pythonic way of making a config module

Fredrik Lundh fredrik at pythonware.com
Wed Jan 18 17:08:35 CET 2006


andrew.fabbro at gmail.com wrote:

> I'm working on an app that will be deployed on several different
> servers.  In each case, I'll want to change some config info (database
> name, paths, etc.)
>
> In perl, I would have done something like this:
>
>   Package Config;
>   <some exporting mechanics>
>   $dbname = "somename";
>   etc.
>
> And then use'd the module and referenced the vars as $Config::dbname.
>
> What is a pythonic equivalent?  These vars are only changed usually at
> install time.
>
> I could set up a class and then instantiate it, but that seems a
> waste...I guess what I'm looking for is either (a) a way to suck
> variables into a namespace keeping a prefix (without having to prefix
> all the vars with something like config_) - e.g., reference them as
> config.dbname or something - is this execfile?

how about a plain

    import config

?

where config.py contains

    # configuration file
    dbname = "somename"

and is used like

    import config
    db = db_open(config.dbname)

etc.

</F>






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