我正在创建一个代码，该代码应该允许用户从列表中选择多个对象。 每个用户都有分配的空间量，每个对象都有指定的大小。 我试图根据对象的稀有性填充列表，并且仅显示大小等于或小于用户留下的分配空间的项目。
但是，一旦用户选择了一个对象并且列表仅更新为剩余大小范围内的对象，用于显示列表的代码将不再起作用，并且会收到以下错误：
AttributeError：“str”对象没有属性“items”
user_stage1_objects = []
selected_objects_size = 0
timeframe1 = {
"Option1": {
"Common": [{"Item Name": "A1", "Size": "3"}, {"Item Name": "A2", "Size": 4}],
"Uncommon": [{"Item Name": "B1", "Size": 2}, {"Item Name": "B2", "Size": 1}]
},
"Option2": {
"Common": [{"Item Name": "C1", "Size": 3}, {"Item Name": "C2", "Size": 1}],
"Uncommon": [{"Item Name": "D1", "Size": 2}, {"Item Name": "D2", "Size": 4}]
}
}
timeframe2 = {
"Option1": {
"Common": [{"Item Name": "A1", "Size": "3"}, {"Item Name": "A3", "Size": 2}],
"Uncommon": [{"Item Name": "B1", "Size": 2}, {"Item Name": "B2", "Size": 1}]
},
"Option2": {
"Common": [{"Item Name": "C2", "Size": 1}, {"Item Name": "C3", "Size": 3}],
"Uncommon": [{"Item Name": "D1", "Size": 2}, {"Item Name": "D2", "Size": 4}]
}
}
def stage1_selection():
global max_amount_limit, selected_objects_size, available_objects_list, user_stage1_objects
objects_chosen = None
user_stage1_objects = []
available_objects_list = []
timeframe_choice = input("""
Select Timeframe1 or Timeframe2
1 - Timeframe1
2 - Timeframe2
> """)
if timeframe_choice == "1":
chosen_timeframe = timeframe1
elif timeframe_choice == "2":
chosen_timeframe = timeframe2
else:
print("Not a valid choice, try again")
while objects_chosen is None:
if (max_amount_limit - selected_objects_size) > 3:
if chosen_timeframe == timeframe1:
available_objects_list = timeframe1["Option1"]["Common"]
elif chosen_timeframe == timeframe2:
available_objects_list = timeframe2["Option2"]["Common"]
elif (max_amount_limit - selected_objects_size) < 4:
available_objects_list = []
if chosen_timeframe == timeframe1:
available_objects_list = {
options: {
rarity: [
item for item in items
if item["Size"] < 4
]
for rarity, items in options.items()
if rarity == "Common"
}
for option, options in timeframe1.items()
if option == "Option1"
}
elif chosen_timeframe == timeframe2:
available_objects_list = {
options: {
rarity: [
item for item in items
if item["Size"] < 4
]
for rarity, items in options.items()
if rarity == "Common"
}
for option, options in timeframe2.items()
if option == "Option1"
}
elif (max_amount_limit - selected_objects_size) < 3:
available_objects_list = []
if chosen_timeframe == timeframe1:
available_objects_list = {
options: {
rarity: [
item for item in items
if item["Size"] < 3
]
for rarity, items in options.items()
if rarity == "Common"
}
for option, options in timeframe1.items()
if option == "Option1"
}
elif chosen_timeframe == timeframe2:
available_objects_list = {
options: {
rarity: [
item for item in items
if item["Size"] < 3
]
for rarity, items in options.items()
if rarity == "Common"
}
for option, options in timeframe2.items()
if option == "Option1"
}
object_availability = available_objects_list
object_itr = 0
for i in object_availability:
print(object_itr, end=' - ')
for key, val in i.items():
print(key, ": ", val, end='\n ')
print()
object_itr = object_itr+1
chosen_object_index = input("> ")
chosen_object_index = int(chosen_object_index)
user_stage1_objects.append(object_availability[chosen_object_index]["Item Name"])
selected_objects_size = selected_objects_size + object_availability[chosen_object_index]["Size"]
if max_amount_limit == selected_objects_size:
objects_chosen = "Done"
else:
continue_object_selection = input("""
You have """+str(int(max_amount_limit - selected_objects_size))+""" amounts left.
Do you want to select more objects from Option1, or move on to Option2?
1 - Continue with Option1
2 - Move on to Option2
>""")
if continue_object_selection == "1":
objects_chosen is None
elif continue_object_selection == "2":
objects_chosen - "Done"
else:
print("Not a valid choice, try again")
def fill_chosen_objects():
global max_amount_limit, selected_objects_size, available_objects_list, user_stage1_objects
max_amount_limit = 5
selecting_objects = input("""
Would you like to see available choices from Option1?
1 - Yes
2 - No
> """)
if selecting_objects == "1":
stage1_selection()
elif selecting_objects == "2":
objects_chosen = "Done"
return user_stage1_objects
fill_chosen_objects()
很抱歉在这里放置了很长的代码，但我之前尝试过发布较小的代码部分，但当应用于较大的代码库时，有效的方法似乎不起作用。
基本上，一旦考虑了 max_amount_limit（他们已经选择的累积项目），用户就不应该看到尺寸大于其剩余尺寸的对象。
我能够第一次看到对象列表，但当我尝试查看列表以选择第二个对象时，它崩溃了。
这一行出现 AttributeError: 'str' object has no attribute 'items' 错误
for key, val in i.items():谢谢你
您多次将
available_objects_list当迭代
for i in object_availability:i替换例如：
available_objects_list = {
options: {
rarity: [
item for item in items
if item["Size"] < 4
]
for rarity, items in options.items()
if rarity == "Common"
}
for option, options in timeframe1.items()
if option == "Option1"
}
与
available_objects_list = [
{
options: {
rarity: [
item for item in items
if item["Size"] < 4
]
for rarity, items in options.items()
if rarity == "Common"
}
for option, options in timeframe1.items()
if option == "Option1"
}
]