Revert copy_reg -> copyreg rename.
diff --git a/Lib/idlelib/rpc.py b/Lib/idlelib/rpc.py
index a8c6afb..e0bcf2c 100644
--- a/Lib/idlelib/rpc.py
+++ b/Lib/idlelib/rpc.py
@@ -37,7 +37,7 @@
import threading
import queue
import traceback
-import copyreg
+import copy_reg
import types
import marshal
@@ -60,8 +60,8 @@
# assert isinstance(fn, type.FunctionType)
# return repr(fn)
-copyreg.pickle(types.CodeType, pickle_code, unpickle_code)
-# copyreg.pickle(types.FunctionType, pickle_function, unpickle_function)
+copy_reg.pickle(types.CodeType, pickle_code, unpickle_code)
+# copy_reg.pickle(types.FunctionType, pickle_function, unpickle_function)
BUFSIZE = 8*1024
LOCALHOST = '127.0.0.1'