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Preferences file

#############################

Contents of the preferences file:

[Options]
color = "white"

[Linux]
tmp_dir = "/tmp"

[Windows]
tmp_dir = "c:/tmp"

import ConfigParser
import platform

# from the manwer project (http://code.google.com/p/manwer/)
def get_preferences(section, filename='preferences'):
    #let's create a ConfigParser object
    conf = ConfigParser.ConfigParser()
    conf.read(filename)
    val = {}
    try:
        val = dict((v, eval(k)) for v, k in conf.items(section))
    except ConfigParser.NoSectionError:
        val = {}
    finally:
        return val

##########

color = get_preferences('Options').get('color', 'black')   # let it be 'black' if missing from the preferences
print color   # white

tmp_dir = get_preferences(platform.system()).get('tmp_dir', None)
print tmp_dir   # /tmp