[Tutor] global question

[Alan Gauld]

"Ara Kooser" <ghashsnaga at gmail.com> wrote

>   I am back working on a text adventure game using functions. I 
> broke
> down the game into areas (modules) but I am having trouble getting 
> the
> other modules to recognize the globals I have set in the main 
> program.

Yes you can't see from a module into the client that is importing.
The solution is either: don't use golobals (usually by creating 
classes
that hold the "global" data internally. - this is the "best" solution 
from
a programming/ computer science point of view. Or, put all the globals
into a module which can be imported by all other modules.

Like this:

# globals.py
foo = 42
bar = 27

# mymod.py
import globals
def f():
   print globals.foo + globals.bar

# main.py
import globals, mymod

globals.foo = 125
mymod.f()


Its obviously more verbose and poses some restrictions in that
you are sharing data and any attempt at multi-threading will
surely end in tears, but otherwise it should work...

HTH,

-- 
Alan Gauld
Author of the Learn to Program web site
http://www.freenetpages.co.uk/hp/alan.gauld