Python shelve方法完成信息录入小工具源码

import sys, shelve
def store_person(db):
    '''
    Store your info.
    '''
    pid = raw_input('Enter your ID: ')
    person = {}
    person['name'] = raw_input('Enter your name: ')
    person['age'] = raw_input('Enter your age: ')
    person['phone'] = raw_input('Enter your phone number: ')
    db[pid] = person

#www.iplaypy.com

def lookup_person(db):
    '''
    Lookup your info.
    '''
    pid = raw_input('Enter the ID: ')
    if pid in db.keys():        #检查输入的ID是否存在
        field = raw_input('What do you want to lookup?(Name, Age, Phone)')
        field = field.strip()   #删除field中可能有的空格和换行符
        if field in ('Name', 'Age', 'Phone'):   #检查用户的输入       
            field = field.strip().lower()
                        print field.capitalize() + ':', db[pid][field]
        else:
            print 'The input is error!Please enter: Name, Age or Phone'
    else:
        print "The ID is not exist!"
        #lookup_person(db)



def print_help():
    print '''
    The available commands are:
    store, lookup,quit,?
    '''

def enter_command():
    cmd = raw_input('Enter your command("?" for help): ')
    cmd = cmd.strip().lower()
    return cmd

def main():
    database = shelve.open('D:\\python-test\\test.dat')
    try:
        while True:
            cmd = enter_command()
            if cmd == 'store':
                store_person(database)
            elif cmd == 'lookup':
                lookup_person(database)
            elif cmd == '?':
                print_help()
            elif cmd == 'quit':
                return
    finally:
        database.close()

if __name__ == '__main__': main()