diff --git a/setup.py b/setup.py
index 1730527..4e920c1 100644
--- a/setup.py
+++ b/setup.py
@@ -10,7 +10,9 @@
 with open(version_file) as f:
     for line in f.read().split("\n"):
         if line.startswith("__version__ ="):
-            version = re.match(r"^\s*__version__\s*=\s*['\"](.*?)['\"]\s*$", line).group(1)
+            version = re.match(
+                r"^\s*__version__\s*=\s*['\"](.*?)['\"]\s*$", line
+            ).group(1)
             break
     else:
         print("No __version__ attribute found in %r" % version_file)