python配置文件操作——configparser模块

# -*- coding: utf-8 -*-
'''
Version : Python27
Author  : Spring God
Date    : 2012-4-26
Info    : 配置文件ini所在文件夹必需存在，否则抛出IOError异常，自处理之
'''

import sys

if sys.hexversion >= 0x03000000:
    import configparser
else:
    import ConfigParser as configparser


def set_conf(ini_file, section, key, value):

    _config = configparser.ConfigParser()

    try:
        _config.read(ini_file)
        if not _config.has_section(section):
            _config.add_section(str(section))
        _config.set(str(section), str(key), str(value))
        with open(ini_file, 'w') as _file:
            _config.write(_file)
            _file.close()
            del _file
    finally:
        del _config


def get_conf(ini_file, section, key):

    _config = configparser.ConfigParser()

    try:
        _config.read(ini_file)
        value = _config.get(str(section), str(key))
    except configparser.NoSectionError:
        value = None
    finally:
        del _config

    return value


def del_conf(ini_file, section, key = None):

    _config = configparser.ConfigParser()

    try:
        _config.read(ini_file)
        if section != None and _config.has_section(section):
            if key != None:
                _config.remove_option(section, key)
            else:
                _config.remove_section(section)
            with open(ini_file, 'w') as _file:
                _config.write(_file)
                _file.close()
                del _file
    finally:
        del _config


if __name__ == '__main__':

    set_conf('set.ini', 'General', 'key', 'value')
    #print(get_conf('set.ini', 'General', 'key'))
    del_conf('set.ini', 'General', 'key')