diff --git a/locking_tests/locking_tests.py b/locking_tests/locking_tests.py
index cb33f08..c4f2953 100755
--- a/locking_tests/locking_tests.py
+++ b/locking_tests/locking_tests.py
@@ -12,9 +12,12 @@
 from yacman import write_lock
 
 import logging
+
 _LOGGER = logging.getLogger()  # root logger
 stream = logging.StreamHandler(sys.stdout)
-fmt = logging.Formatter("%(levelname)s %(asctime)s | %(name)s:%(module)s:%(lineno)d > %(message)s ")
+fmt = logging.Formatter(
+    "%(levelname)s %(asctime)s | %(name)s:%(module)s:%(lineno)d > %(message)s "
+)
 stream.setFormatter(fmt)
 _LOGGER.setLevel(os.environ.get("LOGLEVEL", "DEBUG"))
 _LOGGER.addHandler(stream)
@@ -31,7 +34,9 @@
 with write_lock(ym) as locked_y:
     locked_y.rebase()
     random_wait_time = random()
-    _LOGGER.debug(f"Sleeping for {random_wait_time} to simulate process {args.id} updating the file")
+    _LOGGER.debug(
+        f"Sleeping for {random_wait_time} to simulate process {args.id} updating the file"
+    )
     sleep(random_wait_time)
     locked_y.update({args.id: 1})
     _LOGGER.debug(f"Writing to file for process {args.id}.")