Merge heads

1 files changed, 9 insertions, 0 deletions

diff --git a/Lib/test/test_source_encoding.py b/Lib/test/test_source_encoding.py
index cd9d2b374c..39b623e637 100644
--- a/Lib/test/test_source_encoding.py
+++ b/Lib/test/test_source_encoding.py
@@ -5,6 +5,7 @@ from test.support import TESTFN, unlink, unload
 import importlib
 import os
 import sys
+import subprocess
 
 class SourceEncodingTest(unittest.TestCase):
 
@@ -58,6 +59,14 @@ class SourceEncodingTest(unittest.TestCase):
         # two bytes in common with the UTF-8 BOM
         self.assertRaises(SyntaxError, eval, b'\xef\xbb\x20')
 
+    def test_20731(self):
+        sub = subprocess.Popen([sys.executable, 
+                        os.path.join(os.path.dirname(__file__),
+                                     'coding20731.py')],
+                        stderr=subprocess.PIPE)
+        err = sub.communicate()[1]
+        self.assertEquals(err, b'')
+
     def test_error_message(self):
         compile(b'# -*- coding: iso-8859-15 -*-\n', 'dummy', 'exec')
         compile(b'\xef\xbb\xbf\n', 'dummy', 'exec')