use yaml as config, 似乎不是很理想

config-yaml.py

import yaml
import configparser
# print(dir(yaml))
data = yaml.load("""
a:
    a1: a1
    a2: a2
    a3: "%(a1)s-%(a2)s"
b:
    b1: b1
    b2: b2
    b3:
        - 1
        - 2
        - 3
        - oops
""")
print(data)


parser = configparser.ConfigParser()
parser.read_dict(data)

for section in parser.sections():
    print(section)
    for key, value in parser.items(section):
        print(key, value)
    #print (parser.items(section,))
print(repr(parser.get('b', 'b3')))
print(repr(parser.get('b', 'b3')))