Keith Dart wrote:
try: dict[a].append(b) except KeyError: dict[a] = [b]
or my favorite Python shortcut: dict.setdefault(a, []).append(b)
Kent
Hey, when did THAT get in there? ;-) That's nice. However, the try..except block is a useful pattern for many similiar situations that the OP might want to keep in mind. It is usually better than the following, also:
if dct.has_key(a):
dct[a].append(b)
else:
dct[a] = [b]
Which is a pattern I have seen often.
-- \/ \/ (O O) -- --------------------oOOo~(_)~oOOo---------------------------------------- Keith Dart <[EMAIL PROTECTED]> vcard: <http://www.kdart.com/~kdart/kdart.vcf> public key: ID: F3D288E4 URL: <http://www.kdart.com/~kdart/public.key> ============================================================================ -- http://mail.python.org/mailman/listinfo/python-list
