Message 122251 - Python tracker

Message122251

Author	terry.reedy
Recipients	terry.reedy
Date	2010-11-23.23:37:44
SpamBayes Score	0.00026732197
Marked as misclassified	No
Message-id	<1290555468.47.0.0329661397161.issue10516@psf.upfronthosting.co.za>
In-reply-to

Content
Add list.clear() method with obvious semantics. Pro: 1. parallel to set/dict/defaultdict/deque.clear(), usable in generic mutable collection function; 2. makes it easier to switch between list and other collection class; 3. current alternatives are not as obvious; 4. some people seem to expect it. Anti: 1. unneeded; del l[:] or l[:]=[] do same already. Guido: (python-ideas list, 'Set Syntax' thread, today) "FWIW I'm fine with adding list.clear() to 3.3."

Content

Add list.clear() method with obvious semantics.

Pro:
1. parallel to set/dict/defaultdict/deque.clear(),
   usable in generic mutable collection function;
2. makes it easier to switch between list and other collection class;
3. current alternatives are not as obvious;
4. some people seem to expect it.

Anti:
1. unneeded; del l[:] or l[:]=[] do same already.

Guido: (python-ideas list, 'Set Syntax' thread, today)
"FWIW I'm fine with adding list.clear() to 3.3."

History
Date	User	Action	Args
2010-11-23 23:37:48	terry.reedy	set	recipients: + terry.reedy
2010-11-23 23:37:48	terry.reedy	set	messageid: <1290555468.47.0.0329661397161.issue10516@psf.upfronthosting.co.za>
2010-11-23 23:37:44	terry.reedy	link	issue10516 messages
2010-11-23 23:37:44	terry.reedy	create