Issue #23209: Revert change on selectors, test_selectors failed.

diff --git a/Lib/selectors.py b/Lib/selectors.py
index b2f4c2bad22707ad66152c3868413af0073cff3d..e4ad4cb18c4a593f2cee66fd36fa9c83f7de04a4 100644 (file)
--- a/Lib/selectors.py
+++ b/Lib/selectors.py
@@ -256,7 +256,6 @@ class _BaseSelectorImpl(BaseSelector):
 
     def close(self):
         self._fd_to_key.clear()
-        self._map = None
 
     def get_map(self):
         return self._map