On 11/10/10 12:26 AM, Lawrence D'Oliveiro wrote:
In message<mailman.793.1289347547.2218.python-l...@python.org>, Robert Kern
wrote:
For me, putting the brackets on their own lines (and using a trailing
comma) has little to do with increasing readability. It's for making
editing easier. Keeping all of the items consistent means that in order to
add, delete, or move any item is the same operation everywhere in the list
whether it is the first item, last item, or any item in between.
Yup, I like to do that when there’s nothing special about the last item in
the list. Sometimes there is (e.g. an enumeration entry naming the number of
values in the enumeration, or an all-zero sentinel marking the end of a
list), in which case I omit the comma to indicate that nothing should come
afterwards.
I remember an early experience with JavaScript (back in the days of Netscape
versus Internet Explorer 5.1 on a Mac), when I found that constructing a
list in this way wasn’t working in IE: turned out it was inserting some kind
of extra phantom list item after that last comma. Sigh...
It's one of the things that pains me every time I code JavaScript. That and the
lack of tuple unpacking.
--
Robert Kern
"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth."
-- Umberto Eco
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