diff --git a/.github/workflows/pip.yml b/.github/workflows/pip.yml
index 19836dd..cdb491f 100644
--- a/.github/workflows/pip.yml
+++ b/.github/workflows/pip.yml
@@ -15,18 +15,18 @@ jobs:
       matrix:
         platform: [ubuntu-latest]
         python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
-        
+
     runs-on: ${{ matrix.platform }}
-    
+
     steps:
     - uses: actions/checkout@v4
       with:
         submodules: true
-        
+
     - uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
-        
+
     - name: Install system dependencies
       run: |
         sudo apt-get update
@@ -36,16 +36,15 @@ jobs:
           build-essential \
           cmake \
           ninja-build
-          
+
     - name: Add requirements
       run: python -m pip install --upgrade pip wheel setuptools
-      
+
     - name: Build and install
       run: pip install --verbose .[test]
-      
+
     - name: Test import
       run: python -c "import pylibbpf; print('Import successful')"
-      
+
     - name: Test
       run: python -m pytest -v
-      
\ No newline at end of file
diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index 0dcd081..26a99e9 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -18,13 +18,13 @@ jobs:
     - uses: actions/checkout@v4
       with:
         submodules: true
-        
+
     - name: Build SDist
       run: pipx run build --sdist
-      
+
     - name: Check metadata
       run: pipx run twine check dist/*
-      
+
     - uses: actions/upload-artifact@v4
       with:
         name: cibw-sdist
@@ -38,46 +38,46 @@ jobs:
       matrix:
         # Build for both x86_64 and aarch64
         arch: [x86_64, aarch64]
-        
+
     steps:
     - uses: actions/checkout@v4
       with:
         submodules: true
-        
+
     # Set up QEMU for aarch64 emulation
     - name: Set up QEMU
       if: matrix.arch == 'aarch64'
       uses: docker/setup-qemu-action@v3
       with:
         platforms: arm64
-        
+
     - name: Build wheels
       uses: pypa/cibuildwheel@v2.17
       env:
         # Only build for Linux
         CIBW_PLATFORM: linux
         CIBW_ARCHS_LINUX: ${{ matrix.arch }}
-        
+
         # Python versions to build for
         CIBW_BUILD: "cp38-* cp39-* cp310-* cp311-* cp312-*"
         CIBW_SKIP: "*-musllinux*"  # Skip musl builds, focus on glibc
-        
+
         # Install system dependencies before building
         CIBW_BEFORE_ALL_LINUX: >
           yum install -y epel-release &&
           yum install -y libbpf-devel kernel-headers ||
           (apt-get update && apt-get install -y libbpf-dev linux-headers-generic)
-        
+
         # Test the built wheels
         CIBW_TEST_COMMAND: "python -c 'import pylibbpf; print(f\"pylibbpf {pylibbpf.__version__} imported successfully\")'"
-        
+
         # Skip testing on emulated architectures (too slow)
         CIBW_TEST_SKIP: "*-linux_aarch64"
-        
+
     - name: Verify clean directory
       run: git diff --exit-code
       shell: bash
-      
+
     - name: Upload wheels
       uses: actions/upload-artifact@v4
       with:
@@ -95,7 +95,7 @@ jobs:
     environment:
       name: pypi
       # url: https://pypi.org/project/pylibbpf/${{ github.event.release.name }}
-      
+
     steps:
     - name: Download all artifacts
       uses: actions/download-artifact@v4
@@ -103,7 +103,7 @@ jobs:
         pattern: cibw-*
         path: dist
         merge-multiple: true
-        
+
     - name: Publish to PyPI
       uses: pypa/gh-action-pypi-publish@release/v1
       with:
diff --git a/setup.py b/setup.py
index 4a6e20f..6e995a7 100644
--- a/setup.py
+++ b/setup.py
@@ -1,5 +1,4 @@
 import os
-import re
 import subprocess
 import sys
 from pathlib import Path
@@ -50,7 +49,7 @@ class CMakeBuild(build_ext):
             f"-DCMAKE_BUILD_TYPE={cfg}",  # not used on MSVC, but no harm
         ]
         build_args = []
-        
+
         # Adding CMake arguments set as environment variable
         # (needed e.g. to build for ARM OSx on conda-forge)
         if "CMAKE_ARGS" in os.environ:
diff --git a/tests/test_basic.py b/tests/test_basic.py
index f0417db..1d63b64 100644
--- a/tests/test_basic.py
+++ b/tests/test_basic.py
@@ -1,5 +1,6 @@
 import pylibbpf as m
 
+
 def test_main():
     assert m.__version__ == "0.0.1"
     assert m.add(1, 2) == 3