diff --git a/mpsd-software-environment.py b/mpsd-software-environment.py
index c738ac1ea394a8ef6a109a7b931ef056eb996e78..fb6d6b149c5b6ea6e59d83c88c142e02725b0cfc 100755
--- a/mpsd-software-environment.py
+++ b/mpsd-software-environment.py
@@ -91,7 +91,7 @@ def read_metadata_from_logfile(logfile: Union[str, Path]) -> dict:
     }
 
 
-def set_up_logging(loglevel="warning", filename='gol.log'):
+def set_up_logging(loglevel="warning", filename="gol.log"):
     """Set up logging.
 
     This function sets up the logging configuration for the script.
diff --git a/tests.py b/tests.py
index 0e59d03c45c8b493fecd7de6869d3031a8305f49..d440fd3abf03e76c579502a5d4ededa5a3324460 100644
--- a/tests.py
+++ b/tests.py
@@ -1,14 +1,12 @@
 """Tests for mpsd-software-environment.py."""
 
 import importlib
-import logging
 import os
 import shutil
 import subprocess
 from pathlib import Path
 
 import pytest
-import logging
 
 mod = importlib.import_module("mpsd-software-environment")
 
@@ -315,20 +313,24 @@ def test_install_environment_zlib():
         lines = f.read()
         assert "zlib" in lines
 
+
 def test_metadata_logging(tmp_path):
     """Test that metadata is logged and read correctly."""
     # Test that the metadata is logged correctly
-    mod.set_up_logging(loglevel="debug", filename=tmp_path/"test-metadata.log")
+    mod.set_up_logging(loglevel="debug", filename=tmp_path / "test-metadata.log")
     key = "important_key"
     value = "important_value"
-    mod.log_metadata(key,value)
-    expected_log = f"{mod.config_vars['metadata_tag_open']}{key}:{value}{mod.config_vars['metadata_tag_close']}"
-    with open(tmp_path/"test-metadata.log", "r") as f:
+    mod.log_metadata(key, value)
+    open_tag = mod.config_vars["metadata_tag_open"]
+    close_tag = mod.config_vars["metadata_tag_close"]
+    expected_log = f"{open_tag}{key}:{value}{close_tag}"
+    with open(tmp_path / "test-metadata.log", "r") as f:
         assert expected_log in f.read()
     # Test that the metadata is read correctly
-    read_dict = mod.read_metadata_from_logfile(tmp_path/"test-metadata.log")
+    read_dict = mod.read_metadata_from_logfile(tmp_path / "test-metadata.log")
     assert read_dict[key] == value
 
+
 def test_interface(tmp_path):
     """Test other things (not implemented yet)."""
     pass