issue 10527: fix missing import
diff --git a/Lib/multiprocessing/connection.py b/Lib/multiprocessing/connection.py
index f083c54..f73faf6 100644
--- a/Lib/multiprocessing/connection.py
+++ b/Lib/multiprocessing/connection.py
@@ -41,6 +41,7 @@
 import time
 import tempfile
 import itertools
+import select
 
 import _multiprocessing
 from multiprocessing import current_process, AuthenticationError