Backport of fix to allow exception instances to be sliced once again.
diff --git a/Lib/test/test_exceptions.py b/Lib/test/test_exceptions.py
index 27d88a0..345569f 100644
--- a/Lib/test/test_exceptions.py
+++ b/Lib/test/test_exceptions.py
@@ -279,6 +279,13 @@
'pickled "%r", attribute "%s' %
(e, checkArgName))
+ def testSlicing(self):
+ # Test that you can slice an exception directly instead of requiring
+ # going through the 'args' attribute.
+ args = (1, 2, 3)
+ exc = BaseException(*args)
+ self.failUnlessEqual(exc[:], args)
+
def testKeywordArgs(self):
# test that builtin exception don't take keyword args,
# but user-defined subclasses can if they want
diff --git a/Misc/NEWS b/Misc/NEWS
index 06bd3ac..d3e9852 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -4,6 +4,17 @@
(editors: check NEWS.help for information about editing NEWS using ReST.)
+What's New in Python 2.5.1c1?
+=============================
+
+*Release date: XX-XXX-XXXX*
+
+Core and builtins
+-----------------
+
+- Allow exception instances to be directly sliced again.
+
+
What's New in Python 2.5 (final)
================================
diff --git a/Objects/exceptions.c b/Objects/exceptions.c
index fda2ab1..bfe28a9 100644
--- a/Objects/exceptions.c
+++ b/Objects/exceptions.c
@@ -190,12 +190,19 @@
return PySequence_GetItem(self->args, index);
}
+static PyObject *
+BaseException_getslice(PyBaseExceptionObject *self,
+ Py_ssize_t start, Py_ssize_t stop)
+{
+ return PySequence_GetSlice(self->args, start, stop);
+}
+
static PySequenceMethods BaseException_as_sequence = {
0, /* sq_length; */
0, /* sq_concat; */
0, /* sq_repeat; */
(ssizeargfunc)BaseException_getitem, /* sq_item; */
- 0, /* sq_slice; */
+ (ssizessizeargfunc)BaseException_getslice, /* sq_slice; */
0, /* sq_ass_item; */
0, /* sq_ass_slice; */
0, /* sq_contains; */