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authorThomas Wouters <thomas@python.org>2006-08-23 23:20:29 (GMT)
committerThomas Wouters <thomas@python.org>2006-08-23 23:20:29 (GMT)
commit9a6e62b947ebb5547ca9a164f6145a461b98d86a (patch)
treed566337c0211e6a515a987d0d682635885973f83
parentfbfe0936078e16829f36a6e61b511c123fd17b17 (diff)
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Fix buglet in slice assignment of bytesobjects: assigning to b[3:0] ('stop'
being before 'start') would actually assign to b[0:0] (or whatever 'stop' was)
-rw-r--r--Lib/test/test_bytes.py3
-rw-r--r--Objects/bytesobject.c2
2 files changed, 5 insertions, 0 deletions
diff --git a/Lib/test/test_bytes.py b/Lib/test/test_bytes.py
index d45ff64..210f08c 100644
--- a/Lib/test/test_bytes.py
+++ b/Lib/test/test_bytes.py
@@ -235,6 +235,9 @@ class BytesTest(unittest.TestCase):
b[3:5] = [3, 4, 5, 6]
self.assertEqual(b, bytes(range(10)))
+
+ b[3:0] = [42, 42, 42]
+ self.assertEqual(b, bytes([0, 1, 2, 42, 42, 42, 3, 4, 5, 6, 7, 8, 9]))
def test_setslice_trap(self):
# This test verifies that we correctly handle assigning self
diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
index d6cce6d..3127c9d 100644
--- a/Objects/bytesobject.c
+++ b/Objects/bytesobject.c
@@ -310,6 +310,8 @@ bytes_setslice(PyBytesObject *self, Py_ssize_t lo, Py_ssize_t hi,
if (lo < 0)
lo = 0;
+ if (hi < lo)
+ hi = lo;
if (hi > self->ob_size)
hi = self->ob_size;