Recorded merge of revisions 85569-85570 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r85569 | victor.stinner | 2010-10-16 15:14:10 +0200 (sam., 16 oct. 2010) | 4 lines

  Issue #9713, #10114: Parser functions (eg. PyParser_ASTFromFile) expects
  filenames encoded to the filesystem encoding with surrogateescape error handler
  (to support undecodable bytes), instead of UTF-8 in strict mode.
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  r85570 | victor.stinner | 2010-10-16 15:42:53 +0200 (sam., 16 oct. 2010) | 4 lines

  Fix ast_error_finish() and err_input(): filename can be NULL

  Fix my previous commit (r85569).
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diff --git a/Python/ast.c b/Python/ast.c
index 5c17133..590bc90 100644
--- a/Python/ast.c
+++ b/Python/ast.c
@@ -102,6 +102,7 @@
 ast_error_finish(const char *filename)
 {
     PyObject *type, *value, *tback, *errstr, *loc, *tmp;
+    PyObject *filename_obj;
     long lineno;
 
     assert(PyErr_Occurred());
@@ -125,7 +126,16 @@
         Py_INCREF(Py_None);
         loc = Py_None;
     }
-    tmp = Py_BuildValue("(zlOO)", filename, lineno, Py_None, loc);
+    if (filename != NULL)
+        filename_obj = PyUnicode_DecodeFSDefault(filename);
+    else {
+        Py_INCREF(Py_None);
+        filename_obj = Py_None;
+    }
+    if (filename_obj != NULL)
+        tmp = Py_BuildValue("(NlOO)", filename_obj, lineno, Py_None, loc);
+    else
+        tmp = NULL;
     Py_DECREF(loc);
     if (!tmp) {
         Py_DECREF(errstr);