Issue 1820: structseq objects did not work with the % formatting operator or isinstance(t, tuple).
Orignal patch (without tests) by Leif Walsh.
diff --git a/Lib/test/test_structseq.py b/Lib/test/test_structseq.py
index 83c7ccf..02c2f72 100644
--- a/Lib/test/test_structseq.py
+++ b/Lib/test/test_structseq.py
@@ -26,6 +26,12 @@
for i in xrange(-len(t), len(t)-1):
self.assertEqual(t[i], astuple[i])
+ def test_tuple_subclass(self):
+ # Issue 1820
+ t = time.localtime()
+ s = ('%s ' * len(t)) % t # This used to fail because t was not a tuple subclass
+ self.assert_(isinstance(t, tuple))
+
def test_repr(self):
t = time.gmtime()
self.assert_(repr(t))