[Python-Dev] list splicing
Hi, has anybody considered adding something like this: a = [1, 2] [ 'x', *a, 'y'] as syntactic sugar for a = [1, 2] [ 'x' ] + a + [ 'y' ]. Notes: - This is a common operation - To me, the splicing form looks much better than the concatenation form - It can be implemented more efficiently than a bunch of list concatenations - This would be similar to the apply feature [ foo(*a) ]. The '*' operator is reminiscent of dereferencing operators in C-derived languages. Alternatively it could be '@', like perl's implicit array splicing, and Lisp's ',@' in backquoted lists. - (I know splicing traditionally refers to something else in Python, but other languages refer to this as splicing, and the English definition of splice applies better to this.) -- Karl 2005-09-18 18:26 ___ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
Re: [Python-Dev] textwrap.py wordsep_re
On 2005-02-24 05:04 PST, Greg Ward writes: Greg Post a patch to SF and assign it to me. Make sure the Greg unit tests still pass, and add a new one that doesn't Greg pass without your fix. Done. Patch id 1149508. -- Karl 2005-02-27 10:29 ___ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
Re: [Python-Dev] textwrap.py wordsep_re
On 2005-02-24 05:04 PST, Greg Ward writes: Greg Post a patch to SF and assign it to me. Make sure the Greg unit tests still pass, and add a new one that doesn't Greg pass without your fix. Pester me mercilessly until I Greg act on it. (I think your change is probably fine, but I Greg need more time to examine it than I have right now.) I had already posted a patch on Aahz's advice. I'll write a unit test. -- Karl 2005-02-24 13:18 ___ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
