[Python-checkins] cpython (merge 2.7 -> 2.7): Merge heads.

[ezio.melotti]

http://hg.python.org/cpython/rev/35d85c5c6722
changeset:   80208:35d85c5c6722
branch:      2.7
parent:      80206:781817bbee28
parent:      80207:1bd2b272c568
user:        Ezio Melotti <ezio.melotti at gmail.com>
date:        Sat Nov 03 21:18:57 2012 +0200
summary:
  Merge heads.

files:
  Lib/test/test_bytes.py    |  20 ++++++++++++++++++++
  Misc/NEWS                 |   3 +++
  Objects/bytearrayobject.c |   6 ++++++
  3 files changed, 29 insertions(+), 0 deletions(-)


diff --git a/Lib/test/test_bytes.py b/Lib/test/test_bytes.py
--- a/Lib/test/test_bytes.py
+++ b/Lib/test/test_bytes.py
@@ -635,6 +635,26 @@
         b[3:0] = [42, 42, 42]
         self.assertEqual(b, bytearray([0, 1, 2, 42, 42, 42, 3, 4, 5, 6, 7, 8, 9]))
 
+        b[3:] = b'foo'
+        self.assertEqual(b, bytearray([0, 1, 2, 102, 111, 111]))
+
+        b[:3] = memoryview(b'foo')
+        self.assertEqual(b, bytearray([102, 111, 111, 102, 111, 111]))
+
+        b[3:4] = []
+        self.assertEqual(b, bytearray([102, 111, 111, 111, 111]))
+
+        b[1:] = list(b'uuuu')  # this works only on Python2
+        self.assertEqual(b, bytearray([102, 117, 117, 117, 117]))
+
+        for elem in [5, -5, 0, long(10e20), u'str', 2.3, [u'a', u'b'], [[]]]:
+            with self.assertRaises(TypeError):
+                b[3:4] = elem
+
+        for elem in [[254, 255, 256], [-256, 9000]]:
+            with self.assertRaises(ValueError):
+                b[3:4] = elem
+
     def test_extended_set_del_slice(self):
         indices = (0, None, 1, 3, 19, 300, 1<<333, -1, -2, -31, -300)
         for start in indices:
diff --git a/Misc/NEWS b/Misc/NEWS
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -9,6 +9,9 @@
 Core and Builtins
 -----------------
 
+- Issue #8401: assigning an int to a bytearray slice (e.g. b[3:4] = 5) now
+  raises an error.
+
 - Issue #14700: Fix buggy overflow checks for large width and precision
   in string formatting operations.
 
diff --git a/Objects/bytearrayobject.c b/Objects/bytearrayobject.c
--- a/Objects/bytearrayobject.c
+++ b/Objects/bytearrayobject.c
@@ -636,6 +636,12 @@
         needed = 0;
     }
     else if (values == (PyObject *)self || !PyByteArray_Check(values)) {
+        if (PyNumber_Check(values) || PyUnicode_Check(values)) {
+            PyErr_SetString(PyExc_TypeError,
+                            "can assign only bytes, buffers, or iterables "
+                            "of ints in range(0, 256)");
+            return -1;
+        }
         /* Make a copy and call this function recursively */
         int err;
         values = PyByteArray_FromObject(values);

-- 
Repository URL: http://hg.python.org/cpython