From: Chad Perrin <code@...>
Date: 2011-05-18T07:45:36+09:00
Subject: Re: need help with "module" and variable

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On Wed, May 18, 2011 at 06:57:59AM +0900, 7stud -- wrote:
> Don't use global variables--ever.

=46rom what I've seen, whenever someone uses a global variable, it's
because the person washaving difficulty figuring out how to get data from
one scope into another (and sometimes back again).  It's true that using
global variables is pretty much never the right answer, if for no other
reason than the fact it can cause issues if there are two globals with
the same name.

So, yeah, yours is decent advice.  There's just one problem: when people
say "don't use globals" and leave it at that, they give the people who
used globals no ideas what other recourse they have available to them.
Don't just say "don't use global variables".  Try saying "You could do
this other thing instead, to get what you need without using a global
variable."

--=20
Chad Perrin [ original content licensed OWL: http://owl.apotheon.org ]

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