Playing w/ Python 2's ConfigParser module

config.ini

[DEFAULT]
envs: dev,stage, pre-prod
base_url: hello.firefox.com

[SectionOne]
Status: Single
Name: Derek
Value: Yes
Age: 30
Single: True
foo : buzz
envs: dev,stage
version_url: %(base_url)s/__version__

[SectionTwo]
FavoriteColor=Green
skip = false

[stage]
root = call.stage.mozaws.net
root/config.js = %(root)s/config.js
loop_server = loop.stage.mozaws.net
loop_server/push_config = %(loop_server)s/push-server-config

[prod]
root = hello.firefox.com
root/config.js = %(root)s/config.js
loop_server = loop.services.mozilla.com
loop_server/push_config = %(loop_server)s/push-server-config

config.py

import ConfigParser
import csv


def parseCsv(input):
    values = []
    parser = csv.reader([input])
    for fields in parser:
        for i, field in enumerate(fields):
            values.append(field.strip())
    return values


def dumpConfig(config):
    print("---")
    for section in config.sections():
        print("\n[%s]" % section)
        for option in config.options(section):
            print('  %s => %s' % (option, config.get(section, option)))

Config = ConfigParser.ConfigParser()
Config.read("./config.ini")

print("sections: %s" % Config.sections())
print("[SectionOne] options: %s" % Config.options("SectionOne"))

print("")

for key in Config.options('SectionOne'):
    print("key %s => %s" % (key, Config.get('SectionOne', key)))

print("SectionOne `envs` => %s" % parseCsv(Config.get('SectionOne', 'envs')))
print("SectionTwo `envs` => %s" % parseCsv(Config.get('SectionTwo', 'envs')))

print("")

dumpConfig(Config)

"""
for env in Config.get('SectionOne', 'envs').split(','):
  print("got env %s" % env)
"""

output.txt

$ python config.py

sections: ['SectionOne', 'SectionTwo', 'stage', 'prod']
[SectionOne] options: ['status', 'name', 'value', 'age', 'single', 'foo', 'envs', 'version_url', 'base_url']

key status => Single
key name => Derek
key value => Yes
key age => 30
key single => True
key foo => buzz
key envs => dev,stage
key version_url => hello.firefox.com/__version__
key base_url => hello.firefox.com
SectionOne `envs` => ['dev', 'stage']
SectionTwo `envs` => ['dev', 'stage', 'pre-prod']

---

[SectionOne]
  status => Single
  name => Derek
  value => Yes
  age => 30
  single => True
  foo => buzz
  envs => dev,stage
  version_url => hello.firefox.com/__version__
  base_url => hello.firefox.com

[SectionTwo]
  favoritecolor => Green
  skip => false
  envs => dev,stage, pre-prod
  base_url => hello.firefox.com

[stage]
  root => call.stage.mozaws.net
  root/config.js => call.stage.mozaws.net/config.js
  loop_server => loop.stage.mozaws.net
  loop_server/push_config => loop.stage.mozaws.net/push-server-config
  envs => dev,stage, pre-prod
  base_url => hello.firefox.com

[prod]
  root => hello.firefox.com
  root/config.js => hello.firefox.com/config.js
  loop_server => loop.services.mozilla.com
  loop_server/push_config => loop.services.mozilla.com/push-server-config
  envs => dev,stage, pre-prod
  base_url => hello.firefox.com