Issue #26837: assertSequenceEqual() now correctly outputs non-stringified

differing items (like bytes in the -b mode).  This affects assertListEqual()
and assertTupleEqual().

1 files changed, 3 insertions, 3 deletions

diff --git a/Lib/unittest/case.py b/Lib/unittest/case.py
index ac8d67d..524a7b1 100644
--- a/Lib/unittest/case.py
+++ b/Lib/unittest/case.py
@@ -964,7 +964,7 @@ class TestCase(object):
 
                 if item1 != item2:
                     differing += ('\nFirst differing element %d:\n%s\n%s\n' %
-                                 (i, item1, item2))
+                                 ((i,) + _common_shorten_repr(item1, item2)))
                     break
             else:
                 if (len1 == len2 and seq_type is None and
@@ -977,7 +977,7 @@ class TestCase(object):
                              'elements.\n' % (seq_type_name, len1 - len2))
                 try:
                     differing += ('First extra element %d:\n%s\n' %
-                                  (len2, seq1[len2]))
+                                  (len2, safe_repr(seq1[len2])))
                 except (TypeError, IndexError, NotImplementedError):
                     differing += ('Unable to index element %d '
                                   'of first %s\n' % (len2, seq_type_name))
@@ -986,7 +986,7 @@ class TestCase(object):
                              'elements.\n' % (seq_type_name, len2 - len1))
                 try:
                     differing += ('First extra element %d:\n%s\n' %
-                                  (len1, seq2[len1]))
+                                  (len1, safe_repr(seq2[len1])))
                 except (TypeError, IndexError, NotImplementedError):
                     differing += ('Unable to index element %d '
                                   'of second %s\n' % (len1, seq_type_name))