Fix flake warnings.

data/casia-facescrub/remove-lfw-names.py

@@ -2,7 +2,6 @@
 
 import os
 import shutil
-import sys
 
 lfwDir = '../lfw/raw'
 lfwNames = os.listdir(lfwDir)
@@ -10,6 +9,7 @@ lfwNames = [name.replace("_", "").lower() for name in lfwNames]
 
 names = os.listdir('raw')
 
+
 def inLfw(name):
     name = name.strip().lower()
     for lfwName in lfwNames: