Gnome Notification for running podman containers with button to kill them

check_containers.py

#!env/bin/python

import gi, subprocess, sys, time
gi.require_version('Notify', '0.7')
from gi.repository import GLib,Notify

class App():
    
    def __init__(self):
        self.containers = []
        self.last_notification = None
        Notify.init('Containers')
        self.check_notify()

    def check_notify(self):
        self.containers = self.get_containers()
        if self.containers:
            message = str()
            for container in self.containers:
                message = message + "{name} ({image})\n - Running since {created}\n".format(**container)
            notification = self.last_notification = Notify.Notification.new("Containers are running",message,'dialog-information')
            notification.set_timeout(20)
            notification.add_action(
                "action_click",
                "Kill Running Containers",
                self.kill_containers,
                None
            )
            notification.show()
        GLib.timeout_add_seconds(3600, self.check_notify)
    
    def get_containers(self):
        containers = []
        keys=['created','name','image','id']
        pman_out = subprocess.run(["podman","ps","--format",'{{.Created}}|{{.Names}}|{{.Image}}|{{.ID}}'],capture_output=True)
        if pman_out.returncode == 0: 
            if not pman_out.stdout:
                print("No containers are currently running.")
                return containers
            containers_inp = pman_out.stdout.decode("utf-8")
            containers_lines = containers_inp.split("\n")
            for line in containers_lines:
                if line:
                    container = dict(zip(keys,line.split('|')))
                    containers.append(container)
        else:
            print(pman_out.stderr.decode("utf-8"))
        return containers
        
    def kill_containers(self, notification, action_name, data):
        ids = []
        for container in self.containers:
            ids.append(container["id"])
        if ids: 
            pman_out = subprocess.run(["podman","rm","-fv",*ids],capture_output=True)
            print(str(pman_out.stderr) + str(pman_out.stdout))
            notification.close()
    

app = App()
GLib.MainLoop().run()