Is it really worth it to not implement list.clear and answer this question over and over again?
I see no reason that a list shouldn't have a .clear method. -- Zachary Burns (407)590-4814 Aim - Zac256FL Production Engineer (Digital Overlord) Zindagi Games On Thu, Apr 2, 2009 at 5:32 PM, Esmail <ebo...@hotmail.com> wrote: > Emile van Sebille wrote: >> >> Esmail wrote: >>> >>> Diez B. Roggisch wrote: >>>> >>>> online.serv...@ymail.com schrieb: >>>>> >>>>> python's list needs a thing list.clear() like c# arraylist >>>>> and >>>> >>>> some_list[:] = [] >>> >>> I agree that this is nice and clear, but as a relative newbie >>> wouldn't >>> >>> some_list = [] >> >> This is different -- it creates a new list. Consider: >> >> >>> some_list = [1,2,3] >> >>> d = some_list >> >>> d[1] >> 2 >> >>> some_list[:] = ['a','b','c'] >> >>> d[1] >> 'b' >> >>> some_list = [1,2,3] >> >>> d[1] >> 'b' >> >> the [:] form allows references into the list to remain valid while the >> direct assignment dopes not. > > Ah .. thanks for clarifying this .. makes sense. > > Also, thank you Luis for your post. > > Esmail > > -- > http://mail.python.org/mailman/listinfo/python-list > -- http://mail.python.org/mailman/listinfo/python-list
