config.py

# Qtile 0.8.0
# sysd widget sample

class Sysd(base.ThreadedPollText):
    defaults = [
        (
            'api_url_root',
            'http://127.0.0.1:8080/',
            'API URL Root'
        ),
        (
            'api_url_path',
            'sysinfo',
            'API URL Path'
        ),
        (
            'format',
            'Uptime: {Uptime} sec',
            'Display format'
        ),
    ]

    def __init__(self, **config):
        base.ThreadedPollText.__init__(self, **config)
        self.add_defaults(Sysd.defaults)

    def poll(self):
        url = self.api_url_root + self.api_url_path

        response = urlopen(url).read()

        data = json.loads(response)

        return self.format.format(**data)

screens = [
    Screen(
        top=bar.Bar(
            [
                Sysd(update_interval=1, foreground=foreground, background=background),
                Sysd(api_url_path='sysinfo', format="Free: {Freeram}", update_interval=1, foreground=foreground, background=background),
            ],
            30,
        ),
    ),
]