using 'global' across source files.

[Mark Jackson]

Bram Stolk <bram at sara.nl> writes:
> Remco Gerlich wrote:

> > You need "print funcs.val" now (just like you call the function with
> > "funcs.change_val()).
> 
> Huh??
> Mind you, 'val' is defined in prog.py, NOT funcs.py.

But the val that change_val changes is defined in funcs.py, NOT prog.py.

> > "global" just means "global inside this module".
> 
> Well, that's my whole problem.
> How do I refer to 'val' if it is in another *unnamed* module?

And if you don't name the module, how should Python decide *which* val
you want?  There can be one in each namespace, each referring to an
object (which may or may not all be distinct).

> According to the manuals, it should simply be in the namespace
> '__main__', but that doesnt work either.

You're misreading the manuals.  Can you tell us how you drew this
conclusion?  (Possibly the manuals could be clearer.)

-- 
Mark Jackson - http://www.alumni.caltech.edu/~mjackson
	The power of accurate observation is frequently called
	cynicism by those who don't have it.
			- George Bernard Shaw