From 0aff6f126334f26423502977f9a70d008c14828a Mon Sep 17 00:00:00 2001
From: "willmcgugan@gmail.com"
 <willmcgugan@gmail.com@67cdc799-7952-0410-af00-57a81ceafa0f>
Date: Tue, 10 Sep 2013 08:50:01 +0000
Subject: Allow unicode conversion for errors containing non-ascii strings.

git-svn-id: http://pyfilesystem.googlecode.com/svn/trunk@877 67cdc799-7952-0410-af00-57a81ceafa0f
---
 fs/errors.py            | 8 +++++++-
 fs/tests/test_errors.py | 6 ++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/fs/errors.py b/fs/errors.py
index 076de4b..3528e2f 100644
--- a/fs/errors.py
+++ b/fs/errors.py
@@ -39,6 +39,7 @@ __all__ = ['FSError',
 
 import sys
 import errno
+import six
 
 from fs.path import *
 from fs.local_functools import wraps
@@ -63,7 +64,12 @@ class FSError(Exception):
         return str(self.msg % keys)
 
     def __unicode__(self):
-        return unicode(self.msg) % self.__dict__
+        keys = {}
+        for k,v in self.__dict__.iteritems():
+            if isinstance(v, six.binary_type):
+                v = v.decode(sys.getfilesystemencoding(), errors='replace')
+            keys[k] = v
+        return unicode(self.msg, encoding=sys.getfilesystemencoding(), errors='replace') % keys
 
     def __reduce__(self):
         return (self.__class__,(),self.__dict__.copy(),)
diff --git a/fs/tests/test_errors.py b/fs/tests/test_errors.py
index 2b2fa64..51d0262 100644
--- a/fs/tests/test_errors.py
+++ b/fs/tests/test_errors.py
@@ -1,3 +1,4 @@
+# -*- encoding: utf-8 -*-
 """
 
   fs.tests.test_errors:  testcases for the fs error classes functions
@@ -24,3 +25,8 @@ class TestErrorPickling(unittest.TestCase):
         assert_dump_load(UnsupportedError("makepony"))
 
 
+class TestFSError(unittest.TestCase):
+
+    def test_unicode_representation_of_error_with_non_ascii_characters(self):
+        path_error = PathError('/Shïrê/Frødø')
+        _ = unicode(path_error)
\ No newline at end of file
-- 
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