diff --git a/polyviz/choro.py b/polyviz/choro.py
index e696995..be140ce 100644
--- a/polyviz/choro.py
+++ b/polyviz/choro.py
@@ -48,7 +48,6 @@ def choro(
     dataframe["unit"] = unit
 
     if len(dataframe) > 0:
-
         # Create a new D3Blocks object
         d3_graph = D3Blocks()
         d3_graph.choro(
diff --git a/setup.py b/setup.py
index ddc3808..aef349a 100644
--- a/setup.py
+++ b/setup.py
@@ -23,7 +23,7 @@
 
 def package_files(directory):
     paths = []
-    for (path, directories, filenames) in os.walk(directory):
+    for path, directories, filenames in os.walk(directory):
         for filename in filenames:
             paths.append(os.path.join("..", path, filename))
     return paths