python / discord.py

问题描述

所以我在代码的开头就声明了3个变量

setup_prefix = None
setup_role: Role = None
setup_channel: TextChannel = None

然后通过on_message事件，我试图调用它们并更改其值

async def on_message(message):
    if servers_setup[message.guild.id]['Step1']:
        global setup_prefix
        setup_prefix = message.content
        servers_setup[message.guild.id]['Step1'] = False
        await message.channel.send("Now,mention the role you want to have admin rights")
        servers_setup[message.guild.id]['Step2'] = True
    if servers_setup[message.guild.id]['Step2']:
        global setup_role
        setup_role: Role = message.content
        servers_setup[message.guild.id]['Step2'] = False
        await message.channel.send("Now,mention the channel where do you want the logs to go into")
        servers_setup[message.guild.id]['Step3'] = True
    if servers_setup[message.guild.id]['Step3']:
        global setup_channel
        setup_channel: TextChannel = message.content
        servers_setup[message.guild.id]['Step3'] = False
        await message.channel.send("Great,Now I can take care of the rest!")
        changeprefix(message,setup_prefix)
        changeadmin(message,setup_role)
        changelogs(message,setup_channel)
        await message.channel.send("Everything was configured. Have a nice day")

第一个（setup_prefix）没问题，但是第二个却在启动机器人时在控制台中抛出错误

SyntaxError: annotated name 'role_setup' can't be global

我不知道问题出在哪里...

解决方法

问题可以简化为

def foo():
    global bar
    bar:int = 1

运行时您会得到

  File "test.py",line 3
    bar:int = 1
    ^
SyntaxError: annotated name 'bar' can't be global

来自PEP 526-变量注释的语法，When annotations aren't allowed：

尝试注释受全局或全局变量影响是非法的在同一函数范围内是非局部的...原因是全局和非局部变量没有自己的变量；因此，类型注释属于在拥有该变量的范围内。

您在脚本顶部的变量范围内进行了注释。无需在函数中再次尝试。只需将这段代码更改为

if servers_setup[message.guild.id]['Step2']:
    global setup_role
    setup_role = message.content

discord.py python python-3.x