diff --git a/etc/clean.py b/etc/clean.py
index fc6768c..3f28833 100644
--- a/etc/clean.py
+++ b/etc/clean.py
@@ -1,18 +1,25 @@
+#!/usr/bin/env python
 import os
 
 
 def main():
     path = '.'
     count = 0
-    for name, folders, files in os.walk(path):
+    for name, folders, files in os.walk(path, topdown=False):
         for file in files:
             if file.endswith('.pyc') \
                or file.endswith('~') \
                or file.endswith('.pyo'):
                 count += 1
                 os.remove(os.path.join(name, file))
+        for folder in folders:
+            if folder == '__pycache__':
+                try:
+                    os.rmdir(os.path.join(name, folder))
+                except OSError:
+                    pass
 
-    print "Deleted %s files" % count
+    print("Deleted %s files" % count)
 
 
 if __name__ == "__main__":