python - 设置表的输出顺序

Question

我正在尝试生成报告并将下表打印到​​ python 中的文件中:

from tabulate import tabulate
first_table_dict = {}
first_table_dict["Total agents"]        = len(agentUserIdDict)          
first_table_dict["Total users"]         = len(pure_user_dict)
first_table_dict["Users with agent"]    = len(pure_users_with_agents_dict)
first_table_dict["Users with invites"]  = len(user_id_invite_dict)
first_table_dict["RUURL accounts"]      = len(ruurl_set)
f.write(tabulate(first_table_dict.items(), headers = ["Category", "Total"]))

但是输出是:

Category              Total
------------------  -------
Users with invites    81533
Total users           90818
Users with agent      70060
Total agents          45571
RUURL accounts        81288

我知道字典没有排序。如何使列表按照我想要的顺序排列？

Answer 1

你的问题是你所期望的:

>>> {'a': 1, 'b': 2}.items()
[('a', 1), ('b', 2)]

事实上，有时你会得到

[('b', 2), ('a', 1)]

为什么不直接构造这个数据结构呢？

first_table = [
    ("Total agents"        , len(agentUserIdDict)),         
    ("Total users"         , len(pure_user_dict)), 
    ("Users with agent"    , len(pure_users_with_agents_dict)), 
    ("Users with invites"  , len(user_id_invite_dict)), 
    ("RUURL accounts"      , len(ruurl_set))
]
f.write(tabulate(first_table, headers = ["Category", "Total"]))