What is the best way to get values from a config file?

[BigBear]

I have 15 values that I want to get from a config file and store them in separate variables.

I am using

from ConfigParser import SafeConfigParser

parser = SafeConfigParser()
parser.read(configFile)

and it is a really good library.



Option #1
If I change the name of the variable and want it to match the config file entry I have to edit the corresponding line in the function

Python:

def fromConfig():     #open file     localOne = parser.get(section, 'one')     localTwo = parser.get(section, 'two')     return one, two one = '' two = '' #etc one, two = fromConfig()

Option #2
It is cleaner to see where the variables get their values from, but then I would be opening and closing the file for every variable

Python:

def getValueFromConfigFile(option):     #open file     value = parser.get(section, option)     return value one = getValueFromConfigFile("one") two = getValueFromConfigFile("two")

Option #3
This one doesn't make much sense since I have to have another list of all my variable names, but the function is cleaner.

Python:

def getValuesFromConfigFile(options):     #open file     values = []     for option in options:         values.append(parser.get(section, option))     return values one = '' two = '' configList = ["one", "two"] one, two = getValuesFromConfigFile(configList)