Linux获取用户主目录

#!/usr/bin/python# -*- coding:utf-8 -*-import sysimport os

class get_home_path(object):    def __init__(self, username):        self.username = username        self.user_dict = {}

def read_passwd(self):        with open("/etc/passwd", "r") as user_info:            for f in user_info.readlines():                f_list = f.strip(‘\n‘).split(‘:‘)                self.user_dict[f_list[0]] = f_list[5]        return self.user_dict

def get_home_dir(self):        user_dict = self.read_passwd()        try:            home_dir = user_dict[self.username]            return home_dir        except Exception, e:            print "%s user not exist!" % e            sys.exit()

if __name__ == ‘__main__‘:    if len(sys.argv) == 1:        print os.path.expanduser(‘~‘)    elif len(sys.argv) == 2:        username = sys.argv[1]        get_path = get_home_path(username)        print get_path.get_home_dir()    else:        print "Parameter input is incorrect,more than one."