Move boolcheck to PyShell
diff --git a/Lib/idlelib/PyShell.py b/Lib/idlelib/PyShell.py
index 5b4744e..ffdde4e 100644
--- a/Lib/idlelib/PyShell.py
+++ b/Lib/idlelib/PyShell.py
@@ -12,6 +12,8 @@
 import types
 import exceptions
 
+import boolcheck
+
 import linecache
 from code import InteractiveInterpreter