Luke Paireepinart wrote:
On Sat, Mar 13, 2010 at 3:03 AM, Alan Gauld <alan.ga...@btinternet.com
<mailto:alan.ga...@btinternet.com>> wrote:
"Ray Parrish" <c...@cmc.net <mailto:c...@cmc.net>> wrote
print "A %s with dimensions %sx%s has an area of %s." %
(choice, height, width, width*height)
Isn't it a little more understandable to use a construct like
the following?
print "The area of a " + Choice + "is " str(Width)
+ " x " +
str(Height) + " equals " + str(Width * Height) + " square feet"
It depends on where you come from.
Those of us brought up on C or COBOL are used to separating the
presentation from the data. Those brought up with PASCAL and BASIC
are used to iterleaving data with presentation.
One thing - you don't need all the str() calls in your example,
print already calls str() for you. Also comma separators are
better than + signs since the plus operation on strings is quite
expensive - you create a new string for each addition.
print actually doesn't call str if you use concatenation. So the
str() calls are necessary if you do not use "," but use "+" instead.
So there are at least 2 reasons why + is worse than comma.
Another thing to be aware of is that if you use commas,
print inserts a space in the string, which may be either an advantage
or a disadvantage depending on what you're trying to do.
-Luke
Ahhh, thank you for the clarifications. for the cases where spaces are
needed it the commas seem like a pretty good way to do it, but when I
need to add together stuff with no spaces I'll try the formatted method.
Thanks again, Ray Parrish
--
Linux dpkg Software Report script set..
http://www.rayslinks.com/LinuxdpkgSoftwareReport.html
Ray's Links, a variety of links to usefull things, and articles by Ray.
http://www.rayslinks.com
Writings of "The" Schizophrenic, what it's like to be a schizo, and other
things, including my poetry.
http://www.writingsoftheschizophrenic.com
_______________________________________________
Tutor maillist - Tutor@python.org
To unsubscribe or change subscription options:
http://mail.python.org/mailman/listinfo/tutor
