[Tutor] Configuaration files and paths?

[Martin Walsh]

Allen Fowler wrote:
> 
<snip>
> 
> As a follow-up question, how do give my modules stored under ./lib access to the data in my ConfigParser object?  (For instance, database connection string, storage path, etc.)
> 
> I guess a global ConfigParser object would work, but that seems wrong.
> 

And yet, to me it seems wrong to have more than one instance of config
data floating around. Instead of using a global you can pass the config
object, or just the appropriate attributes, around to your lib
functions/classes, as necessary -- and keep the flow in your main
script. For example (highly speculative, FWIW),

# app.py
from database.connection import getcursor
from lib.persist import Storage

def main():
    confp = ConfigParser()
    confp.read(join_relative(__file__, 'config/prefs.ini'))
    config = confp.defaults()

    curs = getcursor(config[db_connection_string])

    ...

    storage = Storage(config[storage_path])

    ...

HTH,
Marty