Issue 6665: Fix fnmatch to properly match filenames with newlines in them.

Lib/fnmatch.py

@@ -104,4 +104,4 @@ def translate(pat):
                 res = '%s[%s]' % (res, stuff)
         else:
             res = res + re.escape(c)
-    return res + "$"
+    return res + '\Z(?ms)'

Lib/test/test_fnmatch.py

@@ -32,11 +32,18 @@ class FnmatchTestCase(unittest.TestCase):
         check('a', 'b', 0)
 
         # these test that '\' is handled correctly in character sets;
-        # see SF bug #???
+        # see SF bug #409651
         check('\\', r'[\]')
         check('a', r'[!\]')
         check('\\', r'[!\]', 0)
 
+        # test that filenames with newlines in them are handled correctly.
+        # http://bugs.python.org/issue6665
+        check('foo\nbar', 'foo*')
+        check('foo\nbar\n', 'foo*')
+        check('\nfoo', 'foo*', False)
+        check('\n', '*')
+
 
 def test_main():
     test_support.run_unittest(FnmatchTestCase)

Misc/NEWS

@@ -359,6 +359,8 @@ Core and Builtins
 Library
 -------
 
+- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
+
 - Issue #1135: Add the XView and YView mix-ins to avoid duplicating
   the xview* and yview* methods.