1 files changed, 3 insertions, 0 deletions
diff --git a/Lib/test/regrtest.py b/Lib/test/regrtest.py
index 9f18ea4..a3df394 100755
--- a/Lib/test/regrtest.py
+++ b/Lib/test/regrtest.py
@@ -450,6 +450,9 @@ def main(tests=None, testdir=None, verbose=0, quiet=False,
         print("==  ", platform.platform(aliased=True),
                       "%s-endian" % sys.byteorder)
         print("==  ", os.getcwd())
+        import pprint, errno
+        print("== Errno map:")
+        pprint.pprint(errno.errorcode)
 
     alltests = findtests(testdir, stdtests, nottests)
     selected = tests or args or alltests