diff -r 7fa3e824a4ee Lib/py_compile.py

--- a/Lib/py_compile.py	Tue Oct 29 22:25:06 2013 -0400

+++ b/Lib/py_compile.py	Wed Oct 30 11:08:31 2013 +0100

@@ -108,15 +108,15 @@

     byte-compile all installed files (or all files in selected

     directories).

     """

-    with tokenize.open(file) as f:

-        try:

-            st = os.fstat(f.fileno())

-        except AttributeError:

-            st = os.stat(file)

-        timestamp = int(st.st_mtime)

-        size = st.st_size & 0xFFFFFFFF

-        codestring = f.read()

     try:

+        with tokenize.open(file) as f:

+            try:

+                st = os.fstat(f.fileno())

+            except AttributeError:

+                st = os.stat(file)

+            timestamp = int(st.st_mtime)

+            size = st.st_size & 0xFFFFFFFF

+            codestring = f.read()

         codeobject = builtins.compile(codestring, dfile or file, 'exec',

                                       optimize=optimize)

     except Exception as err:

diff -r 7fa3e824a4ee Lib/test/test_py_compile.py

--- a/Lib/test/test_py_compile.py	Tue Oct 29 22:25:06 2013 -0400

+++ b/Lib/test/test_py_compile.py	Wed Oct 30 11:08:31 2013 +0100

@@ -54,6 +54,10 @@

         self.assertTrue(os.path.exists(self.pyc_path))

         self.assertFalse(os.path.exists(self.cache_path))

+    def test_bad_coding(self):

+        bad_coding = os.path.join(os.path.dirname(__file__), 'bad_coding2.py')

+        self.assertIsNone(py_compile.compile(bad_coding, doraise=False))

+

 def test_main():

     support.run_unittest(PyCompileTests)