Merge trunk up to 43069, putting re.py back and hopefully making the branch
usable again.
diff --git a/Lib/test/test_re.py b/Lib/test/test_re.py
index 9755005..14a0acf 100644
--- a/Lib/test/test_re.py
+++ b/Lib/test/test_re.py
@@ -3,7 +3,7 @@
 
 from test.test_support import verbose, run_unittest
 import re
-from sre import Scanner
+from re import Scanner
 import sys, os, traceback
 from weakref import proxy