上载后使用Python装饰器删除文件

试图用Python来理解装饰器

我正在尝试编写一个包含2个函数的类：

一种函数，它将数据帧作为参数，并使用tablate将其写入文本文件

将文件上载到Slack并在5秒后将其删除的功能

我在理解如何使用装饰器以及如何使用args和kwargs时被绊倒了

我的结构的最终结果是：

from slacker import Slacker
from tabulate import tabulate
import functools
import time, os

class Slack:
    def __init__(self, api_token, channel):
        self.Slacker = Slacker(api_token)
        self.channel = channel

    @functools.wraps(func)
    def upload(func):
        def upload_wrapper(self, *args, **kwargs):
            self.slack.files.upload(file, 
                                    channels=self.channel,
                                    title=head,
                                    initial_comment=comment)
            time.sleep(5)
            os.remove(file)
        return upload_wrapper(self, *args, **kwargs)

    def generate_text_file(self, filename, df):
        table = tabulate(filename, tablefmt="grid", headers=df.columns)
        with open(filename, 'w') as f:
            f.write(table)

我期望的结果是调用一个函数，它为我准备一个文件，然后将它上传到Slack并删除它，这样系统上就不会保留任何文件（我会通过cronjob来运行）

---

任何帮助都将不胜感激……

我从未见过在python中对表达式应用装饰程序。你确定这是合法的开始吗？看起来你应该用表达式作为参数调用函数为什么不合法？？

slack = Slacker(api_token)

def upload(func):
    @functools.wraps(func)
    def upload_wrapper(*args, **kwargs):
        slack.files.upload(file,
                          channels=channel, 
                          title=head,
                          initial_comment=comment)

        time.sleep(5)
        os.remove(file)
    return upload_wrapper(*args, **kwargs)

from slacker import Slacker
from tabulate import tabulate
import functools
import time, os

class Slack:
    def __init__(self, api_token, channel):
        self.Slacker = Slacker(api_token)
        self.channel = channel

    @functools.wraps(func)
    def upload(func):
        def upload_wrapper(self, *args, **kwargs):
            self.slack.files.upload(file, 
                                    channels=self.channel,
                                    title=head,
                                    initial_comment=comment)
            time.sleep(5)
            os.remove(file)
        return upload_wrapper(self, *args, **kwargs)

    def generate_text_file(self, filename, df):
        table = tabulate(filename, tablefmt="grid", headers=df.columns)
        with open(filename, 'w') as f:
            f.write(table)

workspace_name = Slack(api_token, channel=channel_name)

df = some_pandas_function()

@upload
workspace_name.generate_text_file("filename.txt", df)