Fix the issue with non-ascii char in doctest.  Issue #9409


Recorded merge of revisions 85495,85500 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r85495 | florent.xicluna | 2010-10-14 22:56:20 +0200 (jeu., 14 oct. 2010) | 3 lines

  Fix the regex to match all kind of filenames, for interactive debugging in doctests. (issue #9409)
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  r85500 | florent.xicluna | 2010-10-14 23:35:58 +0200 (jeu., 14 oct. 2010) | 2 lines

  Add test case for issue #9409, non-ascii char in doctest.  It passes in 3.2 but needs fixing in 2.7.
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diff --git a/Lib/doctest.py b/Lib/doctest.py
index dd579fd..c37ff9e 100644
--- a/Lib/doctest.py
+++ b/Lib/doctest.py
@@ -1333,7 +1333,9 @@
         m = self.__LINECACHE_FILENAME_RE.match(filename)
         if m and m.group('name') == self.test.name:
             example = self.test.examples[int(m.group('examplenum'))]
-            source = example.source.encode('ascii', 'backslashreplace')
+            source = example.source
+            if isinstance(source, unicode):
+                source = source.encode('ascii', 'backslashreplace')
             return source.splitlines(True)
         else:
             return self.save_linecache_getlines(filename, module_globals)