添加禁止原因模塊錯誤字典對象沒有屬性追加和加載和保存方法無法保存和正確加載

Question

有人可以幫助我添加信息到字典中的一個鍵並相應地更新信息？

也可以有人給我一個更好的方法來保存和加載比我目前正在做的？

我的字典鍵當前方法：

def add_banreason(roomname, username, reason): 
    roomname = roomname.lower() 
    username = username.lower() 
    if not roomname in banr.banr_database: 
     banr.banr_database[roomname] = {username:reason} 
    else: 
     banr.banr_database[roomname].append({username:reason}) 

我來到這裏的錯誤說dict object has no attribute append

我正在看着一個採用這樣沒有錯誤：

{roomname: {username:reason, username:reason, username:reason}, roomname: {username:reason, username:reason, username:reason}} 

我目前的保存和加載方法：

### load the database 
    def load(): 
    banr_database = {} 
    with open("banr.DB","r") as t: 
     data = t.read() 
    if data != "": 
     for l in data.split("\n"): 
     a,b = l.split("):(",1) 
     c = [w.split(")-(") for w in b.split("(:)")] 
     banr_database[a] = c 
    banr.banr_database = banr_database 

    ### save the database 
    def save(): 
    l = [] 
    for a,b in banr.banr_database.items(): 
     c = "(:)".join([")-(".join(w) for w in b]) 
     l.append(a+"):("+c) 
    with open("banr.DB","w") as t: 
     t.write("\n".join(sorted(l))) 

什麼，我想是以下保存和格式加載此信息在給定的例子：

{roomname: {username:reason, username:reason, username:reason}, roomname: {username:reason, username:reason, username:reason}} 

然而

，而不是我得到這個：

anime-gir):(k)-(a)-(m)-(i)-(j)-(o)-(u)-(t)-(o)-(u)-(m)-(a)-(3)-(1)-(0 

的原因是不那裏和用戶名已被拆分它也不是字典格式

有人可以告訴我我做錯了什麼，什麼代碼將適合在這裏做我想要什麼，而不是我目前有什麼？

Answer 1

banr.banr_database[roomname].update({username:reason}) 

類型的字典沒有追加......他們有一個更新應該做你想做

保存剛剛序列化數據是什麼？泡菜工程這個... JSON做它要快得多，雖然

import json 
db_fname = "banr.DB" 
def load(): 
    banr.banr_database = json.load(open(db_fname)) 

def save(): 
    json.dump(banr.banr_database,open(db_fname,"w"))