diff --git a/src/executor.py b/src/executor.py
index 642740a..7ba113d 100644
--- a/src/executor.py
+++ b/src/executor.py
@@ -33,8 +33,6 @@
 from signal import SIGTERM
 from hashlib import sha1
 
-from os import set_blocking
-
 class Executor :
     def __init__(self,io_list,callback):
         self.io_list=io_list