Globals between modules ?
PGMoscatt
pgmoscatt at optushome.com.au
Thu Mar 10 08:07:36 EST 2005
Roy Smith wrote:
> In article <42302be9$0$2232$9a6e19ea at news.newshosting.com>,
> PGMoscatt <pgmoscatt at optushome.com.au> wrote:
>
>> Does Python allow a 'global' variable that can be used between different
>> modules used within an app ?
>>
>> Pete
>
> You could explicitly import __main__ and use that as a global namespace
> (see example below). Or (perhaps a better idea), you could have a module
> dedicated to global storage, and import that in all your other modules
> instead of importing __main__.
>
> ---------------------------------
> Roy-Smiths-Computer:play$ cat global.py
> #!/usr/bin/env python
>
> import a
> import b
>
> a.set()
> print "x = %s" % x
> print "b.get() = %s" % b.get()
> ---------------------------------
> Roy-Smiths-Computer:play$ cat a.py
> import __main__
>
> def set():
> __main__.x = "hello"
> ---------------------------------
> Roy-Smiths-Computer:play$ cat b.py
> import __main__
>
> def get():
> return __main__.x
> ---------------------------------
> Roy-Smiths-Computer:play$ ./global.py
> x = hello
> b.get() = hello
Thanks Roy.... yep, that makes sense.
Thanks again.
Pete
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