On Sat, Nov 7, 2009 at 8:54 AM, Steven D'Aprano <st...@remove-this-cybersource.com.au> wrote: > On Fri, 06 Nov 2009 10:16:58 -0600, Peng Yu wrote: > >> What is a list-comprehension? > > Time for you to Read The Fine Manual. > > http://docs.python.org/tutorial/index.html > > >> I tried the following code. The list 'l' will be ['a','b','c'] rather >> than ['b','c'], which is what I want. It seems 'remove' will disrupt the >> iterator, right? I am wondering how to make the code correct. >> >> l = ['a', 'a', 'b', 'c'] >> for x in l: >> if x == 'a': >> l.remove(x) > > > Oh lordy, it's Shlemiel the Painter's algorithm. Please don't do that for > lists with more than a handful of items. Better still, please don't do > that. > > http://www.joelonsoftware.com/articles/fog0000000319.html
I understand what is Shlemiel the Painter's algorithm. But if the iterator can be intelligently adjusted in my code upon 'remove()', is my code Shlemiel the Painter's algorithm? -- http://mail.python.org/mailman/listinfo/python-list
