test.conf

my_list = [1, 2, 3]
server = 'localhost'

test.py

class ConfigOptions(object):

  def __init__(self, path):
    self.config = {}
    self.path = path
    execfile(self.path, self.config, self.config)

  def __contains__(self, name):
    return name in self.config or name in self

  def __getattr__(self, name):
    try:
      return self.config[name]
    except KeyError:
      try:
        return self[name]
      except KeyError:
        raise AttributeError(name)

options = ConfigOptions('test.conf')

print options.my_list
print options.server