
         if self.should_run_split():
-            inputs[
-                "remote_input_folder"
-            ] = self.ctx.workchain_split.outputs.remote_folder_val
+            inputs["remote_input_folder"] = (
+                self.ctx.workchain_split.outputs.remote_folder_val
+            )
 
         if self.should_run_valcond():
             parameters = inputs["parameters"].get_dict()
@@ -573,9 +574,9 @@ def prepare_cond_inputs(self):
             inputs["structure"] = self.ctx["current_structure"]
 
         if self.should_run_split():
-            inputs[
-                "remote_input_folder"
-            ] = self.ctx.workchain_split.outputs.remote_folder_cond
+            inputs["remote_input_folder"] = (
+                self.ctx.workchain_split.outputs.remote_folder_cond
+            )
 
         if self.should_run_valcond():
             parameters = inputs["parameters"].get_dict()
diff --git a/src/aiida_wannier90_workflows/workflows/wannier90.py b/src/aiida_wannier90_workflows/workflows/wannier90.py
index fd77f72..30c1a2c 100644
--- a/src/aiida_wannier90_workflows/workflows/wannier90.py
+++ b/src/aiida_wannier90_workflows/workflows/wannier90.py
@@ -1,4 +1,5 @@
 """Base class for Wannierisation workflow."""
+
 # pylint: disable=protected-access
 import pathlib
 import typing as ty
@@ -786,9 +787,9 @@ def prepare_pw2wannier90_inputs(self):
             if "workchain_projwfc" not in self.ctx:
                 raise ValueError("Needs to run projwfc for SCDM projection")
             base_inputs["bands"] = self.ctx.workchain_projwfc.outputs.bands
-            base_inputs[
-                "bands_projections"
-            ] = self.ctx.workchain_projwfc.outputs.projections
+            base_inputs["bands_projections"] = (
+                self.ctx.workchain_projwfc.outputs.projections
+            )
 
         inputs["parent_folder"] = self.ctx.current_folder
         inputs["nnkp_file"] = self.ctx.workchain_wannier90_pp.outputs.nnkp_file
diff --git a/tests/cli/test_commands.py b/tests/cli/test_commands.py
index 7eca592..09bff30 100644
--- a/tests/cli/test_commands.py
+++ b/tests/cli/test_commands.py
@@ -1,4 +1,5 @@
 """Tests for CLI commands."""
+
 from click import Context, Group
 
 from aiida_wannier90_workflows.cli import cmd_root
diff --git a/tests/utils/conftest.py b/tests/utils/conftest.py
index f1949ce..29fbc61 100644
--- a/tests/utils/conftest.py
+++ b/tests/utils/conftest.py
@@ -1,4 +1,5 @@
 """Fixtures for testing bands."""
+
 import pytest
 
 # pylint: disable=redefined-outer-name,too-many-statements
diff --git a/tests/utils/test_bands.py b/tests/utils/test_bands.py
index 561921f..a9fb256 100644
--- a/tests/utils/test_bands.py
+++ b/tests/utils/test_bands.py
@@ -1,4 +1,5 @@
 """Unit tests for the :py:mod:`~aiida_quantumespresso.utils.bands` module."""
+
 import numpy as np
 
 
diff --git a/tests/utils/test_kpoints.py b/tests/utils/test_kpoints.py
index 02ee03a..29ba7fd 100644
--- a/tests/utils/test_kpoints.py
+++ b/tests/utils/test_kpoints.py
@@ -1,4 +1,5 @@
 """Unit tests for the :py:mod:`~aiida_quantumespresso.utils.kpoints` module."""
+
 import numpy as np
 
 from aiida import orm
diff --git a/tests/utils/workflows/test_builder.py b/tests/utils/workflows/test_builder.py
index a6c65f8..50e9ead 100644
--- a/tests/utils/workflows/test_builder.py
+++ b/tests/utils/workflows/test_builder.py
@@ -1,4 +1,5 @@
 """Unit tests for the :py:mod:`~aiida_quantumespresso.utils.workflows.builder` module."""
+
 import numpy as np
 import pytest
 
diff --git a/tests/workflows/__init__.py b/tests/workflows/__init__.py
index d892ac2..7d5d833 100644
--- a/tests/workflows/__init__.py
+++ b/tests/workflows/__init__.py
@@ -1,4 +1,5 @@
 """Tests for the `Wannier90WorkChain` class."""
+
 from aiida.engine.utils import instantiate_process
 from aiida.manage.manager import get_manager
 
diff --git a/tests/workflows/base/test_open_grid.py b/tests/workflows/base/test_open_grid.py
index b01f941..c815991 100644
--- a/tests/workflows/base/test_open_grid.py
+++ b/tests/workflows/base/test_open_grid.py
@@ -1,4 +1,5 @@
 """Tests for the `OpenGridBaseWorkChain` class."""
+
 import pytest
 
 from aiida.common import AttributeDict
diff --git a/tests/workflows/base/test_projwfc.py b/tests/workflows/base/test_projwfc.py
index db3d3b1..9cac0f7 100644
--- a/tests/workflows/base/test_projwfc.py
+++ b/tests/workflows/base/test_projwfc.py
@@ -1,4 +1,5 @@
 """Tests for the `ProjwfcBaseWorkChain` class."""
+
 import pytest
 
 from aiida.common import AttributeDict
diff --git a/tests/workflows/base/test_pw2wannier90.py b/tests/workflows/base/test_pw2wannier90.py
index cf8c176..4c78bed 100644
--- a/tests/workflows/base/test_pw2wannier90.py
+++ b/tests/workflows/base/test_pw2wannier90.py
@@ -1,4 +1,5 @@
 """Tests for the `Pw2wannier90BaseWorkChain` class."""
+
 import pytest
 
 from aiida.common import AttributeDict
diff --git a/tests/workflows/base/test_wannier90.py b/tests/workflows/base/test_wannier90.py
index a4b5cdb..fcac028 100644
--- a/tests/workflows/base/test_wannier90.py
+++ b/tests/workflows/base/test_wannier90.py
@@ -1,4 +1,5 @@
 """Tests for the `Wannier90BaseWorkChain` class."""
+
 import pytest
 
 from aiida.common import AttributeDict
diff --git a/tests/workflows/conftest.py b/tests/workflows/conftest.py
index 943f408..81ff8cc 100644
--- a/tests/workflows/conftest.py
+++ b/tests/workflows/conftest.py
@@ -1,4 +1,5 @@
 """Fixtures for testing workflows."""
+
 from pathlib import Path
 
 from plumpy import ProcessState
diff --git a/tests/workflows/protocols/base/test_open_grid.py b/tests/workflows/protocols/base/test_open_grid.py
index c831a2f..0b7d9a8 100644
--- a/tests/workflows/protocols/base/test_open_grid.py
+++ b/tests/workflows/protocols/base/test_open_grid.py
@@ -1,4 +1,5 @@
 """Tests for the ``OpenGridBaseWorkChain.get_builder_from_protocol`` method."""
+
 from aiida.engine import ProcessBuilder
 
 from aiida_wannier90_workflows.workflows.base.open_grid import OpenGridBaseWorkChain
diff --git a/tests/workflows/protocols/base/test_projwfc.py b/tests/workflows/protocols/base/test_projwfc.py
index 25d94a7..06b8b46 100644
--- a/tests/workflows/protocols/base/test_projwfc.py
+++ b/tests/workflows/protocols/base/test_projwfc.py
@@ -1,4 +1,5 @@
 """Tests for the ``ProjwfcBaseWorkChain.get_builder_from_protocol`` method."""
+
 from aiida.engine import ProcessBuilder
 
 from aiida_wannier90_workflows.workflows.base.projwfc import ProjwfcBaseWorkChain
diff --git a/tests/workflows/protocols/base/test_pw2wannier90.py b/tests/workflows/protocols/base/test_pw2wannier90.py
index 19a75b3..c86f481 100644
--- a/tests/workflows/protocols/base/test_pw2wannier90.py
+++ b/tests/workflows/protocols/base/test_pw2wannier90.py
@@ -1,4 +1,5 @@
 """Tests for the ``Pw2wannier90BaseWorkChain.get_builder_from_protocol`` method."""
+
 import pytest
 
 from aiida.engine import ProcessBuilder
diff --git a/tests/workflows/protocols/base/test_wannier90.py b/tests/workflows/protocols/base/test_wannier90.py
index d40d2fa..5b19bbe 100644
--- a/tests/workflows/protocols/base/test_wannier90.py
+++ b/tests/workflows/protocols/base/test_wannier90.py
@@ -1,4 +1,5 @@
 """Tests for the ``Wannier90BaseWorkChain.get_builder_from_protocol`` method."""
+
 import pytest
 
 from aiida.engine import ProcessBuilder
diff --git a/tests/workflows/protocols/test_protocols.py b/tests/workflows/protocols/test_protocols.py
index 9b0f6b8..b42aeab 100644
--- a/tests/workflows/protocols/test_protocols.py
+++ b/tests/workflows/protocols/test_protocols.py
@@ -1,4 +1,5 @@
 """General tests for the protocol methods."""
+
 import pytest
 
 from aiida_wannier90_workflows.workflows.bands import Wannier90BandsWorkChain
diff --git a/tests/workflows/test_wannier90.py b/tests/workflows/test_wannier90.py
index fba78ef..bc1a556 100644
--- a/tests/workflows/test_wannier90.py
+++ b/tests/workflows/test_wannier90.py
@@ -1,4 +1,5 @@
 """Tests for the `Wannier90WorkChain` class."""
+
 import io
 
 from plumpy.process_states import ProcessState