Python 2.2.3 (#1, Jun  1 2003, 23:15:33)
[GCC 3.3 (Debian)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> def foo():
...   while 1: pass
...   return 42
...
>>> def bar():
...   7 + foo() / 11
...
>>> try:
...   bar()
... except KeyboardInterrupt, k:
...   raise Exception(k)
...
Traceback (most recent call last):
  File "<stdin>", line 4, in ?
Exception
>>> try:
...   bar()
... except KeyboardInterrupt, k:
...   raise Exception, k
...
Traceback (most recent call last):
  File "<stdin>", line 4, in ?
KeyboardInterrupt
>>> try:
...   bar()
... except KeyboardInterrupt:
...   raise
...
Traceback (most recent call last):
  File "<stdin>", line 2, in ?
  File "<stdin>", line 2, in bar
  File "<stdin>", line 2, in foo
KeyboardInterrupt
>>>