python 多级菜单

#!/usr/bin/env python 
# coding:utf-8 

province_list={
    '福建省':{
        '长乐市':{
            '文武砂':['壶东村','壶井村'],
            '漳港镇':['南澳','北澳']
        },
        '福州市':('金山区','晋安区','鼓楼区','台江区')},
    '广东省':{
        '深圳市':{
            '南山区':['科苑','高新园'],
            '福田区':['岗厦','会展中心']
        },
        '广州市':('越秀区','荔湾区','海珠区','天河区')}
}
#print(province_list['福建省']['福州市'])
while True:
    for i in province_list:
        print(i)
    choice = input("Please choise the province>>>:")
    if choice in province_list:
        while True:
            for i in province_list[choice]:
                print ('\t',i)
            choice2 = input("Please choise the city>>>:")
            if choice2 in province_list[choice]:
                while True:
                    for i in province_list[choice][choice2]:
                        print('\t\t',i)
                    choice3 = input("Please choise the country>>>:")
                    if choice3 in province_list[choice][choice2]:
                        while True:
                            for i in province_list[choice][choice2][choice3]:
                                print('\t\t\t',i)
                            choice4 = input("Input 'q' to return >>>:")
                            if choice4 == 'q':
                                break
                    else:
                        break
            else:
                break
    else:
        break